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Diastereomeric Ellagitannin Isomers from Penthorum chinense
Journal of Natural Products, 2015From the dried stem of Penthorum chinense (Penthoraceae), 1-O-galloyl-4,6-(R)-hexahydroxydiphenoyl (HHDP)-β-D-glucose and 2',4',6'-trihydroxyacetophenone 4'-O-[4,6-(R)-HHDP]-β-D-glucoside were isolated together with their (S)-HHDP isomers. Ellagitannins with a 4,6-(S)-HHDP-glucose moiety are widely distributed in the plant kingdom; however, 4,6-(R ...
Manami, Era +5 more
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Research progress of ellagitannin intestinal metabolite urolithins
China Journal of Chinese Materia Medica, 2016Ellagitannins is a kind of phenolic compounds with many biological activities. Recent studies have found that the effective ingredients of these compounds have close relationship with their colon-derived bacteria metabolites, that is urolithins.
Ben-Hong, Zhou +5 more
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ChemInform, 2000
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Ken S. Feldman, Michael D. Lawlor
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AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Ken S. Feldman, Michael D. Lawlor
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Toward Understanding Monomeric Ellagitannin Biosynthesis
1999Ellagitannins are found in approximately 40 percent of all dicotyledenous plants ranging from raspberries to the oaks.1–3 By definition, this class of compounds is composed of only glucose and biaryl-linked gallic acid. Though these two compounds are relatively simple in structure, the complexity of the compounds that can be formed is tremendous ...
Richard F. Helm +4 more
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Detection and determination of ellagitannins
Phytochemistry, 1972Abstract Ellagic acid combined in the form of esters of hexahydroxydiphenic acid (HHDP) can be quantitatively determined by taking advantage of the formation of a coloured product with nitrous acid. Under specified conditions, monoesters with glucose have molecular absorption coefficients between 2150 and 2300 at 600 nm.
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Highly Oxidized Ellagitannins and Their Biological Activity
1999Polyphenols such as flavonoids and tannins in medicinal plants, foods, and beverages are attracting considerable attention in human health care because of their biologically multifunctional properties. These properties include antioxidant activity due to radical scavenging action and anti-HIV, antitumor activities, and inhibitory effects on various ...
T, Yoshida, T, Hatano, H, Ito, T, Okuda
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Chemistry and Biology of Ellagitannins
2009Ellagitannins Renewed the Concept of Tannin (T Okuda et al.) Structural Diversity and Antimicrobial Activities of Ellagitannins (T Yoshida et al.) Biosynthesis of Ellagitannins: Old Ideas and New Solutions (G Gross) Physicochemical Properties and Biomimetic Reactions of Ellagitannins (T Tanaka et al.) Total Synthesis of Ellagitannins (K Khanbabaee ...
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