Proanthocyanidins, also known as condensed tannins, are oligomers or polymers of flavan-
3-ol units. In spite of important breakthroughs in our understanding of the biosynthesis of the …

Covering: January 1999 to December 2001. Previous review: 2000, 17, 193. This review
covers the flavan-3-ols (catechins), flavan-4-ols/flavan-3, 4-diols (leucoanthocyanidins), A …

Advances in the flavonoid field have been nothing short of spectacular over the last 20
years. While the medical field has noticed flavonoids for their potential antioxidant …

原花青素是一类广泛存在于自然界中的黄烷-3-醇类化合物. 本文详细整理国内外有关原花青素
的报道, 就其化学结构, 生物活性, 吸收代谢和毒理学特性做详细综述. 其中, 原花青素的化学结构 …

Defatted cinnamon fruit powder was successively extracted with benzene ethyl acetate,
acetone, MeOH, and water. The concentrated water extract contained the maximum amount …

Abstract Six flavonoids, namely luteolin (1), epicatechin (2), kaempferol 3-O-β-glucoside (3),
kaempferol 3-O-α-rhamnoside (4), procyanidin A 2 (5) and rutin (6) were purified from the …

Two new A-type trimeric proanthocyanidins with two doubly bonded interflavanoid linkages,
litchitannin A1 [epicatechin-(2β→ O→ 7, 4β→ 6)-epicatechin-(2β→ O→ 7, 4β→ 8) …

Grape seeds accumulate in huge quantities as byproduct during wine production and are
therefore a cheap source for pharmacologically active agents. However, studies prove poor …

Biflavonoids, composed of two monoflavonoid residues, occur naturally in angiosperms,
bryophytes, ferns, and gymnosperms. More than 592 biflavonoids have been structurally …

Phytochemical investigation of the ethyl acetate fraction of the methanol extract of the leaves
of Ixora coccinea led to the isolation and identification of an A-type trimeric proanthocyanidin …