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A new norisoprenoid and other compounds from Fuzhuan brick tea.

ABSTRACT: 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 ?-linolenic acid, strictin, isovitexin, astragalin, (+)-catechin, (-)-epicatechin, (-)-epicatechin gallate, (+)-gallocatechin, (-)-epigallocatechin, (-)-epigallocatechin gallate and gallic acid. The structures of the compounds were identified by spectroscopic means. The new compound didn't show any inhibition activity against the tested enteric pathogenic microorganisms at a concentration of 800 ?g/mL by the hole plate diffusion method.

SUBMITTER: Luo ZM

PROVIDER: S-EPMC6268391 | biostudies-literature | 2012 Mar

REPOSITORIES: biostudies-literature

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A new norisoprenoid and other compounds from Fuzhuan brick tea.

Luo Zhen-Mei ZM Ling Tie-Jun TJ Li Li-Xiang LX Zhang Zheng-Zhu ZZ Zhu Hong-Tao HT Zhang Ying-Jun YJ Wan Xiao-Chun XC

Molecules (Basel, Switzerland) 20120319 3

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, (-)-epicatechin, (-)-epicatechin gallate, (+)-gallocatechin, (-)-epigallocatechin, (-)-epigallocatechi ...[more]

PMID: 22430120

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