Research Progress on Effect of Abiotic Stress on Polyphenols of Sprouted Cereal

Germination can significantly increase the content of reducing sugars,essential amino acids,free fatty acids,dietary fiber and polyphenols of grain. Abiotic stress can promote the accumulation of polyphenols in sprouted cereal,increase the germination rate and shorten the germination cycle. In this paper,the changes of polyphenols before and after the germination of five kinds of grains,such as brown rice,oats,buckwheat,wheat and barley were examined,on the other hand the changes of polyphenols under abiotic stress(including salt stress,ultrasonic stress,light stress,plasma stress and hypoxia stress)during grain germination were introduced,and briefly expounded the abiotic stress affect the germinated grain accumulation mechanism of polyphenol compounds,aiming at providing reference for grain under the condition of adversity to sprout,and offering available resources for the following-up research on the germination of grain polyphenols.