云南茶叶和甜茶的抗过敏活性
Studies on Antiallergic Activity of Tea and Tiancha in Yunnan
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摘要: 采用透明质酸酶体外抑制试验,测定了11种云南大叶茶种市售茶叶的抽提物,结果表明,11种茶叶均具有强抗过敏活性,其抗过敏活性高于福建乌龙茶和广西甜茶。云南甜茶成分预试验和溶剂系统提取结果表明,抗过敏成分为酚类物质,乙酸乙酯组分具有强抗过敏作用。云南大叶茶和甜茶具有极大的开发价值。Abstract: Antialergic activities of aqueous extracts of 11 kinds of teas in Yunnan were investigated by measuring their inhibitory effects on hyaluronidase from bovine testis in vitro. The results showed that the teas produced in Yunnan had strong antiallergic effect.Tiancha (Lithocarpus polystachyus) in Yunnan showed stronger antiallergic effect than Tiancha(Guangxi). Phenolic substances in Tiancha were founded to be responsible for antiallergic activity.The ethyl acetate fraction of Tiancha had a very strong antiallergic activity.
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Key words:
- tea /
- Lithocarpus polystachyus /
- antiallergic activity
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