4results about How to "Consistent activity" patented technology

The invention discloses a pipeline type multi-stage biological deodorization device which comprises a bio-trickling filter structure section, a connecting device, a pre-wetting structure section and a fine treatment structure section, and the connecting height of the bio-trickling filter structure section and an odor output pipe can be adjusted through the bio-trickling filter structure section; the connecting device is arranged at the rear end of the top of the bio-trickling filter structure section; the pre-wetting structure section is arranged at the left moving end of the connecting device; the biological filtration fine treatment structure section is arranged at the right side moving end of the connecting device and can drive a center component in the top of the biological trickling filtration structure section to rotate and stir in a limiting manner, and the connecting device can drive the pre-wetting structure section and the biological filtration fine treatment structure section to synchronously expand and contract; the fillers in the left end and the right end of the top of the bio-trickling filter structure section are clamped and fixed; in conclusion, flexible adjustment, linkage and quick connection and disconnection of the structural sections are achieved through multiple assemblies, and the odor purification quality and the deodorization efficiency are high.

This invention provides a method for producing single-cell protein using a mixed bacterial culture, comprising the following steps: performing primary seed culture on methanogenic bacteria, *Tricholoma materata*, and *Glucosinolate methyl-eating bacteria* to obtain primary seed solutions; mixing the primary seed culture solutions evenly to obtain a mixed bacterial solution; inoculating the obtained mixed bacterial solution into a secondary seed culture medium for cultivation to obtain a secondary seed solution; inoculating the obtained secondary seed solution into a fermentation medium for scale-up cultivation to obtain a fermentation broth; separating the solid and liquid components of the obtained fermentation broth, harvesting the bacterial cells, and obtaining single-cell protein. This method for producing single-cell protein using a mixed bacterial culture improves the utilization rate of the carbon source methane and the yield of single-cell protein.

The utility model relates to the technical field of green plum wine production discloses a kind of fermentation devices for green plum wine production, including heat preservation fermentation barrel, the heat preservation fermentation barrel top is provided with barrel cover, heat preservation fermentation barrel inside is provided with rotating pipe component, the barrel cover top is provided with rotating cover component, the rotating cover component one side is provided with motor gear component, rotating cover component top is provided with circulating pump machine, the rotating pipe component top one end is provided with heat exchange connecting pipe through rotating cover component, rotating pipe component top other end is provided with pump machine connecting pipe through rotating cover component, the circulating pump machine top is provided with heat exchanger;The utility model heat preservation fermentation barrel component can reduce the heat exchange efficiency of barrel wall and outside, to avoid temperature stratification in barrel further, and can adjust plum wine temperature in barrel by rotating pipe component, so that temperature is more uniform respectively, ensure that yeast activity is consistent, shorten fermentation period, improve production efficiency.

The invention provides a recombinant strain for producing [Fe-Fe] hydrogenase as well as a preparation method and application of the recombinant strain. The recombinant strain provided by the invention uses model bacteria escherichia coli as an expression host, the preparation method is simple, and the obtained hydrogenase has higher activity and can be further used in the field of research of biological energy.