Rubusuaviins A-F, Monomeric and Oligomeric Ellagitannins from Chinese Sweet Tea and Their α-Amylase Inhibitory Activity [PDF]
Six new ellagitannins herein, rubusuaviins A?F, were isolated from the aqueous acetone extract of Chinese sweet tea (Tien-cha, dried leaves of Rubus suavissimus S. LEE) together with seven known tannins. Rubusuaviin A was characterized as 1-O-galloyl-2,3-
Kouno, Isao +4 more
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α-Glucosidase Inhibitory Activity of Polyphenols from the Burs of Castanea mollissima Blume
Polyphenol extracts from the burs of Castanea mollissima Blume (CMPE) exhibited potential antioxidant and hypoglycemic activities. The α-glucosidase inhibitory activities of CMPE were assessed as a means of elucidating the mechanism behind its ...
Jianwei Zhang +8 more
doaj +1 more source
Réactivité, synthèse, couleur et activité biologique d'ellagitannins C-glycosidiques et flavano-ellagitannins [PDF]
Les vins de qualité son généralement élevé en fûts de chêne pendant 6 à 18 mois ce qui permet au vin d'améliorer ces qualités organoleptiques. Au cours de ce contact avec le bois, le vin s'enrichit en ellagitannins C-glycosidiques. Au cours de ce travail,
JOURDES, Michaël, QUIDEAU, Stéphane
core
Activity-guided isolation of 80% acetone extract of Cornus alba, which is traditionally used as an anti-inflammatory, hemostatic and diuretic in Korea, yielded one novel compound, tentatively designated cornusiin H (13), together with 12 known compounds.
Kwan Hee Park +4 more
doaj +1 more source
Colonic Catabolism of Ellagitannins, Ellagic Acid, and Raspberry Anthocyanins: In Vivo and In Vitro Studies [PDF]
: Red raspberries contain principally anthocyanins and ellagitannins. After ingestion of raspberries by humans, trace levels of anthocyanins, absorbed in the upper gastrointestinal tract, are excreted in urine in amounts corresponding to <0.1% of ...
Alan Crozier +3 more
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Geometry and Wood Origin of Barrel Alternatives: Impact on the Chemical Composition of Aged Tsipouro
This study investigates the impact of wood origin and the geometry of barrel alternatives on the extraction of volatile compounds and total ellagitannins during the aging of tsipouro, a traditional Greek spirit.
Athanassios Karathanos +4 more
doaj +1 more source
SYNTHESIS AND PHYSICO-CHEMICAL PROPERTIES OF ACYLATED TANNIN'S [PDF]
One of the areas in the search for new pharmacologically active compounds and the study is to obtain modified derivatives of natural substances. The goal was to synthesize a series of acylated derivatives of gallo-and ellagitannins and explore their ...
Mustafa Al Hussein, Martynov AV
doaj
Pomegranate peel, accounting for 35–50% of the fruit weight, is an underutilized agri-food by-product. This study applied, for the first time, fermentation with Saccharomyces cerevisiae as a simple and sustainable strategy to simultaneously obtain tannin-
Mohamad Khatib +9 more
doaj +1 more source
Pomegranate ellagitannins inhibit in vitro carbohydrate digestion [PDF]
Pomegranate is an ancient fruit studied for its anti-diabetic properties. The aim of the present work was to identify the α-glucosidase inhibitors in a pomegranate juice polyphenol-rich extract (PPRE). The PPRE, obtained using C18 solid-phase extraction,
BELLESIA, ANDREA +3 more
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Evolution of oak barrels C-glucosidic ellagitannins in wine model solution
Oak wood has a significant impact on the chemical composition of wine, leading to transformations that influence its organoleptic properties, such as its aroma, structure, astringency, bitterness and color.
Julia Hernandez +2 more
doaj +1 more source

