The Biochemical Test and Analysis of Three Yams’s Quality Index

In order to find the yam of good quality,this paper compared the fresh dry goods discount rate and alcohol extracts of polysaccharides,proteins and other targets from Henan Dioscorea opposita Thunb in the Wuhan market.The experimental data showed that Henan Dioscorea opposita Thunb and Hubei Dioscorea zingberensis C.H.Wright had a better quality.The polysaccharide content and the proteins’ content in Hubei Dioscorea zingberensis C.H.Wright was 58.36 percent and 26.75 percent highter than that in Henan Dioscorea opposita Thunb.Hence,Hubei Dioscorea zingberensis C.H.Wright was of the best quality,cost-effective and worth of recommendation.