| Buckwheat is a kind of plant resource using as both medicine and food.There are two main kinds of buckwheat,common and tartary buckwheat.It has many functions,like reducing blood lipid and antioxidation,as it is rich in nutrition components and active ingredient.Most study focused on tartary buckwheat,or a particular components,which can not have a comprehensive evaluation after eating.In this paper,nutrition and function components in 7 kinds of tartary buckwheat and 3 kinds of common buckwheat were dermined,further more,The effect of reducing blood fat and antioxidationwere studied through the combination of internal and external method.Its important to offer reference for the reasonable processing and scientific consumption.Experimental results:The content of functional components,such as flavonoids,polyphenols and oligosaccharides showed significant difference but nutrition components like amino acid,fatty acid and starch had no significant difference between common and tartary buckwheat.Both common and tartary buckwheat have hypolipidemic function.Animal experiments results showed that tartary buckwheat could significantly decrease TC and TG content in serum,increase high density lipoprotein and reduce low density lipoprot-ein.Buckwheat also could improve liver tissue structure in hyperlipidemia mice,tartary buckwheat superior to common buckwheat.The study also found Chuanqiao 2 has the best effect in reducing blood lipid.Tartary buckwheat alcohol extract could inhibit expression of perilipin and Tip47 protein,reduce triglyceride levels in the cell.There were significant differences in common and tartary buckwheat,which were superior to those of common buckwheat.Buckwheat could enhance SOD enzyme activity and reduce MDA content of liver in mice.External experiments showed that the antioxidant effect of alcohol extract was better than that of aqueous extract.There were significant differences in common and tartary buckwheat,and the antioxidant effect of tartary buckwheat alcohol extract was superior to that of common buckwheat.It was verified by the internal experiments. |