Zymomonas mobilis with resistance to acetic acid of high concentration and application thereof
A technology of Zymomonas and movement, applied in the field of microorganisms, can solve the problems of low tolerance to high concentration acetic acid, and achieve the effect of saving detoxification treatment steps
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[0026] This preparation example is used to illustrate the preparation of RM medium containing acetic acid, and the process of preparing enzymatic hydrolyzate from raw materials containing cellulose.
[0027] According to 20.0g / L glucose, 10.0g / L yeast powder, 1.0g / L MgCl 2 , 1.0g / L (NH 4 ) 2 SO 4 and 1.0g / L KH 2 PO 4 The formulation configuration of the base RM medium was obtained. Acetic acid was added to the basal RM medium so that the concentrations of acetic acid were 7.5 g / L, 8.0 g / L and 8.5 g / L, respectively.
[0028] Cut the wheat straw into small pieces of about 2 cm, then add water to adjust the water content to 30% by weight; transport it to the heat preservation pressure device, carry out steam explosion at 200 ° C and 1.8 MPa, and collect the steam explosion waste, and the obtained steam The explosive product and water at 80°C were stirred and mixed for 30 minutes according to the weight ratio of 1:3, then added a sulfuric acid solution with a concentration o...
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