47results about How to "Improve utilization rate" patented technology

The invention provides a strategy combining metabolic engineering reconstruction with a fermentation process. On the one hand, a metabolic flow is changed to flow from a glycolysis route to an L-serine synthetic route by virtue of a metabolic engineering means, so that the sugar-acid conversion efficiency of L-serine is improved; and on the other hand, nutritional ingredients are added to meet requirements of corynebacterium glutamicum on nutrient substances after metabolic reconstruction, so that the problem of slow growth of thalli is solved, and the production strength of L-serine is improved.

The invention discloses an efficient composite carbon source for denitrification treatment of low-carbon-nitrogen-ratio wastewater and a preparation method thereof, and belongs to the field of water treatment. The preparation is prepared from, by weight, 10-25% of glucose, 3-5% of molasses, 1-5% of sodium citrate, 10-20% of glycerol, 3-5% of sodium formate, 3-8% of sodium acetate, 1-3% of inorganic phosphorus salt, 0.5-1% of microelements, 0.5-2% of growth factors and the balance water; the composite biological carbon source preparation disclosed by the invention can meet the nutrition required by microorganisms in different growth stages in a microbiota, realizes efficient denitrification of wastewater, and can improve the growth rate of the microbiota and the utilization rate of a carbonsource matrix by adding inorganic phosphorus salt, trace elements, growth factors and the like according to the quality of the wastewater, thereby further improving the biological denitrification efficiency.

The invention relates to an image recording device and a video recording method for double-face spline printing of a belt type printing machine, and belongs to the technical field of double-sided printing. At present, the printed surface and the to-be-printed surface of the cloth are printed with the same pattern, so that the use rate of the cloth can be improved, and the attractiveness of the product can be influenced due to dislocation; the image recording device comprises a printing guide belt and a cloth pressing roller, wherein a cloth guide roller, an image recording mechanism and a support are arranged above the cloth pressing roller, the printing guide belt is matched with the cloth pressing roller, the support is arranged at the rear side of the cloth pressing roller and the clothguide roller, the support is arranged on a rack of the guide belt type printing machine through connecting pieces located at the two ends of the support, and at least one image shooting mechanism isinstalled on the support according to the size of the shooting range of the image shooting mechanism and the width of the printing guide belt; the cloth pressing roller is pressed on the to-be-printedsurface of a printing fabric, and the cloth guide roller supports the printing surface of the printing fabric. The position of shape, size and distribution of the printing surface of the printing fabric and to be printed surface of the printing fabric can be coincided or basically coincided.

The invention discloses a deep fertilization device for agricultural planting, and relates to the technical field of agriculture. The deep fertilization device for agricultural planting comprises a placing plate, the placing plate is in a rectangular plate shape, and a soil turning device is arranged on the placing plate. During use, the fertilization device is used for agricultural planting, when the placing plate moves on the ground through an external driving device, the right side of a soil turning block is inclined downwards, and at the moment, a soil turning block below the placing plate is inserted into the ground during movement. At the moment, the soil turning block is in contact with underground soil while moving, part of the soil is conveyed to the rear side along with a feeding hole and discharging holes in the front side and the rear side of the soil turning block, and the soil turning block and the feeding hole and the discharging holes in the two sides of the soil turning block can accelerate turning of the ground soil at the moment; therefore, the effects that the fertilizer can directly act on the underground interior and is fully mixed with seeds in the underground interior, and the utilization and absorption rate of crops to the fertilizer is increased are achieved.

The invention discloses a preparation method of microorganism ferment calcium effervescent tablets, and belongs to the field of health-care foods. Goat bones are used as a raw material, and alkali protease and composite flavoured proteases are added for second-class enzymolysis to obtain enzymolysis collagen polypeptide liquid which is rich in amino acids; eggshells are used as raw materials for assisting in calcium ion chelating, so that the utilization rate of glutamic acid is increased, the calcium chelating rate is increased, and the dissolving state of calcium in small intestines can be maintained; casein is used as the raw material for fixing trypsin, so that casein phosphopeptides substances are prepared, and the casein phosphopeptides substances and the calcium can form a soluble complex in the small intestines belonging to weak alkali environment; and therefore, the condition that insoluble calcium phosphate precipitates in the small intestine environment being neutral and slightly alkaline, can be effectively avoided. Saccharomyces cerevisia and lactobacillus case are used for fermenting blueberry fruits, fresh oranges and celery, so that mixed fruit and vegetable fermentis prepared, and dissolving out of rich proteases, anthocyan and polyphenol nutrient components is promoted. The microorganism ferment calcium effervescent tablets have the efficacy of improving theoxidation resistance and the immunity of organisms and reducing cholesterol, and besides, are decomposed into micromolecule substances through fermentation, so that absorption by human bodies is facilitated.

The invention discloses a method for producing medium-chain alcohol by exogenous medium enhanced microorganisms. The method comprises the following steps of pretreating an exogenous medium, and performing grinding to obtain exogenous medium particles; pretreating anaerobic microorganisms and performing inoculating into a culture medium; inflating synthesis gas into the culture medium, and culturing and domesticating the microorganisms; inoculating anaerobic medium-chain alcohol production microorganisms, and performing mixing with the exogenous medium particles to obtain a fermentation systemfor producing medium-chain alcohol; and inflating synthesis gas into the culture medium containing a fermentation system, and performing reacting under anaerobic conditions to produce the medium-chainalcohol. The method also comprises two schemes of producing the medium-chain alcohol in a single-phase reactor and a two-phase reactor; According to the method, the fermentation system formed by anaerobic medium-chain alcohol production microorganisms and an exogenous medium can accelerate the absorption and conversion process of the microorganisms on the synthesis gas, and the medium-chain alcohol is produced. The exogenous medium in the fermentation system is not liable to inactivate in the reaction system, anaerobic microorganism death is not liable to cause, and the system can stably operate for 2-36 months.

The invention discloses a method for directionally producing succinic acid by CO2 biotransformation. The method comprises the following steps of: preparing a culture medium suitable for the growth of pure strains for producing succinic acid, inoculating the pure strains for producing succinic acid for culturing, and obtaining pure bacteria for producing succinic acid in an exponential growth period; treating a precursor of an active metal catalyst, and grinding to obtain solid catalyst particles; adding a substrate, an acid neutralizer and the solid catalyst particles into a biological fermentation culture medium to obtain a mixed biological fermentation culture medium; inoculating the pure bacteria for producing succinic acid into the mixed biological fermentation culture medium, and uniformly mixing under an anaerobic condition to obtain a biological fermentation system for producing succinic acid by CO2 transformation; and introducing sufficient CO2 into a reactor, and producing succinic acid under an anaerobic condition. According to the method disclosed by the invention, the substrate, the acid neutralizer and the catalyst are coupled with pure bacteria fermentation to form an optimized biological fermentation system, and the optimized system can accelerate the fixation and utilization of CO2 and can stably and directionally produce high-concentration succinic acid.