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Tannin: An Insight into its Cosmeceutical Properties and Uses. [PDF]
Glob ChallCiriminna R +6 more
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Dietary Intake of Hydrolyzable Tannins and Condensed Tannins to Regulate Lipid Metabolism
Mini-Reviews in Medicinal Chemistry, 2022Abstract: Lipid metabolism disorder is a multifactor issue, which contributes to several serious health consequences, such as obesity, hyperlipidemia, atherosclerosis diabetes, non-alcoholic fatty liver, etc. Tannins, applied as naturally derived plants, are commonly used in the study of lipid metabolism disease with excellent safety and effectiveness
Yue Shi, Chong Guo, Chengfu Yuan
exaly +3 more sources
Immunocytochemical studies on the origin and deposition sites of hydrolyzable tannins
Plant Science, 2001Two specific antibodies, directed toward hydrolyzable tannins, i.e. polygalloylated or oxidized derivatives of 1,2,3,4,6-penta-O-galloylglucose, and toward an acyltransferase from oak leaves that catalyzes the biosynthesis of this principal precursor, were used in immunocytochemical studies to determine the intracellular sites of origin and deposition ...
Georg G Gross
exaly +3 more sources
Oligomeric hydrolyzable tannins from Monochaetum multiflorum
Phytochemistry, 2004Four hydrolyzable tannins, nobotanins Q, R, S, and T, were isolated from the aqueous acetone extract of the dried leaves of Monochaetum multiflorum (Melastomataceae), a plant indigenous to Colombia. Their dimeric and tetrameric structures were elucidated by spectral and chemical methods.
Hideyuki Itô
exaly +3 more sources
Correlation of oxidative transformations of hydrolyzable tannins and plant evolution
Phytochemistry, 2000The progressive oxidative transformations in the biogenesis of hydrolyzable tannins, gallotannin (I) --> ellagitannin (II) --> dehydro ellagitannin (III) --> transformed dehydroellagitannin (IV), conform in several aspects to the evolutionary routes in the subclasses of Dicotyledonae, particularly in the Rosidae.
Tsutomu Hatano
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Biosynthesis and subcellular distribution of hydrolyzable tannins
Phytochemistry, 2001Pathways to complex gallotannins have been elucidated by enzyme studies, indicating that beta-glucogallin is required as principal acyl donor. Evidence for the in vitro oxidation of pentagalloylglucose, the pivotal metabolite in this sequence, to ellagitannins, is presented. Immunohistochemical studies with antibodies raised against pentagalloylglucose
P, Grundhöfer +3 more
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Chemical Studies of Proanthocyanidins and Hydrolyzable Tannins
Antioxidants & Redox Signaling, 2001We investigated a number of natural polyphenols representing flavan-3-ols, gallotannins, and ellagitannins with regard to their antioxidant potential. For this purpose we used pulse radiolysis to determine scavenging rate constants with hydroxyl radicals and decay rates of the respective aroxyl radicals and EPR spectroscopy to identify the radicals ...
W, Bors +4 more
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Hydrolyzable Tannins and Related Polyphenols
1995Recent advances in isolation and structure elucidation of several hundred of new polyphenolic compounds of the tannin class using new techniques (1) have altered the definition of a tannin, at least that of a hydrolyzable tannin. Thus the term tannin now includes all polyphenolic compounds of defined chemical structure as well as the whole group of ...
T, Okuda, T, Yoshida, T, Hatano
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