关键词: 紫娟茶, 化学成分, 抗氧化活性, 抗炎活性

Abstract: This paper reported the chemical constituents and their anti-inflammatory and antioxidative activity of biological of Zijuan tea.Zijuan tea is known for purple-colored buds,leaves,stems,calices,peduncles and tea infusion.It was bred from an individual Yunnan Daye Camellia sinensis var. assamica in Yunnan province of China.In this study,column chromatography and high-performance liquid chromatography (HPLC) analysis were used for isolation and purification,12 known compounds were isolated.The structures of them were determined by detailed analysis of their NMR spectra and chemical evidences.The known compounds were identified as kaempferol (1),quercetin (2),(-)-epicatechin-3-O-gallate (3),(+)-epicatechin (4),myricetin (5),epigallocatechin-3-O-(3″-O-methyl) gallate (6),gallic acid (7),epigallocatechin gallate (8),3-O-galloyl quinine (9),strictinin (10),1,4,6-tri-O-galloyl-β-D-glucose (11),caffeine (12),which compound 9 were the first reported from Zijuan tea.Among of them,compound 11 showed favorable antioxidant activity,and compounds 1,3,4,6,8-11 all had significant anti-inflammatory activities.

Key words: Zijuan tea, chemical composition, anti-inflammatory activity, antioxidant activity