There is more a half of the population whose main food is wheat products in China,a great nation consuming wheat products.Besides,the steamed bread has been popular food for its advantages of fantastic taste and convenient portability.The traditional sourdough steamed bread compared with the yeast steamed bread exists problems of longer fermented time and unstable quality.Nevertheless,the latter has also its disadvantages of single smell,thin flavor and low nutrition value.Based on pervious studies,sensual ...