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Application of in vitro stevia (Stevia rebaudiana Bertoni) cultures in obtaining steviol glycoside rich material

. Ind. Crops Prod 2012; 37(1):111-117. 4. Kinghorn AD. Biologically active compounds from plants with reputed medicinal and sweetening properties. J Nat Prod 1987; 50(6):1009-1024. 5. Brusick DJ. A critical review of the genetic toxicity of steviol and steviol glycosides. Food Chem Toxicol 2008; 46(7):S83-S91. 6. Ibrahim IA, Nasr MI, Mohammed BR, El-Zefzafi MM. Nutrient factors affecting in vitro cultivation of Stevia rebaudiana. Sugar Tech 2008; 10(3):248-253. 7. Joint FAO/WHO Expert Committee on Food

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Phytonutrients in Oat (Avena sativa L.) Drink: Effect of Plant Extract on Antiradical Capacity, Nutritional Value and Sensory Characteristics

., Elfalleh W., Hannachi H., Ferchichi A., Da Graca Campos M., Identification and quantification of phenolic acids and flavonol glycosides in Tunisian Morus species by HPLC-DAD and HPLC-MS. J. Funct. Foods, 2012, 4, 367–374. 49. Vichasilp C., Nakagawa K., Sookwong P., Higuchi O., Luemunkong S., Miyazawa T., Development of high 1-deoxynojirimycin (DNJ) content mulberry tea and use of response surface methodology to optimize tea-making conditions for highest DNJ extraction. LWT – Food Sci. Technol., 2012, 45, 226–232. 50. Yen G.C., Chen H.Y., Antioxidant

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Effect of black mulberry (Morus nigra) powder on growth performance, biochemical parameters, blood carotenoid concentration, and fillet color of rainbow trout

polyphenolic compounds in fruits and vegetables. Food Chem., 126(4): 1821-1835. Imran M., Khan H., Shah M., Khan R., Khan F., (2010). Chemical composition and antioxidant activity of certain Morus species. J. Zhejiang Univ. Sci., 11: 973-980. Kaume L., Howard L.R., Devareddy L. (2011). The blackberry fruit: a review on its composition and chemistry, metabolism and bioavailability, and health benefits. J. Agric. Food Chem., 60(23): 5716-5727. Katsube T., Imawaka N., Kawano Y., Yamazaki Y., Shiwaku K., Yamane Y., (2006). Antioxidant flavonol glycosides in

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Comparison of Phenolics and Phenolic Acid Profiles in Conjunction with Oxygen Radical Absorbing Capacity (ORAC) in Berries of Vaccinium arctostaphylos L. and V. myrtillus L.

Abstract

Caucasian blueberry (Vaccinium arctostaphylos L.) and bilberry (V. myrtillus L.), both native to Turkey, were evaluated for their total phenolics (TP) and anthocyanin (TAC) contents. Individual compositions of free phenolic acids and phenolic acids liberated from ester and glycoside forms were analyzed using UPLC-MS/MS. Berry extracts of each species were separated into three different fractions (sugar/acid, polyphenolic and anthocyanin) by solid phase extraction (SPE). The anthocyanin fractions of each species had the highest level of TP and TAC contents and ORAC values. Each species contained 10 phenolic acids representing each fraction, but in different quantities. The phenolic acids liberated from the esters and glycoside forms were caffeic acid and p-coumaric acid. The fractions containing phenolic acids liberated from ester and glycoside forms had a higher antioxidant capacity than that from free phenolic acids. The data suggest that both berries have potential as good dietary sources of phenolic antioxidants.

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The effect of 2-hydroxypropyl β-cyclodextrin on the stability of polyphenolic compounds from Moringa oleifera Lam leaf extracts in a natural low-transition temperature mixture

determination of flavonoids with response surface methodology optimization. J. Chrom. A 1285: 22-30. Çelik SE, Özyürek M, Güçlü K, Apak R (2015) Antioxidant capacity of quercetin and its glycosides in the presence of β -cyclodextrins: influence of glycosylation on inclusion complexation. J. Inclus. Phenom. Macrocycl. Chem. 83: 309-319. Çelik SE, Özyürek M, Tufan AN, Güçlü K, Apak R (2011) Spectroscopic study and antioxidant properties of the inclusion complexes of rosmarinic acid with natural and derivative cyclodextrins. Spectrochim. Acta Part A: Mol. Biomol

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Content of selected biologically active compounds in tea infusions of widely used European medicinal plants

Content of selected biologically active compounds in tea infusions of widely used European medicinal plants

Herbal tea infusions are a very important source of flavonoids and other biologically active compounds in human medicine and nutrition. Melissa officinalis, Agrimonia eupatoria, Sambucus nigra, Achillea millefolium, Filipendula ulmaria, Betula pendula and Glechoma hederacea were selected as common European medicinal herbs and sources for tea infusion preparations. Quercetin, rutin, catechin, chlorogenic acid, and squalene were determined in the prepared infusions. Free quercetin was not found in any of the infusions, but tea infusions did contain rutin and other quercetin glycosides, the content of which was, after acid hydrolysis, determined as quercetin. The highest levels of total quercetin were found in infusions from Filipendula ulmaria and Sambucus nigra (120 and 108 mg L-1, respectively) corresponding to the content of rutin found also in these two infusions (25.2 and 194 mg L-1, respectively). The Sambucus nigra infusion contained the largest content of chlorogenic acid (166 mg L-1), and infusions from Melissa officinalis, Agrimonia eupatoria, Betula pendula and Glechoma hederacea contained only small amounts of squalene.

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Antioxidant Capacity, Anthocyanin Content Profile in ‘Bluecrop’ Blueberry Fruit

Antioxidant Capacity, Anthocyanin Content Profile in ‘Bluecrop’ Blueberry Fruit

Mature ‘Bluecrop’ berries, with no visible damage on the fruit surface, were picked by hand and placed in a common cold storage (as control) and under CA conditions consisting of 8 different CO2:O2 ratios (12:1.5, 12:3, 12:6, 12:12 and 18:1.5, 18:3, 18:6, 18:12) at 0°C. HPLC was used to separate and determine individual anthocyanin compounds in blueberry fruit. ‘Bluecrop’ blueberries contained 14 anthocyanins: glycosides of delphinidin, cyanidin, peonidin, petunidin and malvidin all with sugar bound at the 3-position. Generally, the content of anthocyanin compounds in fruit was the highest after 2 or 4-week storage. Total anthocyanin content was significantly higher in berries stored under CA condition, especially under low oxygen concentration, as compared with those placed in common cold storage, and CO2 concentration does not have any effect. Antioxidant activity strongly correlated with total anthocyanin content, delphinidin-3-glucoside, delphinidin-3-galactoside, delphinidin-3-arabinoside, petunidin-3-glucoside, petunidin-3-galactoside and with firmness, but slightly correlated with soluble solids and titratable acidity.

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FLAVONOLS HPLC ANALYSIS, IN VITRO BIOLOGICAL ACTIVITIES IN SELECTED HUMULUS LUPULUS L. GENOTYPES

., REUNING, U., ULM, K., HOFL, H., JANICKE, F., GRAEFF, H.: Clinical impact of the plasminogen activation system in tumor invasion and metastasis: prognostic relevance and target for therapy. Thromb. Haemost . 78, 1997, 285-296. SEGAWA, S., YASUI, K., TAKATA, Y., KURIHARA, T., KANEDA, H., WATARI, J.: Flavonoid Glycosides Extracted from Hop ( Humulus lupulus L.) as Inhibitors of Chemical Mediator Release from Human Basophilic KU812 Cells.Biosci. Biotechnol. Biochem. 70, 2006, 2990 - 2997. SIVASOTHY, Y., SULAIMAN, S.F., OOI, K.L., IBRAHIM, H

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Bioactive Phenolic Compounds of Soybean (Glycine max cv. Merit): Modifications by Different Microbiological Fermentations

-glucosidases. J. Appl. Microbiol., 2007b, 103, 601-612. 25. Pham T.T., Shah N.P., Hydrolysis of isofl avone glycosides in soy milk by β-galactosidase and β-glucosidase. J. Food Biochem., 2009, 33, 38-60. 26. Park Y.H., Alenscar S.M., Aguiar C.L., Mascrenhas H.A.A., Scamparini A.R.P., Conversion of malonyl β-glucoside isofl avones found in some cultivars of Brazilian soybeans. Ciênc. Tecnol. Aliment., 2002, 22, 130-135. 27. Park Y.K., Lui M.C.Y., Aguiar C.L., Production of enriched isofl avone aglycones during processing of soy

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Quantitative Analysis of Biologically Active Polyphenols in Evening Primrose (Oenothera paradoxa)Seeds Aqueous Extracts

biennis L.). J. Am. Oil Chem. Soc., 2002, 79, 335-338. Zhang J., Li L., Kim S-H., Hagerman A. E., Lü J., Anti-cancer, anti-diabetic and other pharmacologic and biological activities of penta-galloyl-glucose. Pharm. Res., 2009, 26, 2066-2080. Zinsmeister H. D., Plitzko I., Schels H., Flavonols glycosides in South American species of Oenothera sect. Oenothera. Phytochemistry, 1977, 16, 497. Zinsmeister H. D., Bartl S., The phenolic compounds of Oenothera. Phytochemistry, 1971, 10, 3129-3132.

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