Results 31 to 40 of about 5,033 (179)

Simultaneous Quantification of Ellagitannins and Related Polyphenols in Geranium thunbergii Using Quantitative NMR

open access: yesMolecules, 2018
Compared to commonly employed liquid chromatography-based methods, quantitative nuclear magnetic resonance (qNMR) is a recently developed method for accurate quantification of natural compounds in extracts.
Februadi Bastian   +5 more
doaj   +1 more source

Isolation of Human Intestinal Bacteria Capable of Producing the Bioactive Metabolite Isourolithin A from Ellagic Acid

open access: yesFrontiers in Microbiology, 2017
Urolithins are intestinal microbial metabolites produced from ellagitannin- and ellagic acid-containing foods such as walnuts, strawberries, and pomegranates.
María V. Selma   +7 more
doaj   +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

Ferroptosis‐Inhibitory Effect and Possible Mechanisms of Ellagitannin Geraniin

open access: yesChemistryOpen, 2021
The search for safe and effective ferroptosis‐inhibitors has become an important topic. Geraniin, an ellagitannin bearing hexahydroxydiphenoyl (HHDP) and dehydrohexahydroxydiphenoyl (DHHDP) groups, was observed to inhibit erastin‐induced ferroptosis in ...
Dr. Ban Chen   +6 more
doaj   +1 more source

Ellagitannins as Active Constituents of Medicinal Plants [PDF]

open access: yesPlanta Medica, 1989
Isolation and structure determination, accompanied by measurement of various biological activities of each isolated tannin, particularly of ellagitannins, have brought about a marked change in the concept of tannins as active constituents of medicinal plants. Their biological activities should now be discussed on the basis of the structural differences
T, Okuda, T, Yoshida, T, Hatano
openaire   +2 more sources

Enological Tannin Effect on Red Wine Color and Pigment Composition and Relevance of the Yeast Fermentation Products

open access: yesMolecules, 2017
Enological tannins are widely used in the winemaking process either to improve different wine characteristics (color stability, among others) or to compensate for low tannin levels.
Ignacio García-Estévez   +3 more
doaj   +1 more source

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

open access: yesMolecules, 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   +6 more
doaj   +1 more source

Mango Seed Valorization: Sustainable Source of Nutrients, Bioactives, and Value‐Added Applications

open access: yesFood Chemistry International, EarlyView.
Highlighting mango seed as a valuable yet overlooked by‐product, promoting its utilization and reducing agroindustrial waste. ABSTRACT Mango (Mangifera indica L.) is one of the most widely cultivated tropical fruits, generating large quantities of by‐products during processing, with mango seed representing 20%–25% of the whole fruit weight ...
Priyanka Yadav   +3 more
wiley   +1 more source

Evaluation of Nutritional and Bioactive Compounds in Tea and Botanical Marc Following Industrial Liqueur Maceration

open access: yesFood Chemistry International, EarlyView.
Industrial botanical marc retained valuable phytochemicals, antioxidants, catechins, and caffeine after ethanol maceration, with composition varying by botanical source and processing. These underutilized by‐products represent promising, safe, and sustainable feedstocks for recovering bioactive compounds for food, nutraceutical, and functional ...
Veronika Šimora   +7 more
wiley   +1 more source

Bridging Flavour and Fragrance: A Behaviour‐Based Olfactory Pyramid for Whisky Maturation Inspired by Perfumery Principles

open access: yesFlavour and Fragrance Journal, EarlyView.
This framework transposes the perfumery olfactory pyramid to whisky maturation by sequencing aromas into top, heart, and base notes according to their temporal persistence. Using Log P as a behaviour‐based classification axis and oak macromolecules as natural fixative analogues, it proposes a behaviour‐based aromatic wheel bridging flavour chemistry ...
Magali Picard
wiley   +1 more source

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