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90results about How to "Simple environment" patented technology

Fermenting production method of cordycepin

The invention discloses a fermenting production method of cordycepin, and the method comprises the following steps of: transplanting activated bacterial strain cordyceps militaris into a fermentation tank filled with a fermentation culture medium, wherein the fermentation temperature is 25-28 DEG C, and the stirring rotation speed is 150-180rpm (revolutions per minute); feeding sodium hydroxide solution and hydrochloric acid to control the pH value of fermentation liquor at 5.5-6.0; and when a carbon source is completely consumed, reducing the stirring rotation speed to be 60-80 rpm, and replenishing a water solution containing glucose and adenosine into the fermentation tank by means of intermittent feeding, wherein the whole fermentation time is 200-280 hours. According to the fermenting production method, the pH value of the fermentation process is controlled, and the energy sources and the cordycepin precursor are timely replenished, so that the fermentation process can be kept under an optimum environment, and the fermenting production method is good for the growth of thallus, and good for the transplantation of metabolic flux, therefore, the cordycepin yield can be finally up to 10.0g / L, the production efficiency reaches 0.25g / L / d, and the method is simple in process, lower in environment pollution, convenient to operate, and high in cordycepin yield.
Owner:JIANGSU FANGSHIYUANLVE SCI & TECH CONSULTING CO LTD

Production method of high-strength non-vibrated environmental-friendly smooth facing fabricated part mortar

The invention discloses a production method of high-strength non-vibrated environmental-friendly smooth facing fabricated part mortar. Raw materials of the high-strength non-vibrated environmental-friendly smooth facing fabricated part mortar comprises limestone machine-made sand, limestone powder, early-strength sulphoaluminate cement, ordinary silicate cement, composite coupling agent, water reducing agent, dispersible emulsion powder, cellulose ether, starch ether, sodium tetraborate, lithium carbonate, antifoaming agent and high-strength fiber. According to the production method, the intrinsic defect of the crisp and hard performance of the mortar is overcome, the anti-cracking and anti-leakage performance of the mortar is improved, hollowing is reduced, the bonding force is improved,the mortar is more suitable for mechanical construction and has the advantages of low addition amount and high cost performance, and the rigidity of the mortar is improved; the problems are solved that the mortar is dry and is not easily scraped, the bonding strength is low, hollowing and falling phenomena are easily caused, the shrinkage amount is large, and the surface is easily cracked; the anti-freezing, anti-leakage and water-resistant performance of the mortar is improved, and the mortar has the advantages of being high in compressive strength, fracture resistance and leakage resistance,high in strength, non-vibrated, environmentally friendly and smooth.
Owner:GUANGXI HENGXIAN HENGFENG BUILDING MATERIAL

Method for patterning quantum dot layer and method for manufacturing quantum dot color filter

The present invention provides a method for patterning a quantum dot layer and a method for manufacturing a quantum dot color filter. The method for patterning a quantum dot layer according to the present invention uses a photoresist layer having a patterned structure as a shielding layer to subject a monocolor quantum dot layer to etching to form a patterned quantum dot layer. The method simplifies the constituent components for making a quantum dot paste that is used to form a quantum dot layer and simplifying a surface chemical environment of the quantum dots to thereby increasing light emission efficiency of the quantum dot. Further, the method may manufacture a fine quantum dot pattern, greatly improving the resolution of the patterned quantum dot layer. The method for manufacturing a quantum dot color filter according to the present invention is applied to manufacturing a quantum dot color filter on the basis of the above-described method for patterning a quantum dot layer and the quantum dot color filter so manufactured has a fine quantum dot pattern, the light emission efficiency of the quantum dots being high to thereby effectively improve the resolution and backlighting utilization of a display device.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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