六堡茶、黑茶茶粉和普洱(熟茶)茶粉对Wistar大鼠调节血脂及抗氧化功能的比较研究  

Comparative Study on Effect of Fermented Pu-erh Tea Powder,Dark Tea Powder and Liupu Tea on Regulation of Blood Lipid and Antioxidant in Hyperlipidemia Model Rats

作　　者：赵宝权[1] 邵宛芳[1] 刘家奇[1] 赵博[1] 王鸿强 马溪懋 郭涛[1] 侯艳[1] 

机构地区：[1]云南农业大学龙润普洱茶学院,云南昆明650201

出　　处：《云南农业大学学报》2013年第2期236-241,共6页Journal of Yunnan Agricultural University

基　　金：现代农业产业技术体系建设专项资金资助(CARS-23);国家科技支撑计划课题(2007BAD58B04);云南省生物资源创新办科技项目(2007YNCXB-01-01)

摘　　要：比较六堡茶、黑茶茶粉和普洱(熟茶)茶粉对高脂血症Wistar大鼠的降血脂和抗氧化作用。将Wistar大鼠随机分为正常对照组、高脂模型组、药物组以及六堡茶、普洱(熟茶)茶粉和黑茶茶粉[低、中、高剂量组,即0.5,1.0,2.0 g/kg(bw)]。试验大鼠灌胃授试茶样水浸提物30 d后采血牺牲,取血分离血清测定血清中总胆固醇(TC)、甘油三酯(TG)、高密度脂蛋白胆固醇(HDL-C)等血脂指标,并摘取大鼠肝脏匀浆测定超氧化物歧化酶(SOD)活力、谷胱甘肽过氧化物酶(GSH-Px)活力及丙二醛(MDA)含量。六堡茶能够显著降低试验大鼠血清中TC,TG含量(P<0.05),普洱(熟茶)茶粉、黑茶茶粉对于控制大鼠血清中TC,TG含量效果不明显(P>0.05);普洱(熟茶)茶粉能够显著提高肝组织细胞中GSH-Px酶和SOD酶活力,且能够降低MDA含量(P<0.05)。六堡茶调节血脂水平功效显著优于黑茶茶粉及普洱(熟茶)茶粉,而普洱(熟茶)茶粉抗氧化能力显著好于六堡茶及黑茶茶粉。The protective effects of Pu-erh tea powder,dark tea powder and Liupu tea on high-fat diets induced lipid and Antioxidant function in Wistar rats were investigated.Eighty Wistar rats were divided into normal group,hyperlipidemia model group,fermented Pu-erh Tea powder group,dark tea group,low,medium and high dose group of the Liupu Tea,which were 0.5,1.0,2.0 g/kg(bw),respectively.All rats were sacrificed after 30 days′ test.Biochemical indicator including superoxide dismutase(SOD),glutathione peroxidase(GSH-PX),malondialdehyde(MAD) in liver tissue and TC,TG,HDL-C in blood serum were determined.Liupu tea could significantly reduced content of TC,TG in serum(P<0.05),Pu-erh tea powder,dark tea powder didn′t have a obvious effect In this respect.Pu-erh tea powder has a significantly effect on improving GSH-Px enzyme and SOD enzyme activity in liver tissue,and reducing the MDA content(P<0.05).Liupu tea has a better efficacy of protection to the lipid than fermented Pu-erh tea powder and dark tea powder,but fermented Pu-erh tea powder is more effective than dark tea powder and liupu tea on oxidation resistance effects.

关 键 词：普洱(熟茶)茶 六堡茶 黑茶 血脂 抗氧化 

分 类 号：S571.1[农业科学—茶叶生产加工] S853.7[农业科学—作物学]