Results 301 to 310 of about 46,558 (333)

ARF2 positively regulates flavonols and proanthocyanidins biosynthesis in Arabidopsis thaliana

Planta, 2022
Wenbo Jiang, Yaying Xia, Xiaojia Su, Y. Pang   +3 more
semanticscholar   +1 more source

Biflavonoids and Proanthocyanidins

1989
The biflavonoids and proanthocyanidins constitute the two major classes of oligomeric flavonoids found in plants (126, 136). The biflavonoids are oxidative coupling products leading to biflavones, flavanone-flavones, and biflavanones. These compounds always carry carbonyl functions at the C-4 positions (126).
openaire   +2 more sources

Variation of Proanthocyanidins in Lotus Species

Journal of Chemical Ecology, 2006
The proanthocyanidin (PA) chemistry of 12 Lotus species of previously unknown PA content was examined in comparison with agricultural cultivars of L. pedunculatus, L. corniculatus, and L. tenuis and a "creeping" selection of L. corniculatus. Herbage harvested in winter 2000 and again in spring had extractable PA concentrations, estimations of which ...
William Rumball, Karl Fraser, Min Yu, Lai Y. Foo, Lucy P. Meagher, Subathira Sivakumaran, Lane Ga   +6 more
openaire   +3 more sources

Biosynthesis of plant proanthocyanidins

Journal of the Chemical Society, Chemical Communications, 1974
Studies of the biosynthesis of (–)-epicatechin and related plant proanthocyanidins have been made in Aesculus carnea and Rubus sp., these are interpreted in terms of a new scheme of biogenesis.
Edwin Haslam, David Jacques
openaire   +2 more sources

Proanthocyanidins and the lignin connection

Phytochemistry, 1988
Abstract Since both lignin and proanthocyanidins (including condensed tannins are frequently found together in woody plants, a common structural role has sometimes been postulated. These two phenolic polymers (or oligomers) are compared in terms of their stereochemistry, absorption spectra, biosynthetic pathways, intracellular and tissue localization,
openaire   +2 more sources

Proanthocyanidins ofZiziphus jujuba

Chemistry of Natural Compounds, 1997
The catechin and proanthocyanidin compositions of the leaves and bark ofZiziphus jujuba have been studied over the vegetation periods. This has led to the isolation of 16 compounds, including 8 monomeric catechins — (−)-epiafzelechin, (−)-epicatechin, (−)-epigallocatechin, (−)-epicatechin gallate, (−)-epigal-locatechin gallate, (+)-catechin ...
Yu. A. Akhmedov, A. Malik, Z. A. Kuliev, N. D. Abdullaev, A. D. Vdovin   +4 more
openaire   +2 more sources

The phytochemistry of proanthocyanidin polymers

Phytochemistry, 1980
Abstract The structures of 38 proanthocyanidin polymers (condensed tannins) from 14 widely distributed families of plants are described. The polymers have been isolated from a wide variety of tissues including fruit (ripe and unripe), leaves, bark and phloem.
Lawrence J. Porter, Lai Yeap Foo
openaire   +2 more sources

Analysis of anti-obesity and anti-diabetic effects of acacia bark-derived proanthocyanidins in type 2 diabetes model KKAy mice

Journal of Natural Medicines, 2021
Mayumi Kashiwada, S. Nakaishi, Ayumi Usuda, Yumi Miyahara, Kenta Katsumoto, Kyoko Katsura, Izumi Terakado, Makiko Jindo, Shihori Nakajima, Sosuke Ogawa, K. Sugiyama, W. Ochiai   +11 more
semanticscholar   +1 more source

Analysis of proanthocyanidins

Molecular Nutrition & Food Research, 2008
Wolfgang Hümmer, Peter Schreier
openaire   +3 more sources

The Enzymology of Proanthocyanidin Biosynthesis

1989
The cell-free enzymology of the biosynthesis of the 2,3-trans forms of flavan-3-ols and the oligomeric 2,3-trans proanthocyanidins is now known except for the final condensation step to the oligomers. The individual enzymic steps at the C-15 level are described.
openaire   +2 more sources