Stress response of beer waste yeast in different carbon and nitrogen sources to produce live yeast cell derivative

The beer waste yeast of Yibin Corporation of Chongqing Beer Group was investigated in the different concentration and types of carbon and nitrogen source to produce Live Yeast Cell Derivative(LYCD).The results showed that the LYCD of beer waste yeast reached higher activity under conditions of carbon source concentration 1.3%(glucose as the added carbon source),nitrogen source concentration 0.20%(diammonium hydrogen phosphate as the added nitrogen source),stress time 45 minutes,and temperature 37℃.