Search

Acclimation refers to the process by which plants adapt to the environment. This study was to illustrate the effect of acclimation length on the metabolic profile of tea leaves. In this study, 32 long‐acclimated tea varieties in Shandong Province and 61 ST varieties were used as materials, and the metabolites of tea plants were detected by using UPLC‐MS/MS method. The results showed that the accumulation of flavonoids, organic acids, and alkaloids in long‐acclimated tea plants was higher than that in ST plants. In contrast, the accumulation of phenolic acids, lipids, and amino acids showed an opposite trend. In long‐acclimated tea varieties, Camellia sinensis cv. Lucha11 (LC11), LC24, and LC30 showed high flavonoids, phenolic acids, organic acids, and alkaloids, which were important metabolites and related to tea quality. This study provides a theoretical basis for understanding the effect of environment on metabolism of tea plants and guides the breeding of new tea varieties with high quality or special flavor. [ABSTRACT FROM AUTHOR]

Introduction: Phenolic acids are believed to play a significant role in tobacco continuous cropping obstacles, but the strength and potential mechanisms of different phenolic acids remain unclear. Methods: This study evaluated the allelopathic effects of six phenolic acids that exhibited cumulative effects in our previous research. Different concentrations of phenolic acids with the strongest allelopathic effects were added to potting soil to explore their impacts on tobacco growth and physiological characteristics, as well as on soil chemical properties and microbial community structure. Results: The results showed that coumaric acid exhibited the strongest direct allelopathic effect. Exogenous coumaric acid significantly reduced soil pH and shifted the soil microbial community from bacteria-dominated to fungi-dominated. Simultaneously, the abundance of bacteria related to nutrient utilization (e.g., Flavisolibacter , Methylobacterium) and fungi related to disease resistance (e.g., Fusicolla , Clonostachys) gradually decreased, along with a reduction in soil catalase, urease, invertase, and acid phosphatase activities. Leaf MDA levels increased continuously with higher concentrations of coumaric acid, while the root resistance hormone (jasmonic acid and the jasmonate-isoleucine complex) levels show the opposite trend. Discussion: Coumaric acid may inhibit tobacco growth by influencing the physiological processes in tobacco plants directly and the broader soil microecological balance indirectly. This study provides theoretical guidance for precise mitigation of continuous cropping obstacles in future tobacco cultivation. [ABSTRACT FROM AUTHOR]

Altitude and ecological factors significantly influence plant growth and the accumulation of secondary metabolites. However, current research on the impact of altitude and ecological factors on the yield and medicinal quality of Artemisia argyi (A. argyi) is limited. This study established sampling sites in wild populations of A. argyi across seven altitude ranges on Funiu Mountain. We quantified the yield, output rate of moxa, and key medicinal ingredients. Additionally, we analyzed the response of yield and medicinal quality of wild A. argyi populations to various ecological factors at different altitudes. The results showed that wild populations of A. argyi exhibited higher yields and medicinal quality at altitudes below 500 m. Yield was positively correlated with higher soil total nitrogen (TN) content and lower soil total phosphorus (TP) content, while the improvements in medicinal quality were positively associated with higher population density and lower contents of both soil TN and TP. The variation in soil C/N, C/P, and N/P ratios across different altitudes was substantial, affecting soil mineralization and subsequently influencing the absorption of mineral elements by A. argyi. Notably, the phosphorus content in leaves and stems was negatively correlated with yield and medicinal quality, respectively. In contrast, the accumulation of nitrogen, phosphorus, and potassium in leaves was positively correlated with yield. The differences in the primary medicinal ingredients between the leaves and stems of A. argyi were maximum at altitudes below 500 m. The contents of neochlorogenic acid and cryptochlorogenic acid in both leaves and stems showed a significant positive correlation. In the principal component analysis, the primary medicinal ingredients from the leaves contributed more significantly to the overall quality than those from stems. These results suggest that A. argyi is best suited for cultivation at altitudes below 500 m. Population density and the soil's TN and TP contents play a crucial role in determining the yield and medicinal quality of A. argyi. Futhermore, the medicinal quality of A. argyi is more indicative of the main medicinal ingredients found in the leaves, while the stems also serve as a key organ for accumulating flavonoids and phenolic acids. [ABSTRACT FROM AUTHOR]

Naturally occurring substituted benzoic acids, known for their exceptional biological activity against Pseudomonas aeruginosa, were reacted with various aldehydes, aniline, and tert‐butyl isocyanide at 25 °C to give the desired hybrids with good to excellent yield in the range of 60–85 % and well characterized by 1H NMR, 13C NMR, HRMS, IR, and HPLC analysis. Molecular docking and simulation studies of compounds were conducted which predicted a high affinity towards quorum‐sensing (QS) receptors of P. aeruginosa. The polyphenolic hybrids were first screened for anti‐QS activity using the Agrobacterium tumefaciens NTL4 biosensor strain, followed by examining the antivirulence potential of selected hybrids against P. aeruginosa PAO1 in vitro. The highest degree of AHL (acyl homoserine lactone) inhibition in PAO1 was observed with the compound having a maximum number of phenolic groups. The hybrids in this investigation were also found to be non‐cytotoxic (biocompatible) towards HEK cells and may be further tested for their therapeutic efficacy against P. aeruginosa infections in vivo. It has been observed that the anti‐QS activity is directly proportional to the number of hydroxyl groups on the aromatic ring and one of the major contributing factors can be their chelating capacity as depicted by CAS shuttle assay. [ABSTRACT FROM AUTHOR]

Polygonatum rhizome is a traditional Chinese medicine of the same origin as food and medicine, and it has high economic value and social benefits. To screen the excellent germplasm resources of Polygonatum kingianum (P. kingianum) and clarify the nutritional and medicinal value of the rhizome of P. kingianum, we used widely targeted metabolomics to analyze the traits and metabolomics of rhizomes of different germplasms of P. kingianum from different growth years. The results showed that different germplasms and growth years of P. kingianum were rich in different nutritional and medicinal components. Among them, Polygonatum kingianum 'Linyun 1′ rhizome (PWR) was richer in amino acids and derivatives, alkaloids, and phenolic acids, while Polygonatum kingianum rhizome (PRR) was richer in flavonoids, organic acids, and phenolic acids. Most of the differential compounds were mainly enriched in PRR when the growth year was one, and PWR had a greater variety and higher content of differential compounds in the third year, which also reflected the advantages of Polygonatum kingianum 'Linyun 1′ (P. kingianum 'Linyun 1′) as an excellent new variety of P. kingianum. The Kyoto Encyclopedia of Genes and Genomes (KEGG) metabolic pathway analysis showed that in P. kingianum with the same age and different germplasms, the significantly enriched metabolic pathway was more active in biosynthesis in PWR. In the same germplasm of P. kingianum from different years, the metabolites involved in PRR were mainly the highest in one-year-old P. kingianum (PR-1) or three-year-old P. kingianum (PR-3), and the metabolites involved in PWR were mainly the highest in three-year-old P. kingianum 'Linyun 1′ (PW-3). The above results showed that the three-year-old PWR had more advantages based on chemical substances. Therefore, this study provided a new theoretical reference for the development of P. kingianum products and the breeding of new varieties. [ABSTRACT FROM AUTHOR]

The present study evaluated the physicochemical parameters, polyphenolics content, levels of heat-induced compounds (acrylamide, furfural, 5-hydroxymethylfurfural), antioxidant properties, as well as sensory quality of shortbread cookies enriched with dried sea buckthorn fruit (SBF). The SBF-enriched cookies were prepared by replacing 1, 2, 3, or 5% of the flour with dried sea buckthorn fruit. Our results showed the presence of 12 phenolic acids and 5 flavonoids in the SBF, while two phenolic acids and two flavonoids were detected in the cookies. Most of the compounds were identified in the cookies enriched with 5% SBF. Among the phenolic acids, benzoic acid was the most abundant, while among the flavonoids, quercetin was the most abundant. 5-hydroxymethylofurfural was not detected in any cookies, and the addition of SBF contributed to the presence of furfural in baked products and increased the amount of acrylamide, and their content increased with the amount of SBF addition. The addition of sea buckthorn fruit at 5% distinctly exceeded the benchmark level of acrylamide in the cookies and worsened their sensory quality. It should also be noted that SBF significantly (p < 0.05) improved the antioxidant potential determined by two tests, ABTS and DPPH. The SBF-enriched cookies were characterized by significantly higher values of crispness and browning index compared to the control cookies. The results of the study indicate that SBF can be successfully used as a component of bakery products. In conclusion, the cookies with SBF can show improved technological and functional properties and constitute an added value bakery product that could provide health benefits. [ABSTRACT FROM AUTHOR]

The gut microbiota metabolizes flavonoids, amino acids, dietary fiber, and other components of foods to produce a variety of gut microbiota-derived metabolites. Flavonoids are the largest group of polyphenols, and approximately 7000 flavonoids have been identified. A variety of phenolic acids are produced from flavonoids and amino acids through metabolic processes by the gut microbiota. Furthermore, these phenolic acids are easily absorbed. Phenolic acids generally represent phenolic compounds with one carboxylic acid group. Gut microbiota-derived phenolic acids have antiviral effects against several viruses, such as SARS-CoV-2 and influenza. Furthermore, phenolic acids influence the immune system by inhibiting the secretion of proinflammatory cytokines, such as interleukin-1β and tumor necrosis factor-α. In the nervous systems, phenolic acids may have protective effects against neurodegenerative diseases, such as Alzheimer's and Parkinson's diseases. Moreover, phenolic acids can improve levels of blood glucose, cholesterols, and triglycerides. Phenolic acids also improve cardiovascular functions, such as blood pressure and atherosclerotic lesions. This review focuses on the current knowledge of the effects of phenolic acids produced from food-derived flavonoids and amino acids by the gut microbiota on health and disease. [ABSTRACT FROM AUTHOR]

One of the challenges of the pharmaceutical and cosmetic industries is to deliver biochemical compounds that can be advantageous for the skin. Research on Boraginaceae taxa has confirmed their use in traditional medicine and proved the potential biological importance of various molecules in cosmetology. The main classes of valuable compounds associated with Boraginaceae taxa are fatty acids, including γ-linolenic acid, essential oils, phenolic acids (e.g., rosmarinic acid), flavonoids, anthocyanins, tannins, and saponins. Highly specific are naphthoquinone pigments (including shikonin) and allantoin. Another distinguishing feature is the accumulation of silica (silicon dioxide) in trichomes. Some taxa produce mucilages. However, pyrrolizidine alkaloids (PAs) with toxic properties are also found (mainly in Symphytum spp.); therefore, their applications should be avoided. Extracts or individual compounds of Boraginaceae plants are characterized by antioxidant, anti-inflammatory, antiseptic, anti-irritant, antiaging, and photoprotective activities. Boraginaceae products are widespread in the cosmetic industry as ingredients of creams, balms, lotions, gels, shampoos, lipsticks, perfumes, and deodorants. The most valuable for the cosmetic industry are raw materials obtained from the genera Alcanna Anchusa, Arnebia, Borago, Buglossoides, Cerinthe, Cordia, Echium, Ehretia, Eriodictyon, Glendora, Lappula, Lithospermum, Lycopsis, Macrotomia, Maharanga, Mertensia, Messerschmidia, Myosotis, Omphalodes, Onosma, Pulmonaria, Rindera, Symphytum, Trachystemon, and Trigonotis. Further research should focus on the search for active substances in other plants of the family. [ABSTRACT FROM AUTHOR]

The aim of this study was to compare the concentration of phenolic compounds, glucosinolates, proteins, sugars and vitamin C between kohlrabi (Brassica oleracea var. acephala gongylodes), Savoy cabbage (B. oleracea sabauda), Brussels sprouts (B. oleracea gemmifera), cauliflower (B. oleracea botrytis), radish (Raphanus sativus) and garden cress (Lepidium sativum) microgreens for their antioxidant and hypoglycemic potential. In addition, we applied an in vitro-simulated system of human digestion in order to track the bioaccessibility of the selected phenolic representatives, and the stability of the microgreens' antioxidant and hypoglycemic potential in terms of α-amylase and α-glucosidase inhibition after each digestion phase. Using spectrophotometric and RP-HPLC methods with statistical analyses, we found that garden cress had the lowest soluble sugar content, while Savoy cabbage and Brussels sprouts had the highest glucosinolate levels (76.21 ± 4.17 mg SinE/g dm and 77.73 ± 3.33 mg SinE/g dm, respectively). Brussels sprouts were the most effective at inhibiting protein glycation (37.98 ± 2.30% inhibition). A very high positive correlation (r = 0.830) between antiglycation potential and conjugated sinapic acid was recorded. For the first time, the antidiabetic potential of microgreens after in vitro digestion was studied. Kohlrabi microgreens best inhibited α-amylase in both initial and intestinal digestion (60.51 ± 3.65% inhibition and 62.96 ± 3.39% inhibition, respectively), and also showed the strongest inhibition of α-glucosidase post-digestion (19.22 ± 0.08% inhibition). Brussels sprouts, cauliflower, and radish had less stable α-glucosidase than α-amylase inhibitors during digestion. Kohlrabi, Savoy cabbage, and garden cress retained inhibition of both enzymes after digestion. Kohlrabi antioxidant capacity remained unchanged after digestion. The greatest variability was seen in the original samples, while the intestinal phase resulted in the most convergence, indicating that digestion reduced differences between the samples. In conclusion, this study highlights the potential of various microgreens as sources of bioactive compounds with antidiabetic and antiglycation properties. Notably, kohlrabi microgreens demonstrated significant enzyme inhibition after digestion, suggesting their promise in managing carbohydrate metabolism and supporting metabolic health. [ABSTRACT FROM AUTHOR]

The potential of the green macroalga Ulva lactuca is increasingly recognized, not only for its environmental benefits, but also for its applications in various industries, including food, pharmaceuticals, and cosmetics. Given this insight, a comprehensive analysis of the chemical profile of U. lactuca from the Adriatic Sea was carried out. The hydrodistillate, rich in (Z,Z,Z)-hexadeca-7,10,13-trienal and hexadecanoic acid, underlines its importance for health-related uses, particularly in lipid metabolism and cellular integrity. Fatty acid analysis showed a predominance of palmitic acid and a favorable n-6/n-3 polyunsaturated fatty acid ratio, suggesting that U. lactuca can make a valuable contribution to a balanced diet. In addition, essential amino acids, including leucine, valine, and isoleucine, support its use as a functional ingredient for muscle repair and metabolic health. The ethanol extract contained 56 compounds, including derivatives of fatty acids, phenolic acids, pigments, flavonoids, and steroids. Many of them, such as hexadecasphinganine, azelaic acid, 5-sulfosalicylic acid, and pheophytin a, have proven roles or potentials in promoting human health. These results confirm that U. lactuca is a rich source of bioactive compounds, emphasizing its potential in scientific research and its expanding industrial applications in health, nutrition, and cosmetics. [ABSTRACT FROM AUTHOR]

• Eggplant is a rich source of health-promoting phenolic acids, mainly chlorogenic acid (CGA). • CGA has various health benefits. • Study identified and analyzed key genes involved in the CGA biosynthesis pathway of eggplant. • This study highlights the potential of engineering the CGA biosynthesis pathway of eggplant. Eggplant (Solanum melongena L.) is a rich source of health-promoting phenolic acids, mainly chlorogenic acid (CGA), and trace elements. CGA has been shown to have antioxidant, anti-inflammatory, neuroprotective, cardioprotective, anticancer, and antidiabetic properties. The natural genome of eggplants contains essential genes for beneficial traits like drought tolerance, disease resistance, and high concentrations of medicinal substances. Transcriptomic analysis of eggplant overexpressing the hydroxycinnamoyl CoA quinate hydroxycinnamoyl transferase (HQT) gene revealed upregulation of 2165 genes, including three similar to HQT and cinnamate-4-hydroxylase (C4H). Sequence similarity analysis showed homology to caffeoyl-CoA O-methyltransferases, key enzymes in the phenylpropanoid pathway leading to CGA biosynthesis. Gene ontology and KEGG pathway analysis identified 5 highly upregulated glycosyltransferase family 43 genes (650.3-fold change). Glycosyltransferases like UDP-glucose:cinnamate glucosyltransferase and cinnamate-glucose 4′-O-glucosyltransferase are crucial for CGA production in eggplant. qRT-PCR validated the potential upregulation of HQT and C4H in transgenic eggplants. Comparative analysis revealed eggplant has the highest CGA content (5–8.1 g/kg dry weight) among vegetables, with foliar CGA acting as a natural insecticide. CGA offers antioxidant, hypoglycemic, antiviral, and hepatoprotective benefits to humans. This study highlights the role of HQT and C4H in elevating the medicinal properties of eggplant through CGA biosynthesis pathway engineering. [ABSTRACT FROM AUTHOR]

• Pelargonium odoratissimum is a rich source of pharmacologically potent metabolites. • Monoterpenes, sesquiterpenes and polyphenols are the leading metabolites of P. odoratissimum. • An overview of the industrial application of P. odoratissimum in pharmaceuticals, supplements, perfumery, cosmetics and soaps production. • The potential of P. odoratissimum in comparison with other Pelargonium species has been reported. It is estimated that about 80 % of the world's population use traditional medicine to treat various diseases. Many herbs of the genus Pelargonium are used in traditional medicine to treat diarrhea, dysentery, fever, respiratory tract infections, liver ailments, wounds, gastroenteritis, hemorrhage, kidney and bladder disorders, and other diseases. They are sources of various biologically active molecules such as volatiles like monoterpenes, sesquiterpenes, or non-volatile metabolites from the group of phenolics, such as tannins, phenolic acids, and flavonoids. This genus is rich in essential oils, which have a wide industrial application in perfumery, cosmetics, soap and cream production due to their good antioxidant potential and anti-ageing/rejuvenating properties. This review therefore contains and discusses the current scientific findings on Pelargonium odoratissimum (L.) L'Hér. – a lesser known member of the genus Pelargonium , alone and in comparison with other Pelargonium species. Studies on the composition of this particular species, as well as its biological potential and prospects for industrial use will be addressed in order to shed new light on its potential applications. [ABSTRACT FROM AUTHOR]

Orobanche crenata is a root holoparasite that depends on its host for nutritional requirements. The shikimate pathway that metabolizes about 30% of the assimilated carbon in photosynthetic plants plays a role in host-parasite relationships. Aromatic amino acids (AAAs) and phenolic acids are derived from the shikimate pathway and serve as precursors of a wide number of primary and secondary metabolites. The effects of the O. crenata parasite on the phenolic acid and AAA profiles of two faba bean varieties and the differences of these compounds between the host organs and attached parasite at infestation stages were studied. Hosts and attached parasites were collected and divided, depending on the stage of parasite development, into four stages. The results revealed that phenolic acids and free AAAs tended to increase in parasitized roots compared to those of healthy roots, and the greatest increase in phenolic contents occurred at the first infestation stage. Syringic acid was observed to be unique to the parasite. Profiles of phenolic acids and AAAs were changed during the developmental stages of the parasite and differed from those of its host. Caffeic in the parasite reached more than 100 times that in Nubaria 4 host roots at the fourth infestation stage. Free phenylalanine in the parasite ranged between 2.2 and 5.5 times its level in host roots at all infestation stages. This study provides much evidence that indicates O. crenata is able to self-regulate its phenolic and AAA metabolites during its developmental stages, which differ from those of its host. [ABSTRACT FROM AUTHOR]

Acanthopanax senticosus belongs to Araliaceae family and is traditionally used as a tonic. The roots and stems are mainly used as treatments for hypodynamia, rheumatism, and hypertension, but their frequent use may lead to extinction. However, comprehensive and simultaneous analysis of the remaining parts were still limited. There is a need to reorganize them for standardization of functional foods. In this study, 50 phenolic compounds and 82 triterpenoid saponins from the shoots, leaves, fruits, and stems of were characterized using UPLC-QTOF-MS and UPLC-QTRAP-MS/MS. Among them, 52 compounds were newly determined as the cis and malonyl-bound phenolic acids and were found to be structural isomers of Acanthopanax flavonoids and saponins. All compounds were absolutely/relatively quantified, and shoots had the highest content. Peroxynitrite and α-glucosidase inhibitory activities were performed, followed by evaluation of structure-activity relationships. Particularly, hederasaponin B and ciwujianoside B showed remarkable efficacy, which were affected by the C-23 hydroxylation, the C-20(29) double bond, and the presence of rhamnose. These detailed profiling can be used as fundamental data for increasing the utilization of A. senticosus and developing them into functional foods. [ABSTRACT FROM AUTHOR]

In this study, we aimed to (i) better understand the phytochemical composition of extracts prepared from the leaves and roots with rhizomes of the scarcely studied Iris versicolor , and (ii) propose optimal extraction conditions (solvent composition, temperature, time) for the isolation of bioactive compounds. A UHPLC-QTOF-MS/MS targeted screening method was applied in combination with in silico fragmentation. The analysis revealed a total of 106 target metabolites, many of which are reported to occur in I. versicolor for the first time. (Iso)flavonoids were the most abundant compounds, followed by terpenoids, phenols, xanthones, phenolic acids, quinones, and steroids, with quinones being reported for the first time in this species. Terpenoids were characteristic of roots with rhizomes, while xanthones dominated in the leaves. Based on the varied experimental conditions, surface response analysis generated significant models for the extraction of terpenoids, quinones, and steroids. Our research provides valuable insight for the effective medicinal and commercial use of I. versicolor. [Display omitted] • A UHPLC-QTOF-MS/MS method was developed for metabolic screening of Iris versicolor. • 106 secondary metabolites detected, including phenolics and terpenoids. • Xanthones dominated in the leaves, while roots were rich in terpenoids. • Quinones reported to occur in I. versicolor for the first time. • Significant extraction models for terpenoids, steroids, and quinones. [ABSTRACT FROM AUTHOR]

Cardiovascular diseases pose a major threat to both life expectancy and quality of life worldwide, and a concerning level of disease burden has been attained, particularly in middle- and low-income nations. Several drugs presently in use lead to multiple adverse events. Thus, it is urgently needed to develop safe, affordable, and effective management of cardiovascular diseases. Emerging evidence reveals a positive association between polyphenol consumption and cardioprotection. Whole wheat grain and allied products are good sources of polyphenolic compounds bearing enormous cardioprotective potential. Polyphenolic extract of the entire wheat grain contains different phenolic compounds viz. ferulic acid, caffeic acid, chlorogenic acid, p-coumaric acid, sinapic acid, syringic acid, vanillic acid, apigenin, quercetin, luteolin, etc. which exert cardioprotection by reducing oxidative stress and interfering with different toxicological processes. The antioxidant capacity has been thought to exert the cardioprotective mechanism of wheat grain polyphenolics, which predominantly suppresses oxidative stress, inflammation and fibrosis by downregulating several pathogenic signaling events. However, the combined effect of polyphenolics appears to be more prominent than that of a single molecule, which might be attained due to the synergy resulting in multimodal cardioprotective benefits from multiple phenolics. The current article covers the bioaccessibility and possible effects of wheat-derived polyphenolics in protecting against several cardiovascular disorders. This review discusses the mechanistic pharmacology of individual wheat polyphenols on the cardiovascular system. It also highlights the comparative superiority of polyphenolic extracts over a single phenolic. [ABSTRACT FROM AUTHOR]

This study investigated the effect of high-pressure enzymatic treatment (HPET) on the quality characteristics such as soluble solid content, yield, flavonoid content, and phenolic acid content of mulberry fruits. Of particular note, first, the quality characteristics of the mulberry fruits were most significantly improved under the high-pressure treatment with mixture of Pectinex Be XXL and Ultra color. Second, in the flavonoids, a decrease in rutin content and increases in hyperoside and quercetin contents were confirmed by HPET, which may be the result of the two-step deglycosylation of rutin by pectinase activity. Finally, the extraction yield of mulberry fruits was maintained during HPET 0–36 h, and its bioactive compound profile was variously changed. Therefore, this study provided new clues as to how the HPET may promote changes in the extraction yield and bioactive substance profile of mulberry fruits and suggest the potential for use of natural materials based on mulberry fruit extracts. [ABSTRACT FROM AUTHOR]

Summary: This study investigates the impact of germination and ozone treatment on the nutritional and bioactive properties of grains of two amaranth varieties. The study focused on the proximate composition, antioxidant activity, phenolic and flavonoid content, and amino acid profile of untreated and treated grains of two amaranth varieties. Germination significantly increased the protein content by 18.5%, crude fibre by 25.7%, and total phenolic content by 34.2% compared to the control. Ozone treatment further enhanced these properties, with a notable increase in antioxidant activity by 41.8% and total flavonoid content by 29.6%. The amino acid profile analysis revealed a significant rise in essential amino acids, particularly lysine, which increased by 22.4% following the combined treatment. These findings suggested that the combined application of germination and ozone treatment significantly enhances the nutritional quality and bioactive properties of amaranth, making it a superior ingredient for functional food products. The results indicated that these processes could be effectively utilised to boost the health benefits of amaranth, contributing to the development of nutrient‐rich food products. [ABSTRACT FROM AUTHOR]

In recent years, the global production and industrialization of avocados has led to the generation of large numbers of peel, seeds, and leaf by-products with significant environmental implications. Current efforts, including the Sustainable Development Goals, aim towards the development of sustainable operations through the valorization of waste. Previous research has focused on studying the rich chemical composition of these avocado by-products. Current studies are working on the isolation of polyphenols, flavonoids, phenolic acids and other bioactive compounds found in avocado peel, seeds and leaves for applications in nutraceutical products in the food, pharmaceuticals and cosmetics industries. The inclusion of these extracts in industrial matrices often requires stabilization technologies such as encapsulation emulsions to ensure the delivery and bioactivity of these target compounds. This review will discuss the global production volumes of avocado and its by-products as well as the potential inclusion in various industries based on their chemical compositions. Additionally, this work addresses the various applications that have been previously proposed for the wastes and their extracts. This review also covers the stabilization techniques previously employed in avocado extract treatment, their applications, and the current challenges and opportunities associated with avocado by-products. [ABSTRACT FROM AUTHOR]

Transformed roots of Salvia austriaca were cultivated for 45 days in various systems, including Erlenmeyer flasks, a temporary immersion system (TIS) bioreactor, and a mist-trickling bioreactor, under controlled light conditions. The mist-trickling bioreactor yielded the highest biomass, with fresh and dry weights of 155.4 g/L and 10.2 g/L, respectively. Quantitative UHPLC analysis of hydromethanolic extracts revealed the biosynthesis of significant phenolic acids: caffeic acid, rosmarinic acid, and salvianolic acid A. Among these, rosmarinic acid was the most abundant, with its concentration varying based on the cultivation system. The highest total phenolic acid content, 165 mg/L, was obtained in the mist-trickling bioreactor, demonstrating its superiority in both biomass production and phenolic acid biosynthesis. This study highlights the potential of mist-trickling bioreactors for optimizing growth and metabolite production in S. austriaca transformed root cultures. [ABSTRACT FROM AUTHOR]

The genus Lagerstroemia L. (Lythraceae), known for its exquisite flowers and prolonged flowering period, is commonly employed in traditional medicinal systems across Asian countries, where it has always been consumed as tea or employed to address ailments such as diabetes, urinary disorders, coughs, fevers, inflammation, pain, and anesthesia. Its diverse uses may be attributed to its rich active ingredients. Currently, at least 364 biological compounds have been identified from Lagerstroemia extracts, encompassing various types such as terpenes, flavonoids, phenolic acids, alkaloids, and phenylpropanoids. Extensive in vitro and in vivo experiments have examined the pharmacological activities of different extracts, revealing their potential in various domains, including but not limited to antidiabetic, anti-obesity, antitumor, antimicrobial, antioxidant, anti-inflammatory, analgesic, and hepatoprotective effects. Additionally, 20 core components have been proven to be associated with antidiabetic and hypoglycemic effects of Lagerstroemia. Overall, Lagerstroemia exhibit substantial medicinal potential, and the alignment between its traditional applications and contemporary pharmacological findings present promising opportunities for further investigation, particularly in food and health products, drug development, herbal teas, and cosmetics. However, evidence-based pharmacological research has largely been confined to in vitro screening and animal model, lacking clinical trials and bioactive compound isolations. Consequently, future endeavors should adopt a more holistic approach. [ABSTRACT FROM AUTHOR]

This study investigates the impact of lactic acid bacteria (LAB) on the metabolic and sensorial profile of mulberry juice, exploiting both monoculture and co-culture fermentation methods. The fermentation process was assessed using advanced analytical methods, including HPLC, HS-SPME-GC/MS, E-nose, and sensory evaluations. The results demonstrate that LAB fermentation significantly enhanced the phenolic content and volatile compound profile of mulberry juice. Specifically, co-culture fermentation resulted in a significant increase in anthocyanins with the highest anthocyanin levels observed in the LP-LPC treatment (445.87, p < 0.05). Additionally, flavonoid content increased by 18.7% (p < 0.05) in co-cultured samples, and phenolic acids were significantly raised in the LPC-LH group (1545.24, p < 0.05). The analysis identified 132 distinct volatile compounds in the fermented samples, with the LP-LPC group showing the highest concentration of esters and aldehydes, contributing to a more pronounced fruity and floral aroma. The sensory evaluation revealed that co-culture fermentation improved the flavor profile, with significant enhancements in fruity and floral notes (p < 0.05). The study underscores the potential of LAB, particularly in co-culture systems, to optimize the nutritional and sensory qualities of mulberry juice, paving the way for its application in functional food development. [ABSTRACT FROM AUTHOR]

ABSTRACT Nanoparticles (NPs) are well‐known biostimulants in plant biotechnology, utilised to enhance the physical properties of plants and exhibit positive effects on them. The important key role is the most suitable type, effective dose and size of NP to be used in plant tissue culture systems. In this study, various concentrations of silver nanoparticles (AgNPs; 0, 25, 50, 75 and 100 μg L−1) were tested as elicitors in callus culture with the aim of enhancing secondary metabolite production in lemon balm (Melissa officinalis L.). According to the results obtained, callus formation rates have shown an increase in all applications compared to the control group. The highest callus formation, weight and diameter were observed in 50 μg L−1 application. In this application, the callus structure was compact and its colour was green. However, the aromatic compounds, neral and geranial increased significantly in 25 μg L−1 application. The maximum increase in phenolic compounds such as caffeic acid, chlorogenic acid, proto‐catechic acid, hesperidin and p‐coumaric acid was observed in the 75 μg L−1 AgNP and the highest increase in rosmarinic acid compound was determined in the 50 μg L−1 application. The study found that AgNP applications are an effective method for increasing the production of secondary metabolites in medicinal and aromatic plants, such as lemon balm, in vitro. [ABSTRACT FROM AUTHOR]

Propolis is a sticky substance produced by bees because of the reaction of beeswax, pollen, and bee enzymes. Particularly, their biological activity and chemical content attract attention. Thus, in this study, the total amount of phenolic and flavonoid substances, Fe3+‐Fe2+, Cu2+ (cupric ions reducing activity [CUPRAC]), and Fe3+‐TPTZ (ferric ions reducing antioxidant power [FRAP]) reducing, and DPPH• and ABTS•+ scavenging assays in vitro antioxidant properties of propolis samples obtained from four different provinces of Türkiye were determined. In addition, the chemical content of propolis samples was quantitatively determined by LC–MS/MS, and the antiglaucoma property was revealed by hCAII enzyme inhibition. Propolis samples from Ordu presented the highest amounts of total phenolic and flavonoid content (492.3 ± 5.8 and 96.1 ± 2.1, respectively) and also highest antioxidant activity (DPPH• and ABTS•+ IC50 [μg/mL]: 8.884 ± 0.84 and 4.589 ± 0.80, respectively; Fe+3, CUPRAC, and FRAP: 1.051 ± 0.012, 1.021 ± 0.008, and 0.957 ± 0.007 μg/mL, respectively). hCAII enzyme inhibition was highest in Muş propolis (IC50 [μg/mL]: 8.6) as determined. By LC–MS/MS, 53 different components were screened and 35 bioactive components were determined. According to the results, propolis was found to be a raw material because it contains high concentrations of acacetin, chrysin, caffeic acid, and quinic acid (123.824, 24.759, 47.779, and 16.32 mg analyte/g extract, respectively). [ABSTRACT FROM AUTHOR]

Copyright of Food & Fermentation Industries is the property of Food & Fermentation Industries and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Food & Fermentation Industries is the property of Food & Fermentation Industries and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The lipophilization of polyphenols (phenolipids) may increase their affinity for membranes, leading to better antioxidant protection. Cholesteryl esters of caffeic, dihydrocaffeic, homoprotocatechuic and protocatechuic acids were synthetized in a one-step procedure with good to excellent yields of ~50–95%. After evaluation of their radical scavenging capacity by the DPPH method and establishing the anodic peak potential by cyclic voltammetry, their antioxidant capacity against AAPH-induced oxidative stress in soybean PC liposomes was determined. Their interaction with the liposomal membrane was studied with the aid of three fluorescence probes located at different depths in the membrane. The cholesteryl esters showed a better or similar radical scavenging capacity to that of α-tocopherol and a lower anodic peak potential than the corresponding parental phenolic acids. Cholesteryl esters were able to protect liposomes to a similar or greater extent than α-tocopherol. However, despite their antiradical capacity and being able to penetrate and orientate in the membrane in a parallel position to phospholipids, the antioxidant efficiency of cholesteryl esters was deeply dependent on the phenolipid polyphenolic moiety structure. When incorporated during liposome preparation, cholesteryl protocatechuate and caffeate showed more than double the activity of α-tocopherol. Thus, cholesteryl phenolipids may protect biomembranes against oxidative stress to a greater extent than α-tocopherol. [ABSTRACT FROM AUTHOR]

Glucose and lipid metabolism disorders are the core pathological mechanism of a variety of metabolic diseases, and the incidence of related diseases is increasing year by year, which seriously threatens human life and health. Traditional Chinese medicine with medicinal and edible properties refers to Chinese medicinal resources that have both medicinal and edible characteristics. Due to its safety and its health-promoting and medicinal functions, traditional Chinese medicine has received increasing attention in the development of functional health foods. Phenolic acids are important secondary metabolites that are ubiquitous in medicinal and edible homologous plants, and the regulation of glycolipid metabolism is an important activity and plays a key role in many diseases. In this paper, we focus on the alleviation of glycolipid disorders using MEHH phenolic acids, which regulate glucose metabolism and lipid metabolism, improve insulin resistance, inhibit inflammatory responses, alleviate oxidative stress, and regulate intestinal flora; additionally, we summarize the mechanism in order to provide a reference for MEHH phenolic acids in the treatment of glycolipid metabolism diseases. [ABSTRACT FROM AUTHOR]

The phenolic composition of virgin olive oil (VOO) primarily depends on the phenolic content of the olive fruit. The purpose of this work was to characterize the first metabolic step in the synthesis of tyrosol (Ty) and hydroxytyrosol (HTy), whose derivatives are by far the predominant phenolics in both olive fruit and VOO. To this end, two genes encoding tyrosine/DOPA decarboxylase enzymes, OeTDC1 and OeTDC2, have been identified and functionally and physiologically characterized. Both olive TDC proteins exclusively accept aromatic amino acids with phenolic side chains, such as tyrosine and 3,4-dihydroxyphenylalanine (DOPA), as substrates to produce tyramine and dopamine, respectively. These proteins exhibited a higher affinity for DOPA than for tyrosine, and the catalytic efficiency of both proteins was greater when DOPA was used as a substrate. Both olive TDC genes showed a fairly similar expression profile during olive fruit ontogeny, with OeTDC1 consistently expressed at higher levels than OeTDC2. Expression was particularly intense during the first few weeks after fruit set, coinciding with the active accumulation of Ty and HTy derivatives. The data suggest that both olive TDCs are responsible for the initial step in the synthesis of the most important phenolics, both quantitatively and functionally, in VOO. [ABSTRACT FROM AUTHOR]

This study explored the effect of geographical and floral origins on the antioxidant activities of Saudi honey samples related to their content of short peptides originated from honeybee proteins. The studied antioxidants were the total protein concentration, catalase activity, phenolic acids and flavonoids. The antioxidant activity assays included were the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay, the ferric reducing antioxidant power (FRAP) assay and Ascorbic acid Equivalent Antioxidant Capacity (AEAC). The studied honey samples were obtained from the southwestern region of Saudi Arabia, namely Asir (65) and Jazan (25). The floral origins of the honey samples were Acacia (51), Ziziphus (4) and polyfloral (35). The LC/MS technique was used to detect the short peptides and the mascot database was used to identify the short peptides, their precursor proteins and the protease enzymes that produce them. Jazan honey was characterized by high number of short peptides. The short peptides were originated from honeybee proteins by the action of proteases from the honeybees and bacteria. The antioxidant activity of the honey samples increase with the increase of their content of short peptides and proteins. The amino acids type and sequence of the short peptides qualify them to act as antioxidant, antimicrobial, anti-diabetic, anti-hypertension, immunomodulatory and cholesterol lowering peptides. [ABSTRACT FROM AUTHOR]

Bletilla striata has been used in traditional Chinese medicine for thousands of years to treat a variety of health diseases. Currently, metabolic causes of differences in medicinal values are unknown, due to the lack of a large-scale and comprehensive investigation of metabolites in Bletilla species. In order to gain a better understanding of the major chemical constituents responsible for the medicinal value, this study aimed to explore the metabolomic differences among three Bletilla species (Bletilla striata: Bs, Bletilla ochracea: Bo and Bletilla formosana: Bf). There were 258 different metabolites between 'Bo' and 'Bf', the contents of 109 metabolites had higher abundance, while 149 metabolites showed less accumulation. There were 165 different metabolites between the 'Bs' and 'Bf', content of 72 metabolites was increased and content of 93 metabolites was decreased. There were 239 different metabolites between the 'Bs' and 'Bo', content of 145 metabolites was increased and content of 94 metabolites was decreased. In the Bo_vs_Bf, Bs_vs_Bf and Bs_vs_Bo groups, the major differential categories were flavonoids, phenolic acids, organic acids and alkaloids. Moreover, the differential metabolites were clustered into clear and distinct profiles via K-means analysis. In addition, the major differential categories were flavonoids, phenolic acids, organic acids and alkaloids. The 'Flavonoid biosynthesis' (ko00941) and 'Phenylalanine metabolism' (ko00360) pathways were significantly enriched in Bo_vs_Bf, Bs_vs_Bf and Bs_vs_Bo comparisons. These results clarify the metabolomics in different Bletilla species, as well as providing basis for the phamaceutical value of novel species of Bletilla. [ABSTRACT FROM AUTHOR]

Copyright of Food & Fermentation Industries is the property of Food & Fermentation Industries and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Food & Fermentation Industries is the property of Food & Fermentation Industries and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Food & Fermentation Industries is the property of Food & Fermentation Industries and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The natural sweetness, unique flavour, and potential health benefits of honey make it a desirable ingredient for ice cream that can increase its appeal for consumers. The aim of this study was to investigate the polyphenolic content and sensory properties of ice cream made using a variety of New Zealand honey (clover, bush, pōhutukawa, rewarewa, kamahi, and thyme honey). The major polyphenols in honey ice cream were quinic acid, pinocembrin, hydroxybenzoic acid, pinobanksin and chrysin. Thyme and clover honey ice cream had the highest concentration of polyphenols. Ice cream sweetened with sucrose, as well as pōhutukawa, rewarewa and kāmahi honey were the most liked ice cream in terms of overall liking. [ABSTRACT FROM AUTHOR]

Extracts from leaves and stems of Thymelaea tartonraira (L.) All. growing in Tunisia were characterised for the presence of flavonoids and phenolic acids by LC-ESI-MS analysis. Twelve flavonoids and ten phenolic acids were detected for the first time in the aerial parts of this plant species, the most abundant compounds being gallic acid, kaempferol, catechin, chlorogenic acid, naringenin and acacetin. The extracts were subjected to in vitro antileishmanial, antifungal and cytotoxic assays, showing promising antileishmanial activity for the E6 dichloromethane extract from the stems (IC50 values of 1.12 ± 0.50 and 5.41 ± 1.84 µg/mL on L. donovani axenic and intramacrophagic amastigotes, respectively) at the level of the reference drug miltefosine for axenic model. No antifungal activity was observed against Candida albicans (CAAL) and Aspergillus fumigatus (ASFU) strains, with the exception of the E6 dichloromethane extract (IC50 value of 25.28 ± 4.89 µg/mL on CAAL93 strain). Low toxicity was also highlighted against macrophages Raw 264.7 cells. These promising results point out Thymelaea tartonraira (L.) All. extracts as a valuable source of new natural products to combat leishmaniasis. [ABSTRACT FROM AUTHOR]

Arisarum vulgare O. Targ. Tozz. (Araceae), locally known as "Elbgouga," holds significant traditional importance in Algeria for the treatment of various human ailments, including pain, infections, inflammation, digestive disorders, cancer, skin problems, eczema, wounds, and burns. The aim of this study was to explore for the first time the phytochemical profile, antioxidant, antibacterial, and inhibitory effects on acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) enzymes, DNA protection, and capacity to promote wound healing. Preliminary phytochemical experiments were conducted to evaluate the major classes of bioactive compounds, in addition to the total phenol and flavonoid amounts in AVEE. An LC‐MS/MS analysis was conducted to clarify the phytochemical composition of this particular botanical species. The antioxidant capacity was assessed using DPPH· and ABTS·+ radical scavenging tests. The agar diffusion approach was used to ascertain the antibacterial efficacy against four bacteria (Staphylococcus aureus, Enterococcus faecium, Escherichia coli, and Salmonella typhimurium). Cholinesterase inhibition was evaluated using a colorimetric method that relies on Ellman's reaction. The protective effects of AVEE on pBR322 plasmid DNA damaged by H2O2 and UV treatment were assessed by their DNA‐breaking forms. The in vivo acute dermal toxicity and wound healing potential of the AVEE ointment (1–5% AVEO) were also investigated, and histological analyses were carried out on biological samples. Five protein targets were the subject of an in silico molecular docking investigation (TNFα, TGFBR1, IL‐1ß, GSK‐3ß, and NOS) and ADMET studies of the main components of the extracts were performed. The screening of phytochemicals revealed a significant concentration of phenolic compounds (176.00 ± 1.08 mg of gallic acid equivalents/g of dry extract), mainly flavonoids (81.21 ± 1.24 mg of quercetin equivalents/g of dry extract). Three major compounds were identified by LC‐MS/MS analysis, belonging mainly to the class of flavonoids, with rutin as the most abundant compound (11.85 mg/g extract), followed by hesperidin (4.125 mg/g extract). A conspicuous presence of isoquercitrin (1.327 mg/g extract) was also found. Small amounts of flavonoids and phenolic acids were also detected (catechin, chlorogenic acid, syringic acid, salicylic acid, kaempferol, and luteolin). DPPH assay showed higher antioxidant capacity compared to the ABTS·+ assay (142.60 ± 5.52 µg/mL and 236.10 ± 0.22 µg/mL, respectively). AVEE was effective against all selected bacterial strains; however, the highest zone of inhibition (36.00 ± 0.1 mm) was noted against E. faecium. The extract of the plant significantly inhibited both AChE and BChE (89.98 ± 18.76 µg/mL inhibitory activity against AChE and 98.28 ± 44.68 µg/mL inhibitory activity against BChE, respectively). The ethanolic extract of A. vulgare and quercetin exhibited more significant DNA protection action in form I, with percentages of 90.41 and 94.23%, respectively, compared to form II, where the percentages were 27.91 and 51.92%, respectively. The AVEO formulation may be safely administered by topical application. A statistically significant wound contraction was discovered in the group treated with 5% AVEO compared to the groups that were not treated or treated with petroleum jelly. Furthermore, there was no notable disparity detected between the group treated with 5% AVEO and the group treated with the reference drug. The 5% AVEO‐treated group showed, after the research was complete, the most significant percentage of wound contraction (96.90 ± 0.42%). Moreover, the topical application of the formulation improved histological parameters. In silico study showed that rutin, hesperidin, and isoquercitrin had a high affinity to the five main targets that might contribute to the wound healing potential of A. vulgare ethanolic extract. The impressive biological capabilities of A. vulgare indicate that the plant has the ability to be a valuable source of bioactive chemicals with various medical applications. [ABSTRACT FROM AUTHOR]

In this study, the effects of microwave and oven systems on bioactive properties (total phenolic, total flavonoid, and antioxidant capacity), fatty acids, polyphenols, and mineral contents of raw and roasted “Sarışeker” and “Balyumru” tubers are investigated. Antioxidant activity values of “Sarışeker” tigernut tubers roasted in microwave and oven systems are defined to be between 1.56 (540 W) and 2.57 mmolTE kg−1 (720 W) to 1.57 (80 and 120 °C) and 1.68 mmolTE kg−1 (100 °C), respectively. Gallic acid results of the “Sarışeker” and “Balyumru” tigernut tubers roasted in microwave are specified to be between 5.49 (720 W) and 6.59 mg/100 g (540 W) to 15.83 (900 W) and 21.47 mg/100 g (720 W), respectively. In general, the phenolic component values of the “Sarışeker” tigernut tubers roasted at different temperatures are higher than the “Sarışeker” tigernut samples roasted in the microwave. The oleic, linoleic, and linolenic acid values of the oils obtained from “Sarışeker” tubers roasted in both roasting systems increase compared to the control. The heat treatment has different effects on the contents of different elements of the tigernut tubers. It has been observed that there are significant fluctuations in the amounts of minerals in the structure of foods as a result of the heat treatment applied. [ABSTRACT FROM AUTHOR]

Buffalo meat is naturally perishable, making it susceptible to spoilage due to its high moisture content and vulnerability to microbial contamination. Edible coatings have attracted attention as a packaging method that can prolong the shelf life of meat. The study aimed to examine the impact of a combination of Lepidium sativum mucilage (LS) coating and propolis extract (PE) on prolonging the shelf life of buffalo meat. The chemical characteristics (chemical compounds, total phenol content (TPC), total flavonoid content (TFC), antioxidant activity, and cytotoxicity) and antimicrobial activity of the PE (disk diffusion agar, well diffusion agar, minimum inhibitory concentration, and minimum bactericidal concentration) were investigated. The effect of the PE on the cell wall of pathogenic bacteria was examined using a scanning electron microscope. Biological properties of LS (TPC, TFC, antioxidant activity and antimicrobial effect (pour plate method)) was investigated. Different concentrations of PE (0, 0.5, 1.5, and 2.5%) were added to the coating mixture containing LS, and their effects on extending the shelf life of buffalo meat samples stored at 4°C for 9 days were assessed. The PE included gallic acid, benzoic acid, syringic acid, 4–3 dimethoxy cinnamic acid, p-coumaric acid, myricetin, caffeic acid, luteolin, chlorogenic acid, and apigenin. The PE was determined to have a TPC of 36.67 ± 0.57 mg GAE/g and a TFC of 48.02 ± 0.65 mg QE/g. The extract's radical scavenging activity ranged from 0 to 76.22% for DPPH radicals and from 0 to 50.31% for ABTS radicals. The viability of C115 HeLa cell was observed to be 94.14 μg/mL. The PE and LS, exhibited strong antimicrobial properties against pathogenic bacteria. The LS was determined to have a TPC of 15.23 ± 0.43 mg GAE/g and a TFC of 11.51± 0.61 mg QE/g. The LS was determined to have a DPPH of 429.65 ± 1.28 μg/mL and a ABTS of 403.59 ± 1.46 μg/mL. The microbiological analysis revealed that the LS+2.5%PE treatment was the most effective in inhibiting the growth of total viable count (6.23 vs. 8.00 log CFU/g), psychrotrophic bacteria count (3.71 vs. 4.73 log CFU/g), coliforms count (2.78 vs. 3.70 log CFU/g), and fungi count (2.39 vs. 3.93 log CFU/g) compared to the control sample. The addition of PE to the edible coating also demonstrated a concentration-dependent effect on preserving the moisture, pH, color, and hardness of the buffalo meat. Sensory evaluation results suggested that incorporating PE into the edible coating extended the shelf life of buffalo meat by three days. In the second stage of this paper, this investigation employed two distinct forecasting methodologies: the Radial Basis Function (RBF) and the Support Vector Machine (SVM), to predict a range of quality indicators for coated meat products. Upon comparison, the RBF model exhibited a higher level of accuracy, showcasing its exceptional capacity to closely match the experimental outcomes. Therefore, this type of food coating, renowned for its strong antimicrobial properties, has the potential to effectively package and preserve perishable and delicate food items, such as meat. [ABSTRACT FROM AUTHOR]

Background: The research is aimed at exploring the potential of marigold petal tea (MPT), rich in polyphenol contents, against oxidative stress and obesity in a rat model following a high‐fat‐sugar diet (HFSD). Methods: The MPT was prepared through the customary method of decoction and was subjected to analysis for its polyphenol composition using reversed‐phase high‐performance liquid chromatography (RP‐HPLC). Two specific doses of MPT, namely, 250 and 500 mg/kg body weight (BW), were chosen for the study—referred to as MPT‐250 and MPT‐500, respectively. Result: The main phenolic acids and flavonoids identified in MPT, with concentrations exceeding 10 mg/100 mL of tea, included catechin, rutin, salicylic acid, gallic acid, sinapic acid, chlorogenic acid, cinnamic acid, and ellagic acid. The total phenolic (TP) and total flavonoid (TF) contents in MPT were measured to be 5.53 and 7.73 mg/g, respectively. Additionally, MPT demonstrated a 57.2% scavenging capacity with 2,2‐diphenyl‐1‐picrylhydrazyl radical. Notably, the administration of a higher dose (MPT‐500) showed a significant reduction in body mass index (BMI) and a 51.24% reduction in the rate of increase in BW compared to the HFSD group. The findings indicated that all the treatment groups, that is, orlistat treatment (OT), MPT‐250, and MPT‐500 groups, experienced reduced levels of serum total cholesterol (TC), triglyceride (TG), and markers of lipoproteins in contrast to the HFSD group. Moreover, MPT helped restore the levels of malondialdehyde (MDA), superoxide dismutase (SOD), and reduced glutathione (GSH), thereby demonstrating its potential in combating oxidative stress. The MPT‐500 group also displayed decreased liver and kidney weights and an improved atherogenic index when compared to the HFSD group. Conclusion: The results clearly indicate that a high dosage of MPT showed antiobesity activity which was comparable to the same effects produced by the conventional drug orlistat. [ABSTRACT FROM AUTHOR]

Astragalus membranaceus (AM) roots are a well-known homologous medicine and food in China. AM stems, which are discarded and not used effectively, also contain many active compounds and exhibit beneficial effects. It has the potential to be explored as antibiotic alternative. Fermentation combined with enzymatic hydrolysis (FEH) is an effective strategy for extracting polyphenol and improving the usage of AM stems. Therefore, in this study, the conditions of FEH and extraction for polyphenol in AM stems were screened. The antioxidant activity of extract from AM stems without and with FEH (AMSE and FAMSE) was evaluated. The metabolite profiles of phenolic acids and flavonoids in AMSE and FAMSE were characterized by ultra-performance liquid chromatography coupled with electrospray ionization tandem mass spectrometry (UPLC–ESI-MS/MS). The results showed that the highest polyphenol content from AM stems was obtained with cellulase and pectinase (1:1, 2000 U/g), moisture content 43%, fermentation temperature 30 °C, and fermentation time 7 days. Selected extraction conditions of polyphenol were ethanol concentration 50%, ultrasonic power 500 W, extraction temperature 35 °C, and extraction time 40 min. On this condition, compared with AMSE, the polyphenol and flavonoid contents in FAMSE were significantly higher. FAMSE exhibited stronger DPPH, hydroxyl radical scavenging rate and reducing power than AMSE. The relative content of 3-(4-hydroxyphenyl)-propionic acid, dihydroferulic acid, isoferulic acid, 4-hydroxybenzoic acid, 4-hydroxyphenyllactic acid, ferulic acid, vanillic acid, syringic acid, gentisic acid, sinapic acid, apigenin, tricin, acacetin, daidzein, genistein, formononetin, prunetin, pratensein, rhamnocitrin and galangin were significantly upregulated in FAMSE. [ABSTRACT FROM AUTHOR]

In this study, a comparative metabolomic investigation of Prunus salicina and Prunus domestica subsp. syriaca along with their immunological studies were carried out. In preliminary studies fruits were examined for proximate compositions (moisture, ash, fiber, fat, and protein). We found that the total phenolic content of P. domestica peel was the highest (6.11 mg/g GAE) compared to P. salicina peel (4.93 mg/g GAE). Targeted metabolomics revealed chlorogenic acid as one of the major phenolic acid in plum. Using a non-targeted metabolomics approach, metabolite discriminations among the fruit sections are represented by a Venn diagram, heatmap, and PCA. Using the METLIN database, we identified 130 metabolites in fruit sections. The cytotoxic test showed no cell damage even at higher dosages for up to 48 hours. The present study offers fresh insights into the distribution of phytochemicals in the peel and pulp sections of the fruit and can be considered for health-beneficial products and nutraceuticals. [ABSTRACT FROM AUTHOR]

In the present study, the antioxidant activities and total secondary metabolite amounts of different extracts (methanol, acetone, and water) obtained from the leaf and flower parts of Onopordum bracteatum, which was collected from Muğla (Türkiye) were determined for the first time. Antioxidant activity studies were performed with DPPH, ABTS, ß-Carotene/linoleic acid, FRAP, and CUPRAC methods. Secondary metabolite assays were carried out in order to determine the total phenolic, total flavonoid, and total tannin contents of the extracts. In addition, the toxicities (Brine shrimp) of water extracts and the anthelmintic effects of methanol and water extracts were investigated. The leaf methanol extract of O. bracteatum with the highest antioxidant activity in all tests, except the FRAP test (DPPH: IC50= 0.26 ± 0.01 mg/mL, ABTS: IC50= 0.19 ± 0.003 mg/mL, ß-Carotene/linoleic acid: 72.98 ± 1.31%, CUPRAC: 34.02 ± 1.87 mg TE/g extract, FRAP: 3.96 ± 0.65 mg TE/g extract) used to determine the antioxidant activity was observed to have the highest total phenolic content (5.78 ± 0.24 mg GAE/g extract). The highest total flavonoid (32.17 ± 0.82 mg QE/g extract) and total tannin contents (16.41 ± 1.30 mg CE/g extract) were determined in leaf acetone and flower acetone extracts of O. bracteatum, respectively. Concerning the cytotoxic properties, concentration-dependent activity was seen in O. bracteatum water extracts against brine shrimp. Methanol extracts of O. bracteatum showed better anthelmintic activity than water extracts. The results will provide basic data for studies on the pharmacological and medical use of O. bracteatum. [ABSTRACT FROM AUTHOR]

The goal of the present study is to analyze the phytochemicals, antioxidants, cytotoxic, analgesic and anti-diarrheal properties of the leaves of Stachyphrynium placentarium methanol extract as well as its dichloromethane soluble fraction using GC-MS technique. The leaves of the S. placentarium were extracted with methanol and designated as SPM. Phytochemicals investigation exhibited the presence of several important secondary metabolites. Antioxidants such as total phenolic content, flavonoids content, total antioxidant, reducing power capacity and DPPH (2,2-diphenyl-1-picrylhydrazyl) free radical scavenging assay SPM revealed non-significant antioxidant properties. The cytotoxicity study of the extract showed significant cytotoxicity (LC50 35.1093 µg/mL) compared to standard vincristine sulfate (LC50 0.482 µg/mL). Analgesic study of S. placentarium by hot plate model indicates both the doses exhibited significant central analgesic activity compared with the control. The maximum analgesic activity was observed at 90 min. SPM (500 mg/kg) is 60.21 %. SPM250 also showed a significant percentage of elongation or latency from 30 to 150 min 57.00, 59.64, 59.88, 58.07 and 53.71 %, respectively 30 min time interval. In the acetic acid writhing test, S. placentarium significantly outperformed the control and standard (SPM250 - 52.27 %, SPM500 - 34.09 and STD - 27.27 %), showing a significant increase in peripheral analgesic activity (p < 0.001). Antidiarrheal activity of SPM showed that SPM250 and SPM500 substantially decreased the feces in castor oil-induced diarrhea (p < 0.05). According to the study, the incidence and severity of diarrhea are significantly reduced by SPM500. Four chemicals are found in the dichloromethane-soluble portion of the methanol extract of S. placentarium leaves, according to GC-MS studies such as Octadecane, 6-methyl- (1.326 %), Dodecane (1.02 %), 1-Iodo-2-methylundecane (0.47 %), tetradecanoic acid 12-methyl, methyl ester (72.64 %). Tetradecanoic acid exhibits anti-inflammatory, anticancer, 5-reductase inhibitory, antioxidant, hemolytic and antifibrinolytic properties. [ABSTRACT FROM AUTHOR]

Recently, returning rice straw to soil has become a common problem in wheat production because it causes decreased wheat seedling emergence. Allelopathy is an important factor affecting seed germination. However, the effects of rice straw extracts on wheat seed germination and seedling growth remain unclear. Wheat seeds and seedlings were treated with 30 g L−1 of rice leaf extracts (L1), 60 g L−1 of rice leaf extracts (L2), 30 g L−1 of rice stem extracts (S1), 60 g L−1 of rice stem extracts (S2) and sterile water (CK) to study the allelopathic effects of rice straw extracts on wheat seed germination and seedling growth. The α-amylase and antioxidant enzyme activities in wheat seeds; the agronomic traits, photosynthetic indicators, and nutrient contents of wheat seedlings; and the phenolic acids in rice stem extracts were determined. Common allelochemicals, including 4-hydroxybenzoic acid, hydrocinnamic acid, trans-cinnamic acid, vanillic acid, benzoic acid, protocatechualdehyde, caffeic acid, syringic acid, sinapic acid, and salicylic acid, were detected in rice stem extracts. Low-concentration rice leaf and stem extracts (30 g L−1) had no effect on the germination rate of wheat seeds. High-concentration (60 g L−1) rice stem and leaf extracts decreased the seed germination rate by 11.00% and 12.02%. Rice stem extract (60 g L−1) decreased the α-amylase activity, and gibberellin content of wheat seeds but increased superoxide dismutase, peroxidase, and catalase activities and malondialdehyde content in wheat seeds. Allelochemicals entered the internal tissues of wheat seeds, where they decreased the gibberellin content and α-amylase activity and increased the antioxidant enzyme activity, ultimately leading to an inhibitory effect on seed germination. Rice stem and leaf extracts decreased the SPAD value and photosynthetic indicators of wheat seedlings. Rice stem extract (60 g L−1) decreased the fresh weight and root length of wheat seedlings by 31.37% and 45.46%. Low-concentration rice leaf and stem extract (30 g L−1) had no effect on the nutrient contents of wheat seedlings. Rice leaf and stem extracts (60 g L−1) decreased the nitrogen and potassium contents of wheat seedlings. These results indicated that low-concentration rice leaf and stem extract (30 g L−1) had no effect on wheat seed germination and the high-concentration rice stem extract (60 g L−1) released allelochemicals and inhibited wheat seed germination and seedling growth. These findings provide a basis for the improvement of straw return techniques. [ABSTRACT FROM AUTHOR]

Background. Mansoa alliacea is a native plant renowned for its medicinal properties in traditional healing in the Amazon Region. This plant is rich in polyphenols, flavonoids, anthocyanins, phenolic acids, tannins, ketones, triterpenes, as well as other bioactive compounds. Objectives. This study aims to develop an innovative, eco-friendly method for synthesizing silver nanoparticles using an aqueous extract of M. alliacea (Ma-AgNPs), enhancing the biological activities of AgNPs by leveraging the therapeutic potential of the plant's bioactive compounds. Methods. Silver nanoparticles were synthesized using the aqueous extract of M. alliacea. The biological activities of Ma-AgNPs were assessed, including antibacterial, anti-inflammatory, antioxidant, antitumor, and anti-biofilm effects, along with evaluating their hemolytic activity. Results. Quantitative analysis revealed that Ma-AgNPs exhibit potent antibacterial activity against multidrug and non-multidrug-resistant bacteria, with MIC values ranging from 1.3 to 10.0 µg/mL. The Ma-AgNPs significantly reduced NO production by 86.9% at 4 µg/mL, indicating strong anti-inflammatory effects. They demonstrated robust antioxidant activity with an IC50 of 5.54 ± 1.48 µg/mL and minimal hemolytic activity, with no hemolysis observed up to 20 µg/mL and only 4.5% at 40 µg/mL. Their antitumor properties were notable, with IC50 values between 2.9 and 5.4 µg/mL across various cell lines, and they achieved over 50% biofilm inhibition at concentrations of 30–40 µg/mL. Conclusions. These findings underscore the potential of Ma-AgNPs for biomedical applications, particularly in developing new antimicrobial agents and bioactive coatings with reduced toxicity. This research highlights a sustainable approach that not only preserves but also amplifies the inherent biological activities of plant extracts, paving the way for innovative therapeutic solutions. [ABSTRACT FROM AUTHOR]

The composition and stability of the microbial community structure of roots and root zone soils play a key role in the healthy growth of plants. We examined the distribution characteristics of phenolic acids and saponins, as well as microbial communities in the root space (root endosphere, rhizoplane soil, rhizosphere soil, and bulk soil) of healthy and root rot disease-affected Panax notoginseng. The results showed that after infection with root rot, the rhizoplane soil exhibited significant decreases in organic matter and hydrolyzable nitrogen and significant increases in available phosphorus, available potassium, and total nitrogen. The contents of phenolic acids (except benzoic acid) and ginsenoside Rg2 in the root endosphere significantly increased. Ferulic acid and p-hydroxybenzoic acid in the rhizoplane soil significantly increased. Rhodococcus increased significantly in the root endosphere, rhizoplane, and rhizosphere soil; Nitrospira decreased significantly in the rhizoplane, rhizosphere, and bulk soil; and Plectosphaerella decreased significantly in the root endosphere and rhizoplane soil. Moreover, the accumulation of most autotoxins can promote the growth of pathogens. In summary, the spatial autotoxic substances and microbial community differences in P. notoginseng roots jointly induce the occurrence of root rot. IMPORTANCE Panax notoginseng is highly susceptible to soil-borne diseases induced during planting, and root rot, which usually occurs in the root and stem parts of the plant, is the most severe. We divided the root environment of P. notoginseng into four parts (root endosphere, rhizoplane soil, rhizosphere soil, and bulk soil) and studied it with unplanted soil as the control. In this study, we examined the changes in the content of autotoxic substances in the root space of P. notoginseng, along with the interplay between these substances and microorganisms. This study revealed the mechanism underlying root rot and provided a theoretical basis for alleviating continuous cropping obstacles in P. notoginseng. [ABSTRACT FROM AUTHOR]

A precursor feeding strategy was used for the first time in agitated microshoot cultures of Aronia × prunifolia. This strategy involved the addition of biogenetic precursors of simple phenolic acids (phenylalanine, cinnamic acid, and benzoic acid) and depsides (caffeic acid) into the culture media, with an assessment of its effect on the production of these bioactive compounds. The in vitro cultures were maintained in Murashige–Skoog medium (1 mg/L BAP and 1 mg/L NAA). Precursors at five concentrations (0.1, 0.5, 1.0, 5.0, and 10.0 mmol/L) were fed into the medium at the time of culture initiation (point "0") and independently on the 10th day of growth cycles. The contents of 23 compounds were determined in methanolic extracts of biomass collected after 20 days of growth cycles using an HPLC method. All extracts contained the same four depsides (chlorogenic, neochlorogenic, rosmarinic, and cryptochlorogenic acids) and the same four simple phenolic acids (protocatechuic, vanillic, caffeic, and syringic acids). Chlorogenic and neochlorogenic acids were the predominant compounds in all extracts (max. 388.39 and 263.54 mg/100 g d.w.). The maximal total contents of all compounds were confirmed after feeding with cinnamic acid (5 mmol/L, point "0") and caffeic acid (10 mmol/L, point "0"), which caused a 2.68-fold and 2.49-fold increase in the contents of the estimated compounds vs. control cultures (603.03 and 558.48 mg/100 g d.w., respectively). The obtained results documented the efficacy of the precursor feeding strategy in enhancing the production of bioactive compounds in agitated cultures of A. × prunifolia and suggest a potential practical application value. [ABSTRACT FROM AUTHOR]