Results 11 to 20 of about 11,205 (211)

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

Valorization of American Barrel-Shoot Wastes: Effect of Post Fermentative Addition and Readdition on Phenolic Composition and Chromatic Quality of Syrah Red Wines [PDF]

open access: yes, 2020
The influence of post fermentative addition of American barrel-shoot wastes on phenolic composition and chromatic quality of Syrah red wines has been evaluated as an environmentally sustainable alternative to the conventional winemaking for avoiding the ...
Baca Bocanegra, Berta   +3 more
core   +1 more source

Polyphenol Profile of Cistus × incanus L. and Its Relevance to Antioxidant Effect and α-Glucosidase Inhibition

open access: yesAntioxidants, 2023
The European Food Safety Authority recommends C. incanus as a natural source of antioxidants. Its activity is essentially determined by polyphenols, although specific compounds are not finally indicated.
Aneta Starzec   +5 more
doaj   +1 more source

A study of the antioxidant capacity of oak wood used in wine ageing and the correlation with polyphenol composition [PDF]

open access: yes, 2011
The antioxidant capacity of oak wood used in the ageing of wine was studied by four different methods: measurement of scavenging capacity against a given radical (ABTS, DPPH), oxygen radical absorbance capacity (ORAC) and the ferric reducing antioxidant ...
Alañón, M.E.   +4 more
core   +1 more source

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   +1 more source

Effects of olive and pomegranate by-products on human microbiota : a study using the SHIME (R) in vitro simulator [PDF]

open access: yes, 2019
Two by-products containing phenols and polysaccharides, a "pate" (OP) from the extra virgin olive oil milling process and a decoction of pomegranate mesocarp (PM), were investigated for their effects on human microbiota using the SHIME (R) system.
Daghio, Matteo   +6 more
core   +1 more source

Ellagitannins in Cancer Chemoprevention and Therapy [PDF]

open access: yesToxins, 2016
It is universally accepted that diets rich in fruit and vegetables lead to reduction in the risk of common forms of cancer and are useful in cancer prevention. Indeed edible vegetables and fruits contain a wide variety of phytochemicals with proven antioxidant, anti-carcinogenic, and chemopreventive activity; moreover, some of these phytochemicals also
Ismail, Tariq   +7 more
openaire   +4 more sources

Hydrothermal hydrolysis of sweet chestnut (Castanea sativa) tannins [PDF]

open access: yesJournal of the Serbian Chemical Society, 2020
Sweet chestnut tannins were treated with subcritical water at temperatures from 120 to 300 °C for reaction times of 15, 30 and 60 min. A great influence of temperature and reaction time on the product yield was noticed.
Gagić Tanja   +2 more
doaj   +1 more source

Diverse Phytochemicals and Bioactivities in the Ancient Fruit and Modern Functional Food Pomegranate (Punica granatum). [PDF]

open access: yes, 2017
Having served as a symbolic fruit since ancient times, pomegranate (Punica granatum) has also gained considerable recognition as a functional food in the modern era. A large body of literature has linked pomegranate polyphenols, particularly anthocyanins
Tian, Li, Wu, Sheng
core   +2 more sources

Partition Coefficients (logP) of Hydrolysable Tannins

open access: yesMolecules, 2020
The partition coefficients (logP) between n-octanol and water of 47 purified and characterized hydrolysable tannins were measured with the shake flask method utilizing UPLC and HPLC with UV detection.
Valtteri Virtanen, Maarit Karonen
doaj   +1 more source

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