Separation and Identification of A Chymosin Producing Bacterium from Soil of Yak Grazing District in Tianzhu Country of Gansu Province
SONG Xi，GAN Bo-zhong*，HE Xiao-ling，ZHANG Wei-bing，LI Fan，LIU Xing-long
FOOD SCIENCE . 2009, (11): 158 -162 .  DOI: 10.7506/spkx1002-6630-200911035