3results about How to "Controllable fermentation process" patented technology

The utility model relates to the technical field of black tea fermentation, in particular to a heating and humidifying device of a black tea fermentation room, which comprises a room body, a turning mechanism, an interlayer humidifying mechanism, a heating mechanism and a heat exchange mechanism, a ground clearance seat is arranged at the bottom of the room body, and a generating bin is arranged at the top of the ground clearance seat. The turning mechanism and the interlayer humidifying mechanism are matched to work, black tea is uniformly humidified and moisturized, the purposes of improving the water content of fermented leaves and promoting fermentation of the black tea are facilitated, the fermentation process in various air temperature environments becomes controllable, the black tea fermentation capacity and product quality are greatly improved, and the production cost is reduced. The heating mechanism and the heat exchange mechanism cooperate with each other to work, so that air heat exchange is facilitated, black tea on the top-layer conveying unit is conveniently heated, the blank is heated in time, rolled leaves are promoted to be fermented in time, the fermentation efficiency of the black tea is improved, targeted temperature control of the device is also facilitated, and the production efficiency of the black tea is improved. And controllable fermentation of the black tea is facilitated.

This invention relates to the fields of microbial fermentation and genetic engineering technology, specifically disclosing a method for preparing human type III collagen fragments. Based on Pichia pastoris, this invention constructs a multidimensional synergistic expression system of "molecular chaperone co-expression - precursor supply - osmotic pressure adaptation regulation," reducing the structural instability of collagen fragments during secretion and post-processing, and constructing an expression system suitable for stable and efficient secretion of collagen fragments. The method described in this invention can achieve efficient extracellular secretory expression of human type III collagen fragments, and the obtained protein has high structural uniformity and stability, with a protein yield of up to 6.55 g / L under 5 L fermenter conditions. The method described in this invention is suitable for the large-scale preparation of human type III collagen fragments and provides a new technical solution for obtaining collagen products with high structural uniformity and good functional activity.

The invention provides asparagus composite fruit wine and a preparation method thereof, and belongs to the technical field of fruit wine brewing. The preparation method comprises the following steps: freezing and thawing rhizoma polygonati, lucid ganoderma, fructus lycii, fructus mume, radix astragali, semen cassiae and radix salviae miltiorrhizae, crushing to obtain traditional Chinese medicine powder, mixing the traditional Chinese medicine powder with water, decocting, and filtering to obtain filtrate A; performing freeze drying and superfine grinding on asparagus to obtain asparagus powder, mixing the asparagus powder with water, performing enzymolysis, and filtering to obtain filtrate B; mixing and pulping the filtrate A, the filtrate B, longan aril, red dates, lily and water, inoculating strains for primary fermentation, then adding cane sugar for secondary fermentation, finally adding honey for tertiary fermentation to obtain fermentation liquor, and clarifying and sterilizing the fermentation liquor to obtain the asparagus composite fruit wine. The asparagus is used as a main raw material, traditional Chinese medicinal materials are added on the basis for compounding, and the prepared asparagus composite fruit wine is fresh and cool in taste and has the functions of resisting oxidation, improving immunity and the like.