48results about How to "Fermentation conditions are easy to control" patented technology

The invention relates to a brewing process of xiaoqu elegant white wine by using small-capacity ceramic jar fermentation. The brewing process comprises selecting grains, washing the grains, soaking, cooking, spreading and airing, mixing with yeast, saccharifying, fermenting and distilling steps; and the brewing process is characterized by adding yeast-mixed and saccharified fermented grains to a ceramic jar, pottery jar or porcelain jar, uniformly compacting, adding water the amount of which is 90-120% the weight of the fermented grains, sealing and fermenting, adjusting the ambient temperature to guarantee that the internal temperature of the fermentation jar reaches 38-40 DEG C in winter and spring and 33-36 DEG C in summer and autumn within 72 hours, maintaining the ambient temperatureat 24-26 DEG C after the fermented grains is added to the jar for 90-120 hours, and after the fermentation is carried out for 6-8 days or the residual sugar in the fermented grains is approximate to zero, pouring the fermented grains into a retort pot for distilling. In the brewing process provided by the invention, a small-capacity ceramic jar is used as a fermentation container, thereby facilitating cleaning and disinfection, improving wine quality and taste and improving wine yield; and the white wine brewed by the brewing process provided by the invention has elegant and pure flavor as well as mellow, sweet and refreshing taste, and is gentle, natural, harmonious and joyful.

The invention discloses a method for producing an aerobic fermentation photosynthetic bacteria livestock culturing feed additive, belonging to the field of microbial fermentation. The technical problem to be solved of the invention is to provide a method for producing an aerobic fermentation photosynthetic bacteria livestock culturing feed additive which has stable quality and low energy consumption. The adopted technical scheme comprises the followings steps of: performing strain amplification culture, inoculating marsh rhodopseudomonas in an amount 8-12 percent based on the volume of an amplification culture medium, and fermenting at the temperature 27 DEG C and the light intensity 1,000-3,000 lux for 3-4 days to obtain a strain culture fluid; performing fermentation production: inoculating bacteria in an amount 10-18 percent based on the volume of the fermentation culture medium at the temperature 29 DEG C, stirring at the speed 100 r / min, keeping the solved oxygen at 1.8 mg / L in a tank with sterile air, and keeping the internal pressure of the tank at 0.02-0.04MPa; and fermenting for 5 days under the dark condition to obtain the photosynthetic bacteria livestock culturing feed additive. Compared with the prior art, the method has the advantage that: the energy consumption of fermentation production is lowered.

The invention relates to the field of biotechnology, in particular to a lysine bacillus ZCGT05 and its application. The present invention provides a bacterial strain with a preservation number of CGMCC NO.16935, and discloses the application of the bacterial strain to produce chitin deacetylase. The present invention also provides the screening and cultivation of the bacterial strain and the preparation of chitin deacetylase In the method, the bacterial strain is fermented and centrifuged, and the supernatant can be a chitin deacetylase solution. And after several experiments, the optimal fermentation condition for the strain to produce chitin deacetylase is provided.

The invention discloses a Paenibacillus polymyxa GY40 strain, and its preservation number is: CGMCC NO.14481. The invention also discloses a spore-forming fermentation culture method of the Paenibacillus polymyxa GY40 strain and a method for preparing bacteria powder and wettable powder by using the Paenibacillus polymyxa GY40 strain. The bacterial strain of the present invention has the advantages of strong salt tolerance, low growth temperature, and strong antibacterial effect that terrestrial microorganisms do not have; its spore-forming fermentation method has a simple formula, and the raw materials are mainly agricultural product leftovers, with low price, wide sources, and rapid growth of the bacterial strain. Fast, low fermentation temperature, short fermentation time, easy control of fermentation conditions, high yield of fermentation spores, reduced cost of raw materials, reduced energy consumption of fermentation, improved fermentation production efficiency, the wettable powder prepared by this strain has good control Wheat head blight and cucumber wilt can be used for wheat and cucumber planting.

The invention discloses a low-temperature protease-producing Microbacterium siberia ( Exiguobacterium sibiricum ), preserved in the China General Microorganism Culture Collection and Management Center with the preservation number of CGMCC No.20358. The low-temperature protease-producing Exiguobacterium siberia was screened from Antarctic krill, and its optimum growth temperature and optimum enzyme-producing temperature are both close to the temperature in the natural environment, so the heating or cooling process can be omitted during the fermentation process. The optimal reaction temperature of the protease produced by this strain is about 37°C, and it has good catalytic activity (more than 60% of the highest catalytic enzyme activity) between 0-60°C, with low temperature adaptability and good thermal stability. sex.