The Cover Feature shows the structure of a cyclic epicatechin trimer produced by oxidative coupling. has C3 symmetric shaped like three cats sleeping. Its stereostructure was assigned on basis various spectroscopic data, including theoretical calculations NMR and ECD data. Epicatechin is type plant polyphenol present in foods such as green tea, apples, grapes, cocoa. During black tea production...

Methanol (ME) and hot water extracts (WE) of carob tree sapwood (Ceratonia siliqua L.) exhibited high antioxidant activity and were rich in phenolic compounds, with the main compounds identified by HPLC/DAD as gentisic acid and (-)-epicatechin. The ME displayed a high in vitro antitumor activity against human tumoural cell lines and reduced intracellular ROS production by HeLa cells after treat...

Fuzhuan brick tea, a kind of dark tea consumed mainly in the border regions of Southwestern and Northwestern China since the 1860s, is produced from the leaves of Camellia sinensis var. sinensis by microbial fermentation. From this special fermented tea, a new norisoprenoid, 3R,9R-oxido-5-megastigmene, was isolated, together with α-linolenic acid, strictin, isovitexin, astragalin, (+)-catechin,...

The plant species belonging to the Litsea genus are widely investigated due their nutritional and medicinal purposes. In this regard, study is another similar sincere effort in which antioxidant property phytochemical composition of garciae (L. garciae) bark’s hexane, chloroform, methanol, aqueous extracts were evaluated confirm its traditional benefits. total flavonoid content (TFC) phenolic (...

Natural products have a wide range of diversity multidimensional chemical structures which play vital role show the important nature as golden source for achieving herbal drug discovery. Literature survey was accomplished using multiple databases including PubMed, Science Direct, ISI web knowledge and Google Scholar. Epigallocatechin-3-gallate is most abundant tea polyphenol, followed by other ...

A human intestinal bacterium, Eubacterium (E.) sp. strain SDG-2, was tested for its ability to metabolize various (3R)- and (3S)-flavan-3-ols and their 3-O-gallates. This bacterium cleaved the C-ring of (3R)- and (3S)-flavan-3-ols to give 1,3-diphenylpropan-2-ol derivatives, but not their 3-O-gallates. Furthermore, E. sp. strain SDG-2 had the ability of p-dehydroxylation in the B-ring of (3R)-f...

(-)-Epicatechin (EC), (-)-epigallocatechin (EGC), (-)-epicatechin gallate (ECg), and (-)-epigallocatechin gallate (EGCg) were prepared from crude catechins (containing 90% cateehin in total) as described in our previous paper,i) Crude theaflavins, theafiavin (TFI), theaflavin monogallate A (TF2A), theafiavin monogallate B (TF2B), and theaflavin digallate (TF3) were prepared from black tea by ou...

(-)-Epigallocatechin gallate was found to be the most effective scavenger among tea catechins for the superoxide anion, hydroxyl radical, and 1,1-diphenyl-3-picrylhydrazyl radical. Examination of the scavenging effects of tea catechins and their glucosides on superoxide anion showed that the presence of at least an ortho-dihydroxyl group in the B ring and a galloyl moiety at the 3 position was ...

Fuzhuan brick tea, a kind of dark tea consumed mainly in the border regions of Southwestern and Northwestern China since the 1860s, is produced from the leaves of Camellia sinensis var. sinensis by microbial fermentation. From this special fermented tea, a new norisoprenoid, 3R,9R-oxido-5-megastigmene, was isolated, together with α-linolenic acid, strictin, isovitexin, astragalin, (+)-catechin,...