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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 aim of this research was to optimize the polysaccharides extraction process from the peels of Akebia trifoliate, and evaluate its in vitro antioxidant and hypoglycemic activity. The ultrasonic-assisted extraction process of polysaccharides from the peels of Akebia trifoliate was optimized using single-factor combined with orthogonal experiment. The antioxidant activity of polysaccharides from the peels of Akebia trifoliate was investigated by using DPPH radical scavenging rate and total reducing ability as the indicators. The hypoglycemic activity of polysaccharides from the peels of Akebia trifoliate was explored using α-glucosidase and α-amylase inhibition rate as the indicators. The results demonstrated that the optimal ultrasonic-assisted extraction process of polysaccharides from the peels of Akebia trifoliate was ultrasound power 280 W, ultrasound time 60 min, extraction temperature 50 °C, solid-liquid ratio 1:40 g/mL, respectively. Under the optimal process condition, the extraction rate of polysaccharides from the peels of Akebia trifoliate was 5.91%±0.20%. Within the measured concentration range, polysaccharides from the peels of Akebia trifoliate had the preferable DPPH radical scavenging and reducing ability. In addition, the IC50 values of polysaccharides from the peels of Akebia trifoliate and VC for scavenging DPPH free radicals were 0.329 and 0.077 mg/mL, separately. The IC50 values of polysaccharides from the peels of Akebia trifoliate for inhibiting α-glucosidase and α-amylase activity were 0.386 and 0.307 mg/mL, respectively. This research proved that the polysaccharides from the peels of Akebia trifoliate extracted by this optimal process had better in vitro antioxidant and hypoglycemic activity. [ABSTRACT FROM AUTHOR]

Copyright of Science & Technology of Food Industry is the property of Science & Technology of Food Industry Editorial Office 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 Science & Technology of Food Industry is the property of Science & Technology of Food Industry Editorial Office 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 Science & Technology of Food Industry is the property of Science & Technology of Food Industry Editorial Office 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 aim of this study was to establish a comparative analysis of the physicochemical and the thermal behavior by p-NMR for solid fat content (SFC), and differential scanning calorimetry (DSC) of shea butter (SB) from Burkina Faso, related to different traditional extraction processes. Thirty-seven samples obtained from different localities were collected from local producers and analyzed for chemical indexes, unsaponifiable matter content (UMC), color, yellow index, fatty acids (FA) profile, and thermal behavior. Results showed that stearic acid (34%−47.2%) and oleic acid (40.8%−51%) were the most abundant FA. Chemical quality variations among those samples were observed: UMC (3.0%±1.0%–12.0%±0.1%), peroxide value (4.6 ± 0.1 to 44.5 ± 0.2 meqO2/kg), iodine value by GC (50.5 to 64.2), free fatty acids (1.1%± 0.1%–9.7%±0.1%). Statistically significant relationships were observed between thermal properties and chemical parameters. The results were subjected to clustering and principal component analysis (PCA). Results showed that a great diversity exists among crude shea butter samples from Burkina Faso which is due to both regional variation and difference in extraction processes. A standardization of the process could help to improve the quality. [ABSTRACT FROM AUTHOR]

Copyright of China Condiment is the property of China Condiment 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 China Condiment is the property of China Condiment 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 aim of this research was to optimize the polysaccharides extraction process from the peels of Akebia trifoliate, and evaluate its in vitro antioxidant and hypoglycemic activity. The ultrasonic-assisted extraction process of polysaccharides from the peels of Akebia trifoliate was optimized using single-factor combined with orthogonal experiment. The antioxidant activity of polysaccharides from the peels of Akebia trifoliate was investigated by using DPPH radical scavenging rate and total reducing ability as the indicators. The hypoglycemic activity of polysaccharides from the peels of Akebia trifoliate was explored using α-glucosidase and α-amylase inhibition rate as the indicators. The results demonstrated that the optimal ultrasonic-assisted extraction process of polysaccharides from the peels of Akebia trifoliate was ultrasound power 280 W, ultrasound time 60 min, extraction temperature 50 ℃, solid-liquid ratio 1:40 g/mL, respectively. Under the optimal process condition, the extraction rate of polysaccharides from the peels of Akebia trifoliate was 5.91%±0.20%. Within the measured concentration range, polysaccharides from the peels of Akebia trifoliate had the preferable DPPH radical scavenging and reducing ability. In addition, the IC50 values of polysaccharides from the peels of Akebia trifoliate and VC for scavenging DPPH free radicals were 0.329 and 0.077 mg/mL, separately. The IC50 values of polysaccharides from the peels of Akebia trifoliate for inhibiting α-glucosidase and α-amylase activity were 0.386 and 0.307 mg/mL, respectively. This research proved that the polysaccharides from the peels of Akebia trifoliate extracted by this optimal process had better in vitro antioxidant and hypoglycemic activity.

To explore the extraction process of mycosporine amino acids (MAAs) and the antibacterial mechanism of Vibrio parahaemolyticus, the effects of liquid-solid ratio, extraction temperature and extraction time on the yield of MAAs were analyzed by single factor and response surface optimization tests, and MAAs were isolated and identified by silica gel column chromatography, HPLC and ESI-MS. The antibacterial mechanism of MAAs against Vibrio parahaemolyticus was analyzed by scanning and fluorescence microscopy to observe the leakage of intracellular nucleic acids and proteins, and DNA decomposition. The results showed that the optimal extraction parameters of MAAs of Ulva lactuca was liquid-solid ratio of 25 mL/g, extraction temperature of 40 ℃ and extraction time of 118 min, and the yield of MAAs was 179.34±3.91 mg/g. MAAs significantly destroyed the cell membrane of Vibrio parahaemolyticus, causing the leakage of nucleic acid and proteins, and promoting the breakdown of DNA in the bacteria. MAAs were isolated by silica gel column chromatography to obtain two fractions, and the fraction H2 was identified as shinorine, and the content in Ulva lactuca dry powder could reach 10.32 mg/g. This study provides a technical reference for the preparation of MAAs of Ulva lactuca and the biological control of Vibrio parahaemolyticus.

Objective: To extract Astragalus polysaccharides (APS) from Astragalus membranaceus using compound enzymes (including papain, pectinase and cellulase), and to analyze the effect of process conditions on APS extraction. Methods: Orthogonal experiments were conducted to determine the proportion of compound enzymes. The response surface method was used to optimize the conditions of extracting APS with compound enzymes. The optimal process condition was obtained, and the α-glucosidase-inhibiting effect of APS was evaluated by pNPG method. Results: For 5 g of Astragalus herbs, the optimal ratio of papain, pectinase and cellulase were 88000 U, 65000 U and 6000 U, respectively. The optimal extraction condition was as follows: time of 2.82 h, temperature at 60.34 ℃, pH of 5.11, and solid-liquid ratio of 1:34.46 g/mL. The yield of APS under the optimal condition was up to 22.79%±0.14%. The half-inhibition concentration (IC50) of APS for α-glucosidase was 7.42 μg/mL. Conclusion: The yield of APS by compound enzymes is significantly higher than that by single enzymes, and APS can effectively inhibit the activity of α-glucosidase.

To improve the comprehensive utilization value of the by-product residue of Pueraria thomsonii (kudzu), the extraction of conjugated phenolics from two common by-product residues (kudzu peel and kudzu dregs) was optimized. Infrared spectroscopy and scanning electron microscopy were used to compare the microstructure of the by-products of kudzu before and after extraction. The composition of the conjugated phenolics was characterized by LC-MS and the antioxidant activity of the two by-product residues was determined. The results showed that the optimal extraction conditions for the conjugated phenolics in the by-product kudzu dregs were as follows: Liquid to material ratio of 30:1 mL/g, hydrolysis time of NaOH solution of 4 h, and concentration of NaOH solution of 3 mol/L, and the yield of conjugated phenolics under these conditions was 2.54±0.070 mg/g. Accordingly, the optimal extraction conditions for conjugated phenolics in the by-product kudzu bark were 40:1 mL/g liquid/feed ratio, 5 h hydrolysis time in NaOH solution, and 3 mol/L concentration of NaOH solution, and the yield of conjugated phenolics under these conditions was 5.087±0.155 mg/g. The ester bond between phenolics and cellulose in the by-products, and the overall fiber structure was broken, which effectively facilitated the release of conjugated phenolics. The composition and content of conjugated phenolics in the two by-product residues differed greatly, with phenolic acids and flavonoids dominating the conjugated phenolics in kudzu peel, while flavonoids dominated the conjugated phenolics in kudzu dregs. The conjugated phenolics in both kudzu peel and kudzu dregs had strong antioxidant activity, and the antioxidant capacity of conjugated phenolics in kudzu peel was found better than that of kudzu dregs. In conclusion, the by-product residues of kudzu are rich in conjugated phenolics and have significant antioxidant activity, which is of good value for development and utilization.

Objective: To predict and validate the antidepressant pharmacodynamic components and mechanism of action of Hemerocallis citrina Baroni (H.citrina) and to determine the optimal extraction process of H.citrina. Methods: The key active ingredients, action targets and key signaling pathways of H.citrina were selected by network pharmacology. HPLC fingerprints of H.citrina were established, and similarity evaluation was conducted on 15 batches of H.citrina fingerprints from Suqian, Jiangsu Province. The common peak and the antidepressant active components in the fingerprints were identified. The key antidepressant index components of H.citrina were determined based on the results of the fingerprints and molecular docking. An orthogonal experiment was conducted to optimize the extraction process of H.citrina. Results: According to the result of topology analysis,10 key antidepressant active ingredients in H.citrina were identified, such as isoeugenol, rutin and hyperoside. The protein-protein interaction (PPI) network of H.citrina and depressive disorder targets were constructed and cluster analysis was applied, resulted to that the active ingredient targets on 10 key proteins such as SRC, TP53, HSP90AA1. Enrichment analysis of the gene ontology (GO) function and Kyoto Encyclopedia of genes and genomes (KEGG) signaling pathway for the key anti-inflammatory targets of H.citrina were applied and 10 key KEGG signal pathways were obtained, including the cancer pathway, PI3K/Akt signaling pathway, neuroactive ligand-receptor interaction signaling pathway and so on. The HPLC fingerprints of 15 batches of H.citrina were established, and 15 common peaks were obtained. Among them, four key components of antidepressant were identified: Nechlorogenic acid, rutin, hyperoside and quercetin. Molecular docking results showed that the docking binding energies of the above components to the target were all less than −5 kcal/mol. The transfer rate of the components (total flavonoids, neochlorogenic acid and rutin) and solid yield of H. citrina were used as indicators. The extraction process of H.citrina was optimized as the ratio of material-liquid 1:10 (g/mL), the extraction process was twice, and the extraction time was 1 hour. The optimized process resulted in a transfer rate of 72.12%±0.61% for total flavonoids, 68.11%±0.65% for neochlorogenic acid, 63.40%±1.59% for rutin, and a solid yield of 52.62%±0.15%. Conclusion: Through the organic combination of network pharmacology and fingerprint, the antidepressant index components from H.citrina were screened out for extraction technology research. The optimized H.citrina extraction process of H.citrina was stable and feasible, providing a theoretical basis for the development of research on H. citrina as an antidepressant functional food.

The objective of this study was to optimize the extraction process of total sterols from wild Pyracantha fortuneana leaves (WPFL), and explore their antioxidant and whitening activities. The yield of total sterols (WPFLTPS) was used as indicator, and the single factor experiment was used to investigate the effects of extraction solvent, solid-liquid ratio, ultrasonic temperature and ultrasonic time on the yield of WPFLTPS. Based on this, the orthogonal experimental design was used to optimize the extraction conditions. The DPPH (2,2-diphenyl-1-picrylhydrazyl), ABTS [2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)] and nitrite methods were used to evaluate the antioxidant activity of WPFLTPS in vitro. The whitening activity was evaluated by the inhibitory effect on tyrosinase. The results showed that for optimal extraction process of WPFLTPS, the extraction solvent was absolute ethanol, ultrasonic temperature was 50 ℃, solid-liquid ratio was 1:16 g/mL, and ultrasonic time was 25 minutes. Under these conditions, the yield of WPFLTPS was (11.00±0.03) mg/g. In the range of 0.5~5 mg/mL, WPFLTPS had strong scavenging effects on DPPH radicals, ABTS+ radicals and nitrite ions, as well as a strong inhibitory effect on tyrosinase, demonstrating a good dose-response relationship. This extraction process was stable and reliable for extracting WPFLTPS. The WPFLTPS can be used as a new, natural antioxidant and tyrosinase inhibitor in functional foods.

The objectives of this study were to optimize the ultrasonic-assisted flavonoid extraction process from PR and to establish fingerprints in order to analyze the spectrum–effect relationship of antioxidant activity. The ultrasonic-assisted flavonoid extraction process from PR was optimized using RSM, and the fingerprints of twenty-eight batches of flavonoids from PR were established using UHPLC. Meanwhile, the in vitro antioxidant activity of PR was evaluated in DPPH and ABTS free radical-scavenging experiments. Then, the peaks of the effective antioxidant components were screened using the spectrum–effect relationships. The results show that the optimal extraction yield of flavonoids from PR was 3.24 ± 0.01 mg/g when using 53% ethanol, a 1:26 (g/mL) solid–liquid ratio, and 60 min of ultrasonic extraction. Additionally, the clearance of two antioxidant indices by the flavonoids extracted from PR had different degrees of correlation and showed concentration dependence. Simultaneously, the similarity of the UHPLC fingerprints of twenty-eight batches of PR samples ranged from 0.801 to 0.949, and four characteristic peaks, namely peaks 4, 12, 21, and 24, were screened as the peaks of the components responsible for the antioxidant effect of PR using a GRA, a Pearson correlation analysis, and a PLS-DA. In this study, characteristic peaks of the antioxidant effects of PR were screened in an investigation of the spectrum–effect relationship to provide a scientific basis for the study of pharmacodynamic substances and the elucidation of the mechanism of action of the antioxidant effect of PR. [ABSTRACT FROM AUTHOR]

Objective: To predict and validate the antidepressant pharmacodynamic components and mechanism of action of Hemerocallis citrina Baroni (H.citrina) and to determine the optimal extraction process of H.citrina. Methods: The key active ingredients, action targets and key signaling pathways of H.citrina were selected by network pharmacology. HPLC fingerprints of H.citrina were established, and similarity evaluation was conducted on 15 batches of H.citrina fingerprints from Suqian, Jiangsu Province. The common peak and the antidepressant active components in the fingerprints were identified. The key antidepressant index components of H.citrina were determined based on the results of the fingerprints and molecular docking. An orthogonal experiment was conducted to optimize the extraction process of H.citrina. Results: According to the result of topology analysis,10 key antidepressant active ingredients in H.citrina were identified, such as isoeugenol, rutin and hyperoside. The protein-protein interaction (PPI) network of H.citrina and depressive disorder targets were constructed and cluster analysis was applied, resulted to that the active ingredient targets on 10 key proteins such as SRC, TP53, HSP90AA1. Enrichment analysis of the gene ontology (GO) function and Kyoto Encyclopedia of genes and genomes (KEGG) signaling pathway for the key anti-inflammatory targets of H.citrina were applied and 10 key KEGG signal pathways were obtained, including the cancer pathway, PI3K/Akt signaling pathway, neuroactive ligand-receptor interaction signaling pathway and so on. The HPLC fingerprints of 15 batches of H.citrina were established, and 15 common peaks were obtained. Among them, four key components of antidepressant were identified: Nechlorogenic acid, rutin, hyperoside and quercetin. Molecular docking results showed that the docking binding energies of the above components to the target were all less than -5 kcal/mol. The transfer rate of the components (total flavonoids, neochlorogenic acid and rutin) and solid yield of H. citrina were used as indicators. The extraction process of H.citrina was optimized as the ratio of material-liquid 1:10 (g/mL), the extraction process was twice, and the extraction time was 1 hour. The optimized process resulted in a transfer rate of 72.12%±0.61% for total flavonoids, 68.11%±0.65% for neochlorogenic acid, 63.40%±1.59% for rutin, and a solid yield of 52.62%±0.15%. Conclusion: Through the organic combination of network pharmacology and fingerprint, the antidepressant index components from H.citrina were screened out for extraction technology research. The optimized H.citrina extraction process of H.citrina was stable and feasible, providing a theoretical basis for the development of research on H. citrina as an antidepressant functional food. [ABSTRACT FROM AUTHOR]

The study was to enhance the feed value of chicory leaves. Through response surface methodology, the experiment optimized the extraction process of flavonoids from chicory leaves and evaluates their antioxidant activity. Based on single-factor experiments, the design and optimization of the Box-Behnken design were conducted with the response variable being the yield of flavonoids, to analyze the effects of the liquid-to-solid ratio, extraction temperature, and extraction time on the yield of flavonoids in chicory leaves. The results showed that the optimized conditions for the extraction of chicory leaf flavonoids were a liquid-to-solid ratio of 37.0 mL/g, an extraction time of 59.2 minutes, and an extraction temperature of 43 ℃. Under these conditions, the yield of chicory leaf flavonoids was 3.09%, which was basically consistent with the predicted value, indicating that this optimization method was reasonable and reliable. In vitro antioxidant activity tests showed that the scavenging ability of chicory leaf flavonoids on DPPH and ABTS+ radicals was concentration-dependent. The study suggests that chicory leaf flavonoids have strong in vitro antioxidant capacity and potential for feed additive development. [ABSTRACT FROM AUTHOR]

A low-cost method for the simultaneous extraction of alkaloids and water-insoluble flavonoids and esters from Coptis chinensis Franch. (Abbrev. C. chinensis) was explored to provide a reference for the production of green plant-based preparations and traditional Chinese medicine formula granules. A combined extraction method with the deep eutectic solvents (DESs) of choline chloride and urea (molar mass ratio of 1:2) and organic solvent ethanol was used, supplemented by ultrasonic-assisted extraction (ultrasonic power: 150 W; ultrasonic temperature: 60 °C; treatment time: 15 min). The extraction efficiency of the 50% DES (choline chloride and urea) aqueous solution for berberine, palmatine, jatrorrhizine, and magnoflorine was found to be the highest and was superior to traditional ultrasonic extraction and water bath reflux extraction methods. Furthermore, the flavonoids and esters from C. chinensis residue were extracted using ethanol. The results from high-performance liquid chromatography and gas chromatography–mass spectrometry indicated a high extraction efficiency overall. [ABSTRACT FROM AUTHOR]

This work used headspace solid-phase microextraction with gas chromatography–mass spectrometry (HS-SPME-GC–MS) to analyze the volatile components of hydrosols of Citrus × aurantium 'Daidai' and Citrus × aurantium L. dried buds (CAVAs and CADBs) by immersion and ultrasound–microwave synergistic-assisted steam distillation. The results show that a total of 106 volatiles were detected in hydrosols, mainly alcohols, alkenes, and esters, and the high content components of hydrosols were linalool, α-terpineol, and trans-geraniol. In terms of variety, the total and unique components of CAVA hydrosols were much higher than those of CADB hydrosols; the relative contents of 13 components of CAVA hydrosols were greater than those of CADB hydrosols, with geranyl acetate up to 15-fold; all hydrosols had a citrus, floral, and woody aroma. From the pretreatment, more volatile components were retained in the immersion; the relative contents of linalool and α-terpineol were increased by the ultrasound–microwave procedure; and the ultrasound–microwave procedure was favorable for the stimulation of the aroma of CAVA hydrosols, but it diminished the aroma of the CADB hydrosols. This study provides theoretical support for in-depth exploration based on the medicine food homology properties of CAVA and for improving the utilization rate of waste resources. [ABSTRACT FROM AUTHOR]

Copyright of Packaging & Food Machinery is the property of Packaging & Food Machinery Magazine 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.)

Commiphora gileadensis is a medicinal plant with a wide range of biological characteristics. Many medical diseases can be treated using the leaves of C. gileadensis, including bacterial infections, inflammatory illnesses, and wounds. As a result, the Soxhlet extraction method was used to extract the phenolic components and measure the recovery yields from C. gileadensis leaf. The impacts of the Soxhlet extraction parameters (extraction time 30–150 min, sample/solvent ratio 1:20–1:40 g/mL, and concentration of ethanol solvent 20–100% v/v) on the total flavonoid content (TFC), total phenolic content (TPC), and extraction yield were investigated using the one-factor-at-a-time (OFAT) technique. Fourier transform infrared spectroscopy (FTIR) and gas chromatography–mass spectroscopy (GC–MS) analyses have been employed to evaluate the extracts for the presence of various phytochemicals. According to the results, the C. gileadensis leafs ethanolic extract extracted via the Soxhlet process achieved the maximum yields at 90 min of extraction time, a feed/solvent ratio of 1:30 g/mL, and a 40% v/v ethanol concentration. These yields were: extraction yield = 23.20 ± 0.10% w/w, TPC = 59.93 ± 1.33 mg GAE/g d.w., and TFC = 19.65 ± 1.77 mg QE/g d.w.. Further, a total of 20 phenolic components with excellent antioxidant characteristics were found in the leaf extract of C. gileadensis extracted via the Soxhlet method. [ABSTRACT FROM AUTHOR]

Lonicera similis Hemsl. (L. similis) is a promising industrial crop with flowers rich in phenolic compounds. In this study, an ultrasound-assisted extraction (UAE) was designed to extract phenolic compounds from L. similis flowers (LSFs). A contrastive analysis on the phenolic compounds' yield and characterization and the antioxidant activity of the extracts at three harvest stages (PGS I, PGS II, and PGS III) are reported. The results indicate that the optimal conditions are a sonication intensity of 205.9 W, ethanol concentration of 46.4%, SLR of 1 g: 31.7 mL, and sonication time of 20.1 min. Under these optimized conditions, the TPC values at PGS I, PGS II, and PGS III were 117.22 ± 0.55, 112.73 ± 1.68, and 107.33 ± 1.39 mg GAE/g, respectively, whereas the extract of PGS I had the highest TFC (68.48 ± 2.01 mg RE/g). The HPLC analysis showed that chlorogenic acid, rutin, quercetin, isoquercitrin, and ferulic acid are the main components in the phenolic compounds from LSFs, and their contents are closely corrected with the harvest periods. LSF extracts exhibited a better antioxidant activity, and the activity at PGS I was significantly higher than those at PGS II and PGS III. The correlation analysis showed that kaempferol and ferulic acid, among the eight phenolic compounds, have a significant positive correlation with the antioxidant activity, while the remaining compounds have a negative correlation. Minor differences in extracts at the three harvest stages were found through SEM and FTIR. These findings may provide useful references for the optimal extraction method of phenolic compounds from LSFs at three different harvest periods, which will help to achieve a higher phytochemical yield at the optimal harvest stage (PGS I). [ABSTRACT FROM AUTHOR]

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.)

To explore the optimal extraction process of rosemary essential oil by atmospheric distillation, the experiment was conducted using different distillation times, liquid-solid material ratios, and sampling times for the hydrodistillation of fresh rosemary leaves with reflux extraction by steam distillation. The volatile components were analyzed and compared using headspace injection GC-MS. The extraction process was optimized using the response surface method to determine the best process conditions. All experiments were repeated three times. The results showed that the order of influence of various factors on the yield of rosemary essential oil was liquid-solid material ratio > sampling time > distillation time. The theoretical optimal extraction conditions were determined to be a distillation time of 3.96 hours, a liquid-solid material ratio of 1.50 mL/g, and a sampling time of 13:12, with a theoretical predicted yield of rosemary essential oil of approximately 1.551%. The results showed that the highest yield of rosemary essential oil was 1.543% after sampling time 13:10, liquid-solid ratio 1.50 mL/g and distillation for 4 h, with a relative error of 0.52% compared to the predicted value of 1.551%. The relative content of characteristic components met international standards. The study indicates that the atmospheric distillation extraction process of rosemary essential oil is stable and effective. [ABSTRACT FROM AUTHOR]

Copyright of Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica 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.)

Copyright of China Condiment is the property of China Condiment 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.)

Ginseng (Panax ginseng C.A. Mey) is known for its rich saponin compounds and tonic effects. To better utilize the medicinal value of ginseng, this study investigated the extraction process, components, free radical scavenging ability, and immunomodulatory activity of total saponins of ginseng fibrous roots. The response surface methodology was employed to optimize the extraction process of total saponins, and Q-Orbitrap high-resolution liquid chromatography–mass spectrometry (LC-MS) was used to identify the chemical constituents in the total saponins extract of ginseng fibrous roots (GRS). The results showed that the optimal extraction process was achieved with an ethanol concentration of 68%, a material–solvent ratio of 1:25 mL/g, and an extraction time of 20 min, yielding a total saponin content of 6.34% under these conditions. The extract contained four terpenoid compounds and four polyphenolic compounds. GRS exhibited considerable scavenging activity against DPPH and ABTS radicals, with IC50 values of 0.893 and 0.210 mg/mL, respectively. Moreover, GRS restored immune suppression in mice by increasing white blood cell, red blood cell, and neutrophil counts, and improving the lymphocyte. It also promoted immune system recovery, as evidenced by elevated serum levels of IL-2, IFN-γ, TNF-α, and IL-1β in mice. GRS is a natural compound with promising potential for developing antioxidants and immunomodulatory foods. [ABSTRACT FROM AUTHOR]

Auricularia auricular (A. auricula), a nutritious fungus and traditional medicinal resource, is known for melanin. This review aims to summarize the research progress on melanin in A. auricula, specifically focusing on biosynthesis, fermentation production, extraction processes, physicochemical characterization, biological functions, and applications. The biosynthesis of melanin in A. auricula primarily involves the oxidative polymerization reaction of phenolic compounds. To enhance melanin production, strategies such as deep fermentation culture, selection of optimal fermentation materials, and optimization of the culture medium have been employed. Various extraction processes have been compared to determine their impact on the physicochemical properties and stability of melanin. Moreover, the antioxidant and antibiofilm activities of A. auricula melanin, as well as its potential beneficial effects on the human body through in vivo experiments, have been investigated. These findings provide valuable insights into the application of A. auricula melanin and serve as a reference for future research in this field. [ABSTRACT FROM AUTHOR]

Inulin polysaccharide is a fructan-type plant polysaccharide widely found in nature, which possesses a variety of biological functions such as optimizing the structure of intestinal flora, prebiotic effects, regulating blood glucose and lipids, enhancing antioxidant capacity, and boosting immunity. As a natural herbal extract, inulin polysaccharide has significant research value and potential for application in animal production. As a feed additive, inulin polysaccharide can improve animal growth performance, feed utilization, and meat quality. The article reviews various extraction processes and biological functions of inulin polysaccharide in recent years, introduces its application in the production of pigs, chickens, ruminants, and aquatic animals, aiming to provide a reference for the application of inulin polysaccharide in animal production, and to offer ideas for the further promotion and application of inulin polysaccharide resources. [ABSTRACT FROM AUTHOR]

By-products with remarkable bioactive properties are formed in extraction processes of essential oils from plant materials. In present study, it was aimed to determine the concentration of individual phenolic and organic acid compounds by LC-MS/MS of the by-product (wastewater) collected after the essential oil isolation from Pelargonium graveolens L. and to determine some bioactive properties of this by-product. In addition, the chemical analysis and antibacterial activity of the essential oil extracted from P. graveolens were determined and the histo-anatomical characterization of the glandular trichomes in the leaf sample was performed. As a result, quercetin (95862.22 μg/kg), myricetin (59834.32 μg/kg) and rutin (36522.90 μg/kg) were the phenolic compounds determined in the highest concentrations in the by-product extracted using two different extraction techniques (non-hydrolysis and hydrolysis methods). Moreover, the individual organic acids of the by-product screened in LC-MS/MS was found to be 4487.17 mg/kg in total. When the essential oil component profile of the plant sample was examined, the citronellol (38.78%) compound was found to be dominant, and it was also detected that the essential oil had remarkable bioactive properties. In conclusion, it can be stated that both the essential oil obtained from P. graveolens and the by-product obtained during essential oil isolation can be considered as a source of some bioactive components in many different industrial applications. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Shenyang Pharmaceutical University is the property of Shenyang Pharmaceutical University 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 objective of this study was to optimize the extraction process of total sterols from wild Pyracantha fortuneana leaves (WPFL), and explore their antioxidant and whitening activities. The yield of total sterols (WPFLTPS) was used as indicator, and the single factor experiment was used to investigate the effects of extraction solvent, solid-liquid ratio, ultrasonic temperature and ultrasonic time on the yield of WPFLTPS. Based on this, the orthogonal experimental design was used to optimize the extraction conditions. The DPPH (2,2-diphenyl-1-picrylhydrazyl), ABTS [2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)] and nitrite methods were used to evaluate the antioxidant activity of WPFLTPS in vitro. The whitening activity was evaluated by the inhibitory effect on tyrosinase. The results showed that for optimal extraction process of WPFLTPS, the extraction solvent was absolute ethanol, ultrasonic temperature was 50 °C, solid-liquid ratio was 1:16 g/mL, and ultrasonic time was 25 minutes. Under these conditions, the yield of WPFLTPS was (11.00± 0.03) mg/g. In the range of 0.5~5 mg/mL, WPFLTPS had strong scavenging effects on DPPH radicals, ABTS+ radicals and nitrite ions, as well as a strong inhibitory effect on tyrosinase, demonstrating a good dose-response relationship. This extraction process was stable and reliable for extracting WPFLTPS. The WPFLTPS can be used as a new, natural antioxidant and tyrosinase inhibitor in functional foods. [ABSTRACT FROM AUTHOR]

Ginger oleoresins being rich in coloring, flavoring and other phytochemical compounds have strong potential for industrial applications. In this study, 5 different oleoresins' extraction methods are compared in terms of yield and phytochemical characterization of oleoresins. Petroleum ether exhibited the highest yield (5.51 ± 0.08%) among all selected methods. In terms of chemical characterization of extracted oleoresins, oleoresins yielded by supercritical fluid extraction (SCFE) exhibited the highest total phenolic content (TPC), Total f1avonoid content (TFC), total volatiles and antioxidant activity. SCF extracted oleoresins with best phytochemical profiling were further subjected to structural studies through fourier transform infrared (FTIR) spectroscopy and fatty acid profiling through gas chromatography attached with flame ionization detector (GC-FID). Several functional groups were detected through FTIR including alkane with the highest peak at 2934.0968 cm− 1 wave number indicating C-H bonding followed by ester with C = O stretching bond type at 1751.5953 cm− 1 wave number. Similarly, total 11 fatty acids were analyzed ranging from 3.00 to 25.30% concentration through GC-FID. Methyl palmitoleate was found in the highest concentration (25.30%) with 21.36 min. retention time while methyl butyrate was detected in the lowest amount (3.00%) with 2.18 min. retention time. Data was interpreted statistically and it was concluded that oleoresins extracted through SCFE exhibited a bit lower yield (3.98 ± 0.05%) but were found best in terms of purity and phytochemical characterization. Oleoresins' yield and quality can further be enhanced by optimizing the extraction conditions resulting in their better and more acceptable utilization by food and other pharmaceutical industries. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality 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.)

Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality 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.)

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.)

Ultrasound-assisted extraction is an interesting tool for obtaining bioactive compounds from plant matrices applicable as agricultural bio-inputs, as it increases the extraction efficiency, reducing the process time and the use of solvents. This technique uses ultrasonic waves to break down plant cell walls, releasing bioactive compounds quickly and effectively and promoting a sustainable path to obtaining bio-inputs. Accordingly, this research study reports pioneering results regarding the herbicidal and fungicidal potential of different extracts obtained from Senecio brasiliensis (samples from flowers, leaves, and stalks) and Solanum viarum (samples from fruits and roots), two weeds typically found in rural areas of South America. The fungicidal activity of the samples was tested on two fungi, i.e., Fusarium graminearum and Sclerotinia sclerotiorum, while the herbicidal action of the extracts was evaluated in pre-emergence tests in cucumber (Cucumis sativus) seeds. The successful results indicated a high antifungal and herbicidal potential of the extracts obtained for both weeds, with the inhibitory effect against both fungi achieving up to 82%, and the inhibition of C. sativus seed germination reaching 100% for all samples. [ABSTRACT FROM AUTHOR]

Despite being recognized as a specialty food in four Chinese provinces with established safety standards, Dendrobium officinale Kimura et Migo (Orchidaceae) leaf physicochemical indices overlook vital flavonoid glycoside components. Given the inconsistency in flavonoid quality under current standards, we devised a quantitative analysis targeting vicenin 2, vicenin 3, rutin, and isoviolanthin. Our analysis revealed significant seasonal variations, with harvests yielding the highest total content of these four flavonoid glycosides in February (1.6378 mg/g) and July (2.0642 mg/g). This finding provides a scientific basis for optimal collection timing, enhancing quality control and utilization. Furthermore, we optimized the extraction conditions (59.63 °C, 22.44 min, 1:37.91 g/mL solid-to-liquid ratio, 43.24 % ethanol) to maximize the flavonoid glycoside content. This study lays a foundation for refining D. officinale leaf quality standards and advancing related product development in China.

In this work, we describe the recovery of cellulose acetate (r-CA) polymer from waste cigarette butts (CBs) and their subsequent conversion into feedstock for 3D printing technology. The extraction process for CBs includes two stages: initial washes in water, followed by additional washes in ethanol. A final step involves a dissolution and reprecipitation process, resulting in the creation of a fine powder. The recovery polymer has been analysed and compared to commercial cellulose acetate (p-CA) and unsmoked cigarette filter (u-CA) to assess its purity and examine alterations in its physicochemical properties. The CA powder has also been plasticized with different biocompatible plasticizers to improve the mechanical properties of the CA. We analyze the rheological properties to identify the suitable composition as feedstock for 3D printing. [ABSTRACT FROM AUTHOR]

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.)

In order to optimize the steam distillation process of volatile components in Phoebe bournei and explore the differences, four parts(leaves, branches, trunks and roots) from the P. bournei test forest in Lechang City, Guangdong Province were used as materials to conduct single-factor tests and orthogonal tests by steam distillation, aims to investigate the influence of three factors(NaCl concentration, material-liquid ratio to solution and extraction time) on the yield of volatile components, determine the optimum process parameters. The extracts from four parts of P. bournei were determined by GC-MS to explore the content and differences of volatile components. The results showed that:(1) the optimal process combinations for leaves was NaCl concentration 45 g·L-1, material-liquid ratio 1∶6, and extraction time 5 h. The extraction rate was 0.056%, 110 volatile components detected. The top five fractions were beta-selinene, beta-eudesmol, bicyclogermacrene, aromandendrene and alpha-muurolene.(2) the optimal process combinations for branches was NaCl concentration 45 g·L-1, material-liquid ratio 1∶8, and extraction time 5 h. The extraction rate was 0.083%, 80 volatile components detected. The top five fractions were guaiol, guaiol acetate, agarospirol, gamma-eudesmol and delta-cadinene.(3) the optimal process combinations for trunks was NaCl concentration 30 g·L-1, material-liquid ratio 1∶8, and extraction time 5 h. The extraction rate was 0.323%, 64 volatile components detected. The top five fractions were agarospirol, gamma-cadinene, guaiol, gamma-eudesmol and verbenone.(4) the optimal process combinations for roots was NaCl concentration 30 g·L-1, material-liquid ratio 1∶9, and extraction time 5 h. The extraction rate was 1.025%, 69 volatile components detected. The top five fractions were agarospirol, gamma-cadinene, guaiol, gamma-eudesmol and verbenone.(5) these volatile components were major consisted of terpenes and alcohols, accounting for more than 80% of the total content. Only 15 volatile components were common among leaves, branches, trunks and roots. The composition of volatile components separated from leaves was significantly different compared with these from other materials. [ABSTRACT FROM AUTHOR]

Cirsium japonicum Fisch. ex DC. (CF) and Cirsium setosum (Willd.) MB (CS) are commonly used clinically to stop bleeding and eliminate carbuncles. Still, CF is mainly used for treating inflammation, while CS favors hemostasis. Therefore, the present study used UHPLC-MS to analyze the main chemical constituents in CF-CS extract. We optimized the extraction process using single-factor experiments and response surface methodology. Afterward, the hemostatic and anti-inflammatory effects of CF-CS extract were investigated by determining the clotting time in vitro, the bleeding time of rabbit trauma, and the induction of rabbit inflammation using xylene and lipopolysaccharide. The study of hemostatic and anti-inflammatory effects showed that the CF-CS, CF, and CS extract groups could significantly shorten the coagulation time and bleeding time of rabbits compared with the blank group (p < 0.01); compared with the model group, it could dramatically inhibit xylene-induced ear swelling in rabbits and the content of TNF-α, IL-6, and IL-1β in the serum of rabbits (p < 0.01). The results showed that combined CF and CS synergistically increased efficacy. CF-CS solved the problem of the single hemostatic and anti-inflammatory efficacy of a single drug, which provided a new idea for the research and development of natural hemostatic and anti-inflammatory medicines. [ABSTRACT FROM AUTHOR]

An HPLC-UV method with high sensitivity and good resolution, calculated by the principal component external standard method with correction factors and detailed methodological validation according to ICH guidelines, was developed for the accurate detection of impurities in three different extraction processes of rutin raw materials and their tablets, and the determination of impurity profiles by LC-MS/MS. In this study, nine impurities (>0.1%) were mainly isolated and identified, four of which were process impurities, and the other five were degradation products. The results of the correlation between impurity profiles and production processes showed that the impurity content of rutin tablets correlated positively with the impurity level of the raw materials used, which correlated significantly with the extraction process. The finished rutin under the alkali-dissolution and acid-sedimentation refining method had low purity and the highest impurity content. In contrast, the number of impurities and the total amount of impurities detected in rutin by the secondary recrystallization process with methanol washing were the lowest, and were mainly process impurities. This further indicates that generating degradation impurities could be avoided, and a suitable refining process could effectively reduce impurities. This study provides an essential basis for manufacturers to optimize the process parameters of rutin raw materials. [ABSTRACT FROM AUTHOR]

Copyright of Traditional Chinese Drug Research & Clinical Pharmacology is the property of Traditional Chinese Drug Research & Clinical Pharmacology Editorial Office 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.)

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.)

Acne is a chronic inflammatory skin disease with a recurring nature that seriously impacts patients' quality of life. Currently, antibiotic resistance has made it less effective in treating acne. However, Paris polyphylla (P. polyphylla) is a valuable medicinal plant with a wide range of chemical components. Of these, P. polyphylla saponins modulate the effects in vivo and in vitro through antibacterial, anti-inflammatory, immunomodulatory, and antioxidant effects. Acne is primarily associated with inflammatory reactions, abnormal sebum function, micro-ecological disorders, hair follicle hyperkeratosis, and, in some patients, immune function. Therefore, the role of P. polyphylla saponins and their values in treating acne is worthy of investigation. Overall, this review first describes the distribution and characteristics of P. polyphylla and the pathogenesis of acne. Then, the potential mechanisms of P. polyphylla saponins in treating acne are listed in detail (reduction in the inflammatory response, antibacterial action, modulation of immune response and antioxidant effects, etc.). In addition, a brief description of the chemical composition of P. polyphylla saponins and its available extraction methods are described. We hope this review can serve as a quick and detailed reference for future studies on their potential acne treatment. [ABSTRACT FROM AUTHOR]

[Objectives] This study was conducted to optimize the extraction process of total flavonoids from Penthonim chinense Pursh and compare their contents from different parts. [Methods] Single factor and orthogonal experiments were designed to optimize the extraction process of total flavonoids from P. chinense Pursh with the volume fraction of ethanol, the ratio of material to liquid, heating reflux extraction time and extraction times as factors, and the content of total flavonoids as the index. A verification test was carried out. The optimized extraction process was adopted to compare the contents of total flavonoids from different parts of P. chinense Pursh. [Results] The best extraction process was extracting the powder of P. chinense Pursh for 2.0 h with 20 times of 55% ethanol by reflux twice. Under this condition, the con-tents of total flavonoids were 3.63 %, 8.90%, 11.28%, and4.36% from stems, leaves, flowers and whole grass of P. chinense Pursh, respectively. [Conclusions] The process is reasonable, feasible and stable, and can effectively extract total flavonoids from P. chinense Pursh. The contents of total flavonoids from different parts of P. chinense Pursh were quite different, and the value was higher in the leaves and flow-ers, so the proportions of leaves and flowers should be paid attention to in the industrial processing of P. chinense Pursh. [ABSTRACT FROM AUTHOR]

Using Rhodotorula glutinis and Chlorella vularis sludge as raw material, the extraction process of carotenoids from yeast and algae was optimized through single factor and response experiments, and the in vitro antioxidant activity of carotenoids from yeast and algae was investigated. The results showed that the optimal ionic liquid for yeast and algal wall breaking was 1-butyl-3-methylimidazole chloride (BMIMCl), and the optimal extraction process for carotene from yeast and algal sludge was 1 mol/L ionic liquid concentration, pre-treatment temperature of 53 °C, and pre-treatment time of 57 min. Under this condition, the extraction amount of carotene from yeast and algae was 1.311 mg/g. When the mass concentration was 30 μg/mL, the scavenging rates of DPPH free radical, ·OH free radical and ABTS+ free radical were 82.3%, 37.6% and 86.8%, respectively, and the reducing power was 0. 289, showing good antioxidant activity. The yeast and algal sludge treated with BMIMCl had a higher content of extracted carotenoids and better antioxidant activity. [ABSTRACT FROM AUTHOR]