Results 11 to 20 of about 5,399 (207)

Impact of Barrel Toasting on Ellagitannin Composition of Aged Cognac Eaux-de-Vie [PDF]

open access: yesMolecules, 2022
It is well established that C-glucosidic ellagitannins contribute to wine quality, and new forms of ellagitannins have been found recently in cognac eaux-de-vie. The contribution of some ellagitannin-derived spirit compounds to eaux-de-vie taste has been
Mathilde Gadrat   +4 more
doaj   +2 more sources

In Vivo Metabolite Profiling of a Purified Ellagitannin Isolated from Polygonum capitatum in Rats

open access: yesMolecules, 2016
Ellagitannin is a common compound in food and herbs, but there are few detailed studies on the metabolism of purified ellagitannins. FR429 is a purified ellagitannin with antitumor potential, which is from Polygonum capitatum Buch.-Ham.ex D. Don.
Jing-Yi Ma   +11 more
doaj   +2 more sources

Structural Revisions in Natural Ellagitannins [PDF]

open access: yesMolecules, 2018
Ellagitannins are literally a class of tannins. Triggered by the oxidation of the phenolic parts on β-pentagalloyl-d-glucose, ellagitannins are generated through various structural conversions, such as the coupling of the phenolic parts, oxidation to ...
Hidetoshi Yamada   +4 more
doaj   +3 more sources

Identification of Unstable Ellagitannin Metabolites in the Leaves of Quercus dentata by Chemical Derivatization

open access: yesMolecules, 2023
The identification of unstable metabolites of ellagitannins having ortho-quinone structures or reactive carbonyl groups is important to clarify the biosynthesis and degradation of ellagitannins.
Zhang-Bin Liu   +5 more
doaj   +3 more sources

Ellagitannin Digestion in Moth Larvae and a New Dimeric Ellagitannin from the Leaves of Platycarya strobilacea [PDF]

open access: yesMolecules, 2021
Ellagitannins (ETs) are plant polyphenols with various health benefits. Recent studies have indicated that the biological activities of ETs are attributable to their degradation products, including ellagic acid and its gut microflora metabolites, such as
Juri Takayoshi   +5 more
doaj   +3 more sources

Oxidation of the Oak Ellagitannin, Vescalagin

open access: yesJournal of Natural Products, 2020
Vescalagin (1) is a major ellagitannin from young spring leaves of Quercus glauca; however, the amount of 1 decreases as the leaves mature with a concomitant rise in the levels of catechin (3) and procyanidins. In this report, the chemical mechanism responsible for the degradation of 1 was investigated.
Hatsumi Wakamatsu   +5 more
openaire   +3 more sources

Concentrations of Blood Serum and Urinal Ellagitannin Metabolites Depend Largely on the Post-Intake Time and Duration of Strawberry Phenolics Ingestion in Rats

open access: yesPolish Journal of Food and Nutrition Sciences, 2019
The different duration of a strawberry phenolic fraction intake and different post-intake time were experimental factors affecting the concentrations of ellagitannin metabolites in the urine and blood serum of rats.
Ewa Żary-Sikorska   +5 more
doaj   +2 more sources

Stability of the Ellagitannin Fraction and Antioxidant Capacity of Varietal Pomegranate Juices

open access: yesNatural Product Communications, 2015
This work aimed to assess the effect of combining two pomegranate (Punica granatum L.) cultivars at different rates on the ellagitannin content, antioxidant capacity, and total phenolic content of varietal pomegranate juices.
Pedro Mena, Cristina García-Viguera
doaj   +2 more sources

Antimicrobial Ellagitannin of Punica granatum Fruits

open access: yesJournal of the Brazilian Chemical Society, 2002
The ethyl acetate extract of Punica granatum fruits was fractionated by chromatographic techniques to afford the ellagitannin punicalagin. The substance was found to be active against methicillin-resistant Staphylococcus aureus strains and was identified
Machado Thelma de B.   +5 more
doaj   +3 more sources

Influence of the micro-oxygenation dose and supplementation with oak staves of different potential of ellagitannin release on wine color and composition [PDF]

open access: yesBIO Web of Conferences, 2019
Aliquots of a wine of Merlot were micro-oxygenated at two doses of oxygen (2.5 and 5.0 mg of O2/L.month) in the presence or not of oak staves of different potential ellagitannin release (PER) for three months.
Navarro M.   +8 more
doaj   +2 more sources

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