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Archaeological textile and paper materials shed light on cultural studies in different fields. In this study, a composite textile material and 2 printed Biblical artifacts of the 19th c., found during the excavation of the Balatlar Building Complex were investigated. The building complex, also known as the Balatlar Church or Mithridates Palace, is an imperial hamam complex belonging to the Roman Period, located in the Ada Street of Sinope province in the north of Turkey. It was found that different materials such as metal yarn, paper used under embroidery, and decorative beads used on textile material were used in the textile fragment recovered from tomb VIII of the Balatlar Building Complex. The investigation concerned the fiber types and dyestuffs for textile material, paper types and dyestuffs used for biblical artifacts by using non-destructive and microanalysis methods for these unique heritage objects. Attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), Optical microscope (OM), Digital Microscope (DM), Scanning Electron Microscopy with Energy Dispersive X-Ray Analysis (SEM-EDX) and High-Performance Liquid Chromatography -Diode Array Detector (HPLC-DAD) was used. It was determined that the textile find consists of two different fabrics, the main fabric, and the lining, and the dye that gives the main fabric its red color is the root dye (Rubia tinctorum L.). Also, Alizarin and madder (Rubia tinctorum L.) was determined as a plant source. It has been established that only the pattern threads are silk threads. HPLC-DAD chromatograms has been analyzed of paper pieces of the, written and unwritten sides, paperboard and leather sides archaeological L.(Large) Bible and S. (Small) Bible books. It was concluded that natural dyestuffs were not used in the production of the paper and leather parts of the L.Bible and S.Bible books. For the written text Iron (III)-gallic acid binary complex vibration bands were detected. Documentation and research studies conducted on 2 discovered Biblical artifacts have shown that biological degradation has occurred on the surface of the artifact. As a result of microscopic examination, it was found that the cover part of the L.Bible was made of cardboard and there were remnants of gray side paper. Remnants of leather-prepared binding were found on the surface of S.Biblical artifact. [ABSTRACT FROM AUTHOR]

The aim of this review is to provide a comprehensive overview of the large variety of phenolic compounds that have to date been identified in a wide range of monofloral honeys found globally. The collated information is structured along several themes, including the botanical family and genus of the monofloral honeys for which phenolic constituents have been reported, the chemical classes the phenolic compounds can be attributed to, and the analytical method employed in compound determination as well as countries with a particular research focus on phenolic honey constituents. This review covers 130 research papers that detail the phenolic constituents of a total of 556 monofloral honeys. Based on the findings of this review, it can be concluded that most of these honeys belong to the Myrtaceae and Fabaceae families and that Robinia (Robinia pseudoacacia, Fabaceae), Manuka (Leptospermum scoparium, Myrtaceae), and Chestnut (Castanea sp., Fagaceae) honeys are to date the most studied honeys for phenolic compound determination. China, Italy, and Turkey are the major honey phenolic research hubs. To date, 161 individual phenolic compounds belonging to five major compound groups have been reported, with caffeic acid, gallic acid, ferulic acid and quercetin being the most widely reported among them. HPLC with photodiode array detection appears to be the most popular method for chemical structure identification. [ABSTRACT FROM AUTHOR]

This paper includes the results of the first study about the phenolic characteristics and antimicrobial analyses of Geranium ibericum subsp. jubatum species found in Turkey. In the present work, the phenolic contents of different parts of the G. ibericum (flower, root, leaf) were determined with high-performance liquid chromatography (HPLC)--DAD (diode-array detector) and liquid chromatography (LC)--MS/MS (mass spectrometry). The following phenolic compounds were investigated: catechin, protocatechuic acid, gallic acid, ellagic acid, chlorogenic acid, 4-hydroxybenzaldehyde, p-coumaric acid, rutin, naringenin, kaempferol. Based on the results obtained, the roots and flowers of the plant are found to be very rich in ellagic acid (3473.57 µg g-1 dry plant) and catechin (2228.76 µg g--1 dry plant). The amount of chlorogenic acid (54.570 µg g--1 dry plant) is also high in the roots. The amounts of protocatechuic acid (122.5 µg g-1 dry plant) and gallic acid (725.34 µg g--1 dry plant) are high in the leaves. In addition, the total extract of G. ibericum obtained from leaf, flower, and root was tested against 6 gram-negative bacteria and Candida albicans. The G. ibericum extract was nearly as effective as commercial antibiotics at some concentrations (500-750 µg µL-1) for Acinetobacter baumannii, Klebsiella pneumonia, Proteus mirabilis, and Bacillus cereus. [ABSTRACT FROM AUTHOR]

• This is the first report on phenolics and biological activity of C. oppositifolia and S. cilicius. • The plant extracts possessed significant antioxidant and enzyme inhibitory activity. • Kaempferol and quercetin were identified as major flavonoids in the extracts. • Protocatechuic acid and gallic acid were identified as major phenolic acids in the extracts. • The plant extracts could be potential sources of bioactive molecules. In the paper, the phenolic compounds and biological activity of Corydalis oppositifolia DC. and Senecio cilicius Boiss., the endemic plants growing in Turkey, were investigated for the first time. The ethanol extract of C. oppositifolia exhibited more potent antimicrobial activity while the ethanol extract of S. cilicius exhibited the highest radical scavenging activity on ABTS (81.4±1.1a mg TE g−1 extract) and DPPH (23.4±0.2a mg TE g−1 extract). In C. oppositifolia , the highest total flavonoid and phenolic acid contents were found to be in the ethanol (94.2±3.5a mg QE g−1 extract) and methanol (320.5±3.3c mg GAE g−1 extract) extracts, respectively. In S. cilicius , the highest total flavonoid and phenolic acid contents were found to be in the methanol (56.9±0.9c mg QE g−1 extract) and ethanol (568.0±3.3a mg GAE g−1 extract) extracts, respectively. The ethanol extract of C. oppositifolia has the most prominent activity against α-amylase, AChE and BChE whereas the methanol extract of this plant displayed the highest inhibitory activity against α-glucosidase. HPLC analysis of the ethanol extracts revealed that the major flavonoids were kaempferol and quercetin whereas the major phenolic acids were protocatechuic acid, gallic acid, gentistic acid and 2,4-dihydroxybenzoic acid. The findings suggested that the plants and their extracts have the potential to be used in the treatment of diseases such as diabetes and Alzheimer's diseases. [ABSTRACT FROM AUTHOR]

The present study was designed to determine the phenolic constituents, antioxidant, and enzyme inhibition activities of aerial parts and bulbs of Allium lycaonicum (family Amaryllidaceae). Extracts were prepared by maceration and Soxhlet/infusion using hexane, methanol, and water as extraction solvents. Generally, extracts from the aerial parts showed higher total phenolic and individual components and antioxidant activity than their respective bulb extracts. Maceration with water was the best to extract total phenolic content from the aerial parts (29.00 mg gallic acid equivalents (GAE)/g), while the Soxhlet extraction with hexane (22.29 mg GAE/g) was the best for the bulb. Maceration with methanol recovered the highest total flavonoid content from both the aerial parts (41.95 mg (rutin equivalents (RE)/g) and bulb (1.83 mg RE/g). Polar extracts of aerial parts were characterized by higher abundance of kaempferol-3-glucoside (≤20,624.27 µg/mg), hyperoside (≤19,722.76 µg/g), isoquercitrin (≤17,270.70 µg/g), delphindin-3,5-diglucoside (≤14,625.21 µg/g), and rutin (≤10,901.61 µg/g) than the bulb. Aerial parts' aqueous extract, prepared by maceration, exerted the highest anti-ABTS (2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) radical activity (64.09 mg trolox equivalents (TE)/g), Cu++ (83.03 mg TE/g) and Fe+++ (63.03 mg TE/g) reducing capacity while that prepared by infusion recorded the highest anti-DPPH (2,2-diphenyl-1-picrylhydrazyl) radical (31.70 mg TE/g) and metal chelating (27.66 mg EDTAE/g) activities. The highest total antioxidant activity (1.46 mmol TE/g) was obtained by maceration of the bulb with water. Extracts obtained by organic solvents showed remarkable enzyme inhibition properties against the tested enzymes. Soxhlet extraction of the bulb with hexane and methanol recorded the highest acetylcholinesterase inhibition (4.75 mg galanthamine equivalents (GALAE)/g) and tyrosinase inhibition (139.95 mg kojic acid equivalents/g) activities, respectively. Extracts obtained by maceration of the bulb with methanol and the aerial parts with hexane exerted the highest glucosidase inhibition (3.25 mmol acarbose equivalents/g) and butyrylcholinesterase inhibition (20.99 mg GALAE/g) activities, respectively. These data indicated that A. lycaonicum is a source of bioactive molecules with potential antioxidant and enzyme inhibition properties. Nonetheless, the extracts obtained through various solvents and extraction techniques showed variations in their phytoconstituent composition and biological properties. [ABSTRACT FROM AUTHOR]

The aim of this study was to analyze the total phenolic content, phenolic profile, and antioxidant activity of honey, bee pollen, and propolis samples from Turkey's Black Sea Region. The total phenolic content of these bee products was found using Folin–Ciocalteu's method, and their antioxidant capacity was found using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) and cupric ion reducing antioxidant capacity (CUPRAC) assays. Phenolic compounds of honey samples were characterized by high-performance liquid chromatography coupled to a photodiode array detector and mass spectrometer (HPLC–DAD–ESI-MS), while phenolic compounds of bee pollen and propolis samples were quantified ultra-fast liquid chromatography (UFLC). The total phenolic values for honey, bee pollen and propolis were 6.32–18.21 mg GAE/100 g, 547.64–769.4 mg GAE/100 gr, and 6096.1–11,564 mg GAE/100 gr, respectively. DPPH and CUPRAC values of honey, pollen and propolis were 11.05–21.38% and 0.38–1.48 µmol Trolox/g; 24.67–38.63% and 0.03–0.05 mmol Trolox/g; 11.81–34.12% and 0.47–0.89 mmol Trolox/g, respectively. About 30 different phenolic compounds were identified as quantitative. Our findings have shown that all bee products examined in the study are found to contain gallic acid, naringenin, and caffeic acid. In terms of total phenolic content and antioxidant activity, the bee product extracts were ranked as follows: propolis > bee pollen > honey. The high concentration of phenolic compounds in propolis explains its remarkable antioxidant effect. [ABSTRACT FROM AUTHOR]

Rosa damascena Mill. is commercially the most important rose species used to produce essential oils. The plants of this species, cultivated in the district of Western Macedonia (Greece) for rose oil production, originated from indigenous genotypes but also nurseries abroad, mainly from Bulgaria. The present study investigated the genetic relationship between nine genotypes of R. damascena from Greece, one genotype from Turkey, three genotypes from Bulgaria and three genotypes from France using the molecular markers ISSR and SCoT. Also, the rooting ability of shoot cuttings from these nine genotypes was investigated by applying 2 g/L of the rooting regulator K-IBA. In addition, petals were chemically analyzed using GC-MS and LC-MS to identify the compounds that are the main components of the rose oil. The nine rose genotypes of R. damascena, cultivated in Greece, one from Turkey and one of the three genotypes from Bulgaria were clustered in one clade in the dendrogram. The other two genotypes from Bulgaria were clustered in a separate clade that demonstrated the existence of genetic diversity among the three Bulgarian genotypes, while the French genotypes were clustered in a third clade. The shoot cuttings rooted relatively easily (55–70%) with the application of K-IBA, without any significant differences among the nine genotypes. Large variation was observed among the nine genotypes in the main volatile compounds of the flower petal extracts, which are related to rose oil components. For these compounds, the concentrations in μg/g of the fresh petal weight were 2-phenylethylalcohol (1148.35–2777.19), nerol (27.45–64.93), citronellol (88.45–206.59), geraniol (69.12–170.99) and nonadecane (209.27–533.15). Of the non-volatile compounds, gallic acid was the most abundant phenolic acid in the petal extracts of the nine genotypes (0.28–0.82 μg/g), while for the flavonoids, quercetin and kaempferol variations of 0.35–1.17 μg/g and 0.26–2.13 μg/g were recorded, respectively. [ABSTRACT FROM AUTHOR]

The physico‐chemical properties, phytochemicals, mineral contents of tobacco (Nicotiana tabacum L.) seeds grown at Samsun province in Turkey were evaluated. The oil contents of tobacco seeds ranged from 20.6% (control) to 29.0% (microwave‐roasted). L*, a* and b* values of tobacco seeds ranged from 32.38 to 35.61; from 6.32 to 6.78; from 13.72 to 14.27, respectively. Total phenolic contents of tobacco seed extract and oils were reported between 31.02 (oven‐roasted) and 34.42 mg GAE/100 g (microwave‐roasted) to 4.60 (microwave‐roasted) and 6.45 mg GAE/100 g (oven‐roasted), respectively. Total flavonoid values of raw and roasted tobacco seed extract and oils were determined between 26.62 (oven) and 67.10 mg/100 g (control) to 21.57 (control) and 44.71 mg/100 g (microwave‐roasted), respectively. Gallic acid, 3,4‐dihydroxybenzoic acid and catechin are the predominant phenolic components of raw and roasted tobacco seed oils. The amounts of oleic and linoleic acid in raw and roasted tobacco seed oils ranged from 10.23% (oven‐roasted) to 12.48% (control) and 73.72% (control) to 76.63% (oven‐roasted), respectively. The abundant elements found in seeds were K, P, Ca, Mg, S and Fe. The mineral amounts of the roasted seeds were found higher than that of the control. The highest increase was detected in oven roasted tobacco seeds. [ABSTRACT FROM AUTHOR]

Copyright of Academic Food Journal / Akademik GIDA is the property of Sidas Medya Ajans Tanitim Danismanlik Ltd. Sti 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.)

This study aimed to determine in vitro antioxidant and cytotoxic activities of acetone and water extracts obtained from Helicrysum noeanum, Onosma bozakmanii, and Sideritis amasiaca. We tested their total phenol and flavonoid content and analyzed their 14 phenolic compounds using HPLC method. Cinnamic acid, gallic acid, protocatechuic acid and quercetin were phenolics found in all extracts. Acetone extract of S. amasiaca was the experiment containing the most phenolic compounds by containing 11 of them. While the highest total phenol content belonged to water extract of S. amasiaca (189.37 µg gallic acid equivalent/mg extract), water extract of O. bozakmanii had maximum total flavonoid rate (13.16 µg quercetin equivalent/mg extract). Acetone and water extracts of S. amasiaca showed higher DPPH scavenging (IC50: 43.40 and 18.71 mg/L, respectively) and metal chelating (IC50: 62.26 and 61.32 mg/L, respectively) activities compared to other plants. When viability rates of human cervical cancer cells (HeLa) treated with the extracts were investigated, the experiment with the highest cytotoxic effect was acetone extract of S. amasiaca (IC50: 45.10 mg/L). Overall, our data showed that H. noeanum, O. bozakmanii and especially S. amasiaca are important natural antioxidant sources. They can be used in pharmacology thanks to their essential phytochemicals. [ABSTRACT FROM AUTHOR]

The aim of this study was to elucidate the potential of the flora of Turkey by investigating the phytochemical properties of the endemic plant species Bolanthus ortegioides of the family Caryophyllaceae. The identity of the plant was validated through a phylogenetic approach with DNA barcoding using the internal transcribed spacer [ITS] region. Methanolic extract of B. ortegioides was examined by HPLC, and the total phenolic content was measured. In addition, pBluescript II SK(+) plasmid DNA cleavage was induced by ultraviolet (UV) photolysis of hydrogen peroxide (H2O2), and the activity of the methanolic extract of B. ortegioides against oxidative DNA damage was examined. The total phenolic content of the extract was 5.6 ± 0.25 µg (gallic acid equivalent [GAE])/mg. Of 15 phenolic compounds analysed by HPLC, vanillic acid was found to be a major compound. Chlorogenic, caffeic, epicatechin, p-coumaric, ferulic, rutin and chicoric acids were also detected. The results showed that B. ortegioides methanolic extract offered moderate protection against DNA damage. [ABSTRACT FROM AUTHOR]

The Rosa L. is one of the widely grown plants in the world and its flowers and fruits has been used in different parts of the world for centuries. Wild grown Rosa plants is one of the most important element of the natural landscape and used as rootstock for roses for centuries as well. In this study the main flower, shrub and fruit characteristics of a large number of Rosa canina L. and Rosa dumalis Bechst. genotypes naturally found in Ardahan province of Turkey has been studied. All plants found very health conditions and indicated their strong defense mechanism of the genera to harsh abiotic and biotic conditions. The majority of genotypes had attractive flowers. The genotypes exhibited fruit mass between 2.81 g to 4.60 g. SSC (soluble solid content), vitamin C, total phenolic, total flavonoid, total carotenoid, and total anthocyanin content of the genotypes ranged from 15.8-20.6%, 502-714 mg per 100 g FW (fresh weight), 405-507 mg gallic acid equivalent per 100 g FW, 1.02-2.00 mg per g FW, 8.40-13.30 mg per g FW and 4.35-6.98 mg cyanidin-3-glucoside equivalent per liter, respectively. Antioxidant activity was determined between 22.3-30.9 mg ascorbic acid equivalent per g fresh weight. Chlorogenic acid was the major phenolic acids in fruits of Rosa ecotypes. Our results indicated promising perspectives for usage of R. canina and R. dumalis fresh fruits studied with considerable levels of bioactive compounds. [ABSTRACT FROM AUTHOR]

The study aimed to determine the total phenol content of the extracts prepared with different solvents (70%methanol, ethyl acetate, 5% infusion) from the aerial parts of the I. oculus-christi, as well as to evaluate the antioxidant capacity and antimicrobial activity of the plant and to determine the main components responsible for the effect. The total phenolic content of the extracts prepared from the aerial parts of I. oculus-christi was calculated in gallic acid equivalents and the total phenolic content of the species was found to be in the range of 23.8-75.3 mg GAE/g. The highest total phenol content calculated as gallic acid equivalent was detected in the 5% infusion sample. The antioxidant activity of I. oculus-christi was also tested using DPPH' free radical scavenging in vitro assay (IC50: 0.092-1.03 mg/mL). The 5% infusion of the plant was shown to be the most effective extract in the antioxidant activity test performed using the DPPH' technique. The findings revealed that there is a correlation between total phenol content and antioxidant activity, as numerous research as suggested. By using the microdilution method, extracts from the aerial parts of I. oculus-christi were tested against Candida strains, and the MIC value for C. utilis was found to be 0.03 mg/mL in 5% infusion and ethyl acetate extracts. In terms of evaluating the biological effects obtained, the chemical composition of extracts was analyzed by HPLC-MS/MS, and the main components (5-caffeoylquinic acid, 1,5-dicaffeoylquinic acid, luteolin/kaempferol, apigenin, and rutin) were determined. [ABSTRACT FROM AUTHOR]

The oleaster (Elaeagnus angustifolia L.) plant grown in three different locations in Nevşehir, Turkey was analyzed to determine its phenolic component profile, total phenolic compound, total carotenoid, total flavonoid, and antioxidant capacity values. Ultrasonic extraction of the oleaster's flour, shell, core, flower, and leaf parts was carried out under solvent and acidic hydrolysis conditions using eight different polarity solvents (water, methanol, ethanol, acetone, ethyl acetate, butanol, petroleum ether, and hexane). The phenolic component profiles were determined using high-performance liquid chromatography with diode array detector (HPLC–DAD), and the main phenolic components in the oleaster samples were gallic acid, catechin, and their derivatives. At the same time, antioxidant properties of oleaster samples were evaluated by Folin–Ciocalteu (FC), ABTS, FRAP, DPPH, and CHROMAC methods. Various parts of oleaster, whose phenolic component content was determined in this study, are thought to be a natural source that can be used against degenerative diseases in future studies. [ABSTRACT FROM AUTHOR]

This study determined the antimicrobial and antioxidant activities of chloroform, ethyl acetate, methanol, and water extracts of the Viburnum opulus (V. opulus) plant. V. opulus (Gilaburu) was collected from Ahırdağı northern slope, Kırka Town, Afyonkarahisar region, and its leaves, branches, and fruit parts were dried and powdered at room temperature. The total phenolic content was compared with the gallic acid standard, the total flavonoid content with the quercetin standard, and the iron chelating effect with the EDTA standard. All extracts were evaluated for antimicrobial activity against Escherichia coli, Staphyllococcus aureus, and Candida glabrata strains by the agar well diffusion method. Gilaburu is widely used in Turkey, especially in alternative medicine. It has been determined that the fruit part of the plant has better antimicrobial properties, and the amount of phenolic compounds increases in more polar solvents. In conclusion, the use of Gilaburu as a medicinal drug can be achieved with new research on bioactive substances, especially in fruit extract. [ABSTRACT FROM AUTHOR]

In this study, Daedalea quercina (L.) Pers., Hydnum repandum L., Inonotus radiatus (Sowerby) P. Karst., Omphalotus olearius (DC.) Singer, and Schizophyllum commune Fr. hexane and methanol extracts were subjected to the spectrophotometric assays for antioxidant and enzyme inhibitory activities, which are linked with human diseases that are very prevalent in recent years. Additionally, phenolic compounds of the mushrooms were quantified by HPLC–DAD. The best antioxidant activity was found in H. repandum methanol extract (IC50: 12.04 ± 0.24 µg/mL) in the β-carotene-linoleic assay; I. radiatus methanol extract in DPPH• (81.22 ± 0.50%), ABTS•+ (IC50: 73.47 ± 0.18 µg/mL), and CUPRAC (A0.50: 88.21 ± 0.02 µg/mL) assays; S. commune hexane extract (53.36 ± 0.89%) in the metal chelating assay. O. olearius hexane extract was found as the best inhibitor against AChE (71.58 ± 0.28%) and BChE (67.30 ± 0.15%). When I. radiatus methanol (95.88 ± 0.74%) and H. repandum hexane (95.75 ± 0.16%) extracts showed close α-amylase inhibitory activity to acarbose (96.68 ± 0.08%), D. quercina methanol extract (70.79 ± 0.34%) had higher α-glucosidase inhibitory activity than acarbose (67.01 ± 2.28%). Among 16 phenolic compounds analyzed, gallic acid (0.02 ± 0.01–0.23 ± 0.01 µg/g) was detected in all studied mushrooms. This study provides that investigated mushrooms can be used for further research, which can lead to the development of new natural remedies to alleviate complications related to oxidative stress, diabetes, and neurological diseases. [ABSTRACT FROM AUTHOR]

Oak molasses, called "Gezo," have been produced by the local people of Southeastern Anatolia. In this study, the ethnobotanical characteristics, production stages, health effects, and chemical composition of Gezo were determined. Traditional Gezo molasses is produced from the acorn of Quercus brantii Lindl. The survey was carried out in seven provinces with large populations. Molasses samples were collected from local producers in the region alongside the local names, usage, sorting, and grading methods used by the local people. The total contents of phenolics and flavanoids were found to vary between the range of 1.60-2.56 mg gallic acid equivalents (GAE) and 0.62-0.72 mg rutin (RE) per g of Gezo molasses, respectively. Gezo displayed scavenging activity against DPPH radicals ranging from 7.57 to 9.44 µM Trolox/g. The CUPRAC assay results showed that molasses also possessed reducing power activity with a value of 8.57-10.20 µM Trolox/g. Gezo is typically consumed by local people as a breakfast food. However, it is also used for medical purposes to treat bronchitis, cough, asthma, and diabetes. The region's oak species are used by locals for fuel, feed, handicrafts, and games. [ABSTRACT FROM AUTHOR]

The present study was designed to determine the antioxidant potential of extracellular and intracellular metabolites of 130 macro/microfungi isolated from different parts of Turkey. To decide precisely and accurately, firstly, the sample ratio in a 2,2-diphenyl-1-picrylhydrazyl (DPPH) reaction mixture, culture medium, cultivation mode and extraction method of antioxidants from biomass were optimized. After optimization studies, a screening study was performed under the conditions of; potato malt peptone medium; ten days at 25°C under static cultivation mode; sample : DPPH ratio as 0.1 : 2.9 (3.33%); and microwave application for extraction of antioxidants from biomass. In the screening stage, culture liquid extracts of the vast majority of the isolates (80.77%) exhibited higher scavenging activity value than mycelial biomass extracts. Among 130 fungal isolates, six isolates (Epicoccum nigrum, Suillus collitinus, Hypomyces chrysospermus, Omphalotus olearius, Inonotus hispidus, and Pleurotus eryngii) and one isolate (Omphalotus olearius) were selected for further investigation of their extracellular and intracellular antioxidant metabolites, respectively. The selected fungal isolates had scavenging activities ranging from 50.35 to 100.00% and had phenolics ranging from 0.80 to 4.62 gallic acid equivalent mg/mL. After time-dependent DPPH radical-scavenging activity and extraction yield studies, the selected isolates were evaluated for their antioxidant activity using six different methods. As a result, Hypomyces chrysospermus was determined as the best isolate, according to high capabilities in all assay methods, except for lipid peroxidation, which was moderate. Mycelial biomass extract of the Omphalotus olearius gave impressive results for ABTS radical-scavenging activity, β-carotene bleaching and inhibition of lipid peroxidation. [ABSTRACT FROM AUTHOR]

In this study, antioxidant activity and total phenolics in fruit flesh and fruit flesh + skin tissue of local apple cultivars encountered along the coastal zone of Northeastern Anatolia Region (Turkey) and 5 standard cultivars were determined. In local cultivars, antioxidant activities (µmol Trolox equivalent (TE) antioxidant g fresh weight (fw)-1) varied between 0.17-1.70 in fruit flesh and between 0.35-1.55 in fruit flesh + skin tissue; in standard cultivars, the values varied between 0.24 ('Royal Gala') and 0.29 ('Granny Smith' and 'Pink Lady') in fruit flesh and between 0.27 ('Jonagold') and 0.61 ('Royal Gala') in fruit flesh + skin tissue. In local cultivars, total phenolics (Gallic acid equivalent (GAE) kg fw-1) varied between 53.26-00.54 in fruit flesh and between 89.32-406.91 in fruit flesh + skin tissue; the values in standard cultivars varied between 56.30 ('Royal Gala') and 124.64 ('Jonagold') in fruit flesh and between 102.73 ('Summerred') and 198.72 ('Jonagold') in fruit flesh + skin tissue. Present findings revealed that local cultivars generally had 3-4 times greater antioxidant activity and total phenolics than the standard cultivars. Fruit flesh + skin tissue generally had greater antioxidant activity and total phenolics than the fruit flesh alone. However, the local apple cultivar of 'Hemşin Elması' had greater values of both parameters in fruit flesh than in fruit flesh + skin tissue. [ABSTRACT FROM AUTHOR]

This study investigates the phytochemical composition, antimicrobial, and antioxidant potential of oregano flowers (Origanum onites L.) cultivated in Turkey. Thirty two compounds were identified in essential oil (4.12%) and carvacrol (48.22%) was found to be the major component. The essential oil was tested against different foodborne pathogens, as it exhibited pronounced antimicrobial effect only against Staphylococcus aureus in the concentrations 0.05-1.15 mg/ml. The total phenolic content recalculated as gallic acid (GAE) to dry weight (dw) and the total flavonoid content expressed as quercetin (QE) to dw were determined in 95 and 70% ethanol extracts. In addition, the antioxidant activity of both extracts were evaluated by the methods 2,2-diphenyl-1-picrylhydrazyl, 2,2'azinobis(3) ethylbenzthiazoline-6-sulphonic acid, ferric reducing antioxidant power assay and modified cupric reducing antioxidant capacity. The highest values of total phenolic and the total flavonoid were found in 70% ethanol extract 29.54 mg GAE/g dw and 5.16 QE/g dw, respectively. In addition, the amino acid composition characterised this plant as a natural source of essential and non-essential amino acids. [ABSTRACT FROM AUTHOR]

There is an increasing trend to find novel sources of products with high antioxidant capacity and wild fruits are very good examples for these sources. In this study, fruits of Berberis vulgaris and Berberis crataegina, naturally grown in Bayburt province of Turkey, were tested for their physicochemical features, antioxidant capacities, phenolic compound profiles, and antimicrobial activities. The physicochemical analysis of the fruits revealed that the dry matter content, ash content, pH, and aw values were between 28.47% and 41.61%, 0.65% and 2.13%, 2.44 and 3.25, and 0.996 and 0.97, respectively. The total phenolic content of the fruits was determined by the Folin–Ciocalteu methodology, and for the determination of the antioxidant capacity of the fruits, DPPH, ABTS, and β-carotene bleaching methods were performed and a high level of antioxidant activity was observed. HPLC analysis was applied to identify the phenolic content of the fruits, and gallic acid and chlorogenic acid were found to be the dominant phenolic compounds in Berberis fruits. The water extracts of the Berberis fruits were tested against important foodborne pathogenic bacteria as potential antimicrobials. The extracts inhibited the growth of Bacillus cereus, Salmonella typhimurium, Yersinia enterocolitica, and Staphylococcus aureus at significant rates. This study revealed the potential antioxidant and antimicrobial characteristics of wild-type B. vulgaris and B. crataegina that can be used for different future applications. [ABSTRACT FROM AUTHOR]

BACKGROUND: Grape berries exhibit various beneficial health effects due to the potent antioxidant roles of their phenolic compounds. A new Vitis vinifera grape cultivar (Karaerik) grown in Turkey has attracted growing interest due to its antioxidant phenolic compounds, which have still not been investigated. The phenolic/anthocyanin profile needs to be investigated to ascertain its potential health benefits and market value in the region. The present study therefore involves a detailed characterization of the anthocyanin composition of 'Karaerik' grape berries in conjunction with a determination of the antioxidant capacity value of the phenolics present in the skin and the whole berry. RESULTS: Total phenolic compounds (average 8.56 and 2.88 g gallic acid equivalent kg−1 fresh weight) and anthocyanin (7.48 and 1.66 g mv‐3‐glc equivalent kg−1 fresh weight) contents varied significantly in the skin and whole berry. Malvidin‐based anthocyanins made the highest contribution to the pigment content of the berry. Accordingly, the major anthocyanin in the skin (average 42.08 mol%) and whole berry (39.98 mol%) was malvidin‐3‐glucoside (mv‐3‐glc). In addition, we found strong evidence of the occurrence of sometimes reported malvidin‐3‐pentoside and particularly of the not previously reported feruloyl derivative of malvidin‐3‐(6″‐feruloyl)‐glucoside (mv‐3‐ferglc) for V. vinifera grapes. CONCLUSION: The current study is the first report to profile the anthocyanins of the grape with a detailed description of the rare and novel anthocyanin in V. vinifera grapes. The berry is also a potential source of phenolics/anthocyanins with a high antioxidant capacity value and is worthy of comparison with other V. vinifera grapes. © 2019 Society of Chemical Industry [ABSTRACT FROM AUTHOR]

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Copyright of Journal of the Institute of Science & Technology / Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi is the property of Igdir University, Institute of Science & Technology 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.)