Liquid-solid two-phase fermentation method for saccharomyces cerevisiae used for feed
A technology of Saccharomyces cerevisiae and fermentation method, which is applied in the field of fermentation and achieves the effects of low production cost, strong tolerance and solving high energy consumption
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[0051] 1. Fermentation test
[0052] The feed additive is prepared by fermenting Saccharomyces cerevisiae by a liquid-solid two-phase process, and the specific steps are as follows:
[0053] (1) Activation and rejuvenation of bacteria
[0054] The preserved Saccharomyces cerevisiae (strain preservation number ACCC20065) freeze-dried tube bacterial strain was made into a bacterial suspension with sterile water, and the bacterial liquid was diluted to 10 -8 24 hours later, pick a single colony and carry out streak isolation and culture again to obtain a single colony.
[0055] (2) preparation of slant bacteria
[0056] The formula of the slant medium is as follows: wort juice 12Bx, agar 2%, constant volume to 1L, natural pH;
[0057] Heat the slant medium to dissolve, then divide and seal the test tubes; sterilize the test tubes at 121°C and 0.15 MPa for 30 minutes, take them out and cool them for later use;
[0058] The above slant culture medium was inserted into the strai...
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