Study on nutritional index setting in standards of dry red wine

Objective:It had been found that the polyphenols in dry red wine played an important role in human health.In order to improve wine quality and promote consumer's health, the possibility of setting nutritional index in dry red wine was explored.Methods:Popular famous-brand dry red wine in the market was chosen as the samples.The polyphenol and sugar, acidity, alcohol, dried material and mineral were determined.On the basis of nutritive materials measurement, nutritional indices and content were recommended.Results and Conclusion:It was possible to set total polyphenols, potassium, resveratrols as nutritional indices.Total polyphenols, and potassium were priority index, both of the two index could reflect the quality and quantity of grape and they were positively related (r=0.484, p<0.01) , setting the two index could increase the difficulty of adulteration, then that was resveratrols, the content of resveratrol in wine was low, but maybe it was the important biological substance.