Results 91 to 100 of about 6,593 (215)

Ellagitannins of Davidia involucrata. I. Structure of Davicratinic Acid A and Effects of Davidia Tannins on Drug-Resistant Bacteria and Human Oral Squamous Cell Carcinomas

Molecules, 2017
We isolated a new ellagitannin, davicratinic acid A (5), together with four known ellagitannins, davidiin (1), granatin A (2), pedunculagin (3), and 3-O-galloylgranatin A (4), from an aqueous acetone extract of dried Davidia involucrata leaves. The known
Yuuki Shimozu, Yuriko Kimura, Akari Esumi, Hiroe Aoyama, Teruo Kuroda, Hiroshi Sakagami, Tsutomu Hatano   +6 more
doaj   +1 more source

Réactivité, synthèse, couleur et activité biologique d'Ellagitannins C-glycosidiques et Flavano-Ellagitannins

, 2021
Les composés phénoliques sont des substances qui jouent un rôle important en oenologie. Ils sont responsables de la couleur et de l'astringence des vins. Les polyphénols présents dans le vin sont majoritairement des flavonoïdes qui proviennent du raisin,
JOURDES, Michaël
core  

α-Glucosidase Inhibitory Activity of Polyphenols from the Burs of Castanea mollissima Blume

Molecules, 2014
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, Shan Zhao, Peipei Yin, Linlin Yan, Jin Han, Lingling Shi, Xiaojing Zhou, Yujun Liu, Chao Ma   +8 more
doaj   +1 more source

Accurate identification and profiling of ellagitannins in strawberries and woodland strawberries: the influence of cultivar on the concentration and composition of ellagitannins

, 2013
Of the most commonly consumed berries, strawberries (Fragaria x ananassa Duch.) are the most popular choice with consumers, being eaten both fresh and frozen, as well as in different processed products.
Gasperotti, Mattia, Vrhovsek, Urska, Palmieri, Luisa, Guella, G., Martinatti, Paolo, Mattivi, Fulvio, Pojer, Elisa, Guella G., Masuero, Domenico   +8 more
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Tea Is a Significant Dietary Source of Ellagitannins and Ellagic Acid

, 2018
The ellagitannin composition and the total content of ellagitannins in different types of tea were studied by high-performance liquid chromatography/ion-trap mass spectrometry.
Francisco A. Tomás-Barberán, Xiao Yang (19898), Xiao Yang, Francisco A. Tomás-Barberán (2099284)   +3 more
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Colonic Catabolism of Ellagitannins, Ellagic Acid, and Raspberry Anthocyanins: In Vivo and In Vitro Studies [PDF]

, 2020
: 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, □ S, Rocío Gonzá Lez-Barrio, Christine A Edwards   +3 more
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Chelation of iron(II) ions by ellagitannins - effects of hexahydroxydiphenoyl and nonahydroxytriphenoyl groups

Tannins represent secondary plant metabolites that are used to control bacterial populations by chelation of essential metal ions. Their presence in food also affects the bioavailability of iron.
Frešer, Franjo, Bren, Urban, Hostnik, Gregor   +2 more
core   +1 more source

Colonic catabolism of ellagitannins, ellagic acid, and raspberry anthocyanins: in vivo and in vitro studies

, 2011
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 intake.
Crozier, A., Gonzalez-Barrio, R., Alan Crozier, Rocío González-Barrio, Christine A. Edwards, Edwards, Christine, Edwards, C., Christine A Edwards   +7 more
core   +1 more source

Composition of blackberry (ETblack) and raspberry (ETrasp) ellagitannins.

, 2013
Berries ETs were extracted with acetone/water 70:30, isolated by Sephadex LH 20 column chromatography, precipitated with hexane and quantified by UPLC-PDA-MS. Ellagitannins were detected at 260 nm.
Urska Vrhovsek (161776), Laura Brembati (441649), Giuseppe Rossoni (441647), Fulvio Mattivi (161798), Mattia Gasperotti (441651), Elisa Colombo (286321), Enrica Bosisio (441652), Silvio Trivulzio (441650), Mario Dell'Agli (441653), Enrico Sangiovanni (441646), Cecilia Brunelli (441648)   +10 more
core   +1 more source

Saccharomyces cerevisiae Fermentation of Pomegranate Peel By-Product Yields Tannin-Rich Extracts and Potentially Prebiotic Polysaccharides

Foods
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, Lorenzo Cecchi, Beatrice Zonfrillo, Silvia D’Agostino, Davide Bertelli, Eleonora Truzzi, Elia Pagliarini, Diana Di Gioia, Maria Bellumori, Nadia Mulinacci   +9 more
doaj   +1 more source