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163results about How to "Low in protein" patented technology

Production method of human fibrinogen

ActiveCN101703763AEnsure product safetyLow content of impurity proteinPowder deliveryPeptide/protein ingredientsProtein contentRNA
The invention provides a production method of human fibrinogen, which is against the method that domestic conventional manufacturers extract and separate human fibrinogen from component I, and the method for extracting fibrinogen from cryoprecipitate is adopted; an S/D method and a water-bath heat treating method are adopted to carry out double-virus inactivation, thereby effectively inactivating fat enveloped virus and non-fat enveloped virus, and ensuring the security of products; the purity of extracted products reaches as high as more than 90%, the protein content of impurities is low, and the clinical side reaction of the product is small. In the production process of the human fibrinogen of the invention, glycine is utilized as a stabilizer, the freeze-drying time is prolonged about 6-8 days to ensure the temperature variation of the product to be stable in freeze-dying process, but the freeze-drying time of general manufacturers is about 3 days; after being freeze-dried for 6-8 days, the product has uniform structure, then water bath heat treatment is carried out on the product, thus the product can be evenly heated in the shortest time, thereby achieving the purposes of effectively inactivating DNA and RNA non-fat enveloped virus and simultaneously ensuring the stability of human fibrinogen.
Owner:GREEN CROSS CHINA BIOLOGICAL PRODS

Refined rice suitable for patients suffering from kidney disease and processing method thereof

ActiveCN103564306AHigh deproteinization rate and dephosphorization rateImprove quality and tasteFood ingredient functionsFood preparationNephropathyChemistry
The invention provides a processing method of refined rice suitable for patients suffering from kidney disease. The processing method comprises the following steps: (I) carrying out pretreatment, specifically, soaking the cereal raw material, separating out soaking liquid, crushing and levigating until the particle size is 10-100 meshes; (II) carrying out protease hydrolysis deproteinization; and (III) carrying out dephosphorization: dephosphorizing the cereal raw material subjected to deproteinization in the step (II) by phytase hydrolysis, or addition of yeast for fermentation, or a composite mode of phytase hydrolysis and yeast fermentation, or a composite mode of yeast and lactic acid bacteria microbial fermentation or phytase hydrolysis, yeast and lactic acid bacteria microbial fermentation; separating, cleaning, separating again, drying and crushing; and (IV) performing sieving, mixing, hardening and tempering, preheating, gelatinization, extrusion forming and drying processing on the cereal raw material processed by the step (III) to obtain the refined rice. According to the method provided by the invention, the processes of deproteinization and dephosphorization of the cereal raw material can be finished at a time, the deproteinization rate and the dephosphorization rate are high, and food raw material and products are provided for the patients suffering from kidney disease and other diseases.
Owner:成都东洋百信制药有限公司

Method for continuously cropping and ecologically breeding macrobrachium nipponensis and hydrilla verticillata

The invention discloses a method for continuously cropping and ecologically breeding macrobrachium nipponensis and hydrilla verticillata. The method is used for breeding the macrobrachium nipponensis by means of continuously cropping the macrobrachium nipponensis and the hydrilla verticillata. The method has the advantages that eutrophic substances and harmful substances such as residual feed and feces in ponds can be converted by the hydrilla verticillata owing to a technical mode for ecologically and continuously cropping the macrobrachium nipponensis and the hydrilla verticillata, and a characteristic of strongly inhibiting generation of some algae of the hydrilla verticillata is sufficiently utilized, so that purposes of purifying breeding water and ecologically breeding the macrobrachium nipponensis can be achieved; breeding byproducts such as ammonia nitrogen and nitrite in bottom sediments of the ponds can be consumed by means of planting the hydrilla verticillata, effects of purifying the bottom sediments and maintaining excellent ecological environments of the ponds can be realized, the macrobrachium nipponensis is in the suitable ecological environments of the ponds in total breeding procedures, suitable habitat environments and palatable green feed are provided for growth of the macrobrachium nipponensis by the hydrilla verticillata, the bred macrobrachium nipponensis is high in yield and good in quality, and the price of the macrobrachium nipponensis can be increased; spores and grass seeds of the hydrilla verticillata can be offered for sale, so that an extra economical benefit can be created.
Owner:LIYANG AQUATIC PROD TECH PROMOTION STATION

Galactomyces candidum and method for treating high-ammonia-nitrogen biogas slurry by using galactomyces candidum to produce single cell protein

The invention belongs to the field of biological fermentation, and particularly relates to a galactomyces candidum and a method for treating high-ammonia-nitrogen biogas slurry by using the galactomyces candidum to produce single cell protein. The invention has the following specific technical scheme: the galactomyces candidum has a preservation number of CGMCC No.18570. The method of fermenting the biogas slurry comprises the following steps: taking the biogas slurry, performing filtration to remove large-particle impurities, adding a carbon source, adjusting a carbon-to-nitrogen ratio to 6:1to 10:1, and adjusting the pH to 5.5-7 to obtain a fermentation substrate; inoculating the fermentation substrate with the galactomyces candidum grown to a logarithmic stage, and performing fermentation at 20-30 DEG C; and after the fermentation is completed, performing centrifugation on the fermentation liquid, and drying the precipitate obtained after centrifugation at 50-60 DEG C to a constantweight to obtain the required single cell protein. The method only needs a period of biological reaction to treat the biogas slurry, has a low running cost and convenient operation, has an excellenttreatment effect on the biogas slurry, and can provide high economic value products, thereby providing an integrated and economic solution for biogas slurry treatment.
Owner:CHENGDU INST OF BIOLOGY CHINESE ACAD OF S

Method for extracting human serum albumin from plasma and increasing yield

The invention relates to a method for extracting human serum albumin from plasma and increasing the yield. By adoption of the method, the problems of extracting recovered human serum albumin from the plasma and increasing the yield can be effectively solved. The adopted technical scheme is as follows: the method comprises the following steps of: combination and melting of the plasma, preparation and pressing filtration of components I, II and III, preparation and pressing filtration of a component IV, preparation and pressing filtration of a component V, precipitation, dissolving and filtration of the component V, refined purification of the component V, ultrafiltration dialysis and concentration, preparation, pasteur inactivation, bacteria removal and filling, incubation and verification; the preparation and pressing filtration of the component IV comprise the following steps of: adding physiological saline with the temperature of 0 DEG C and the volume of 1/10 of that of the supernatant of the prepared components I, II and III, using acetate buffer solution with pH of 4.0 to adjust the pH value of the solution to 5.80-5.90, adding alcohol with the temperature of minus 15 DEG C and the volume concentration of 95%, and enabling the final volume concentration of the alcohol to reach 40%. The method has the advantages that the production process is smoother and simple, the yield of the human serum albumin is increased and the economic and social benefits are large.
Owner:BANGHE PHARMA CO LTD

Method for preparing sulphated polysaccharides from abalone

The invention discloses a method for preparing sulphated polysaccharides from guts or gonads of abalone. The method comprises steps as follows: 1, the guts or the gonads of the abalone serving as raw materials are extracted with an alkaline method or an enzyme method, and an extracting solution is subjected to centrifugation; 2, supernatant liquor is adsorbed by ion exchange resin, the iron exchange resin is washed with water until a flow-out liquid is clarified, and then the flow-out liquid is eluted through two sodium chloride solutions with different concentrations and is collected; 3, desalting and concentration are performed with an ultrafiltration method, and then alcohol precipitation is performed; 4, protein is sequentially dissociated again with the alkaline method and the enzyme method; 5, the protein is removed through acid modulation, after oxidative decoloration, alcohol precipitation and precipitation dissolution are performed, salt is removed with a film filtration method, parts inside a film are collected and subjected to freeze drying, and then the abalone sulphated polysaccharides are obtained. According to the sulphated polysaccharides obtained with the method, the purity is high, the protein content is lower than 10%, a preparation condition is moderate, the damage to the structure of the abalone sulphated polysaccharides is little, and the product quality is good.
Owner:DALIAN POLYTECHNIC UNIVERSITY
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