【作者】 龚加顺； 陈婷； 彭春秀； 王秋萍； 周红杰；

【Author】 GONG Jia-shun~1,CHEN Ting~1,PENG Chun-xiu~2,WANG Qiu-ping~1,ZHOU Hong-jie~3 (1.Faculty of Food Science and Technology,Yunnan Agricultural University,Kunming 650201,China; 2.Faculty of Forestry and Horticulture,Yunnan Agricultural University,Kunming 650201,China; 3.Faculty of Pu-erh Tea,Yunnan Agricultural University,Kunming 650201,China)

【机构】 云南农业大学食品科学技术学院； 云南农业大学园林园艺学院； 云南农业大学普洱茶学院；

【摘要】 本实验探讨了普洱茶茶褐素对高脂SD大鼠的降血脂作用,采用生化试剂盒分析了普洱茶茶褐素对实验大鼠血清中TC、TG、LDL-C、HDL-C的动态影响。结果显示:经饲喂高脂饲料4周后,模型组大鼠血清TC、LDL-C极显著升高(P<0.01)、TG显著升高(P<0.05),说明实验用的高脂血症大鼠模型是成功的。与高脂模型组相比,饲喂茶褐素的降脂组高脂血症大鼠血清TC、LDL-C水平极显著降低(P<0.01),TG显著降低(P<0.05),而HDL-C水平则明显升高。与正常对照组相比,无显著性差异。说明普洱茶茶褐素具有降血脂作用;预防组高脂饮食大鼠由于同时饲喂了茶褐素,因此,其血清中TC、TG、LDL-C水平升高以及HDL-C水平降低均受到抑制,与正常对照组没有显著性差异(P>0.05),说明茶褐素能减少肝脏脂肪沉积,具有预防实验大鼠脂肪肝形成的作用;正常试物组大鼠虽然饲喂了茶褐素,但其血清TC、TG、HDL-C、LDL-C水平与正常对照组无显著性差异(P>0.05),这说明茶褐素对正常大鼠血脂代谢影响不大。更多还原

【Abstract】 The effects of TB extracted from Pu-erh tea on the hyperlipidmia rats were investigated in this study.The contents of TC,TG,LDL-C and HDL-C in rat serum were analyzed by using standard biochemical kits.The total of TC,LDL-C and TG in the blood serum of rats fed with high fat diet for 4 weeks was significantly increased.It suggested that the hyperlipidmia model was successfully established.It was found that the contents of TC,LDL-C and TG in serum of rats fed with theabrownin were very lower(TC,LDL-C,P<0.01,TG,P<0.05) than those of hyperlipidmia rats fed with high fat diet without theabrownin,but the content of HDL-C was obviously increased. This revealed that the theabrownin of Pu-erh tea had significant lowering lipid ability in rat serum. The contents of TC,LDL-C,HDL-C and TG in serum of precautionary group rats fed with high fat diet and theabrownin were restrained to a certain extent and had no significant difference with normal control rats(P>0.05).It was proved that the theabrownin had reduced the hyperlipidmia formation in rats.It was also discovered that the contents of TC,LDL-C,HDL-C and TG in normal rats fed with theabrownin had no significant difference(P>0.05) with blank group rats.Therefore, Pu-erh tea theabrownin had no significant effects on the lipid metabolism of normal rats.更多还原