7results about How to "Improve protein utilization" patented technology

The invention relates to the technical field of industrial microorganisms, and particularly discloses bacillus velezensis phb02 and application thereof. The invention provides bacillus velezensis phb02. The bacillus velezensis phb02 has stress resistance, can tolerate 2M salt and well grow at 42 DEG C, and the degradation rate of the bacillus velezensis phb02 to a trypsin inhibitor can reach 59.34%; the produced protease also has the characteristics of salt resistance and high temperature resistance, and the degradation rate of the protease on a trypsin inhibitor can still reach 35% under the salt concentration of 3M. The strain can be used for treating soybeans or soybean derived products through synergistic fermentation or in a mode of preparing an enzyme preparation, degrading a trypsin inhibitor in raw materials and improving the utilization rate of raw material protein, can be used for producing fermented condiments such as soy sauce and the like, remarkably improves the ammonia nitrogen level of the products and improves the quality of the products.

The present invention relates to the technical field of industrial microorganisms, and specifically discloses a strain of Bacillus amyloliquefaciens phb03 and its application. The present invention provides a strain of Bacillus amyloliquefaciens phb03, which has stress resistance, can tolerate 2M salt, grows well at 42°C, and can achieve a degradation rate of 42.26% for trypsin inhibitors; the protease produced by the strain also has the characteristics of salt and high temperature resistance, and can still maintain 57% relative enzyme activity after being stored at 50°C for 180 minutes, and can still achieve a degradation rate of 40% for trypsin inhibitors at a salt concentration of 4M. The strain can process soybeans or soybean-derived products by means of coordinated fermentation or preparation of enzyme preparations, degrade trypsin inhibitors in raw materials, improve the utilization rate of raw material protein, can be used in the production of fermented condiments such as soy sauce, significantly increase the amino acid nitrogen and total acid content in the product, and improve product quality.

The invention discloses an optimized preparation method and application of an avenin-tea polyphenol complex, belongs to the technical field of food, and solves the technical problems of poor solubility of avenin and insufficient stability of the complex. The solution is as follows: firstly, respectively weighing avenin and tea polyphenol powder and dispersing in a phosphate buffer solution; secondly, mixing the oat protein solution and the tea polyphenol solution in equal volume, fully stirring, and adjusting the pH value of the oat protein-tea polyphenol mixed solution to 9; thirdly, heating the oat protein-tea polyphenol mixed solution in a water bath; and finally, transferring into a dialysis bag, dialyzing for 72 hours, freeze-drying and storing to obtain the oat protein-tea polyphenol complex which is used for preparing a raw material for food or cosmetic processing. The oat protein and the tea polyphenol are combined through a specific technology, along with the increase of the grafting rate of the polyphenol, the physicochemical properties of the oat protein are improved, the loading capacity of the vegetable oil is improved, and the emulsion stability and the oxidation resistance are also greatly improved.

The invention belongs to the technical field of food fermentation engineering, and relates to a multi-strain for improving soy sauce quality and a brewing process thereof, the multi-strain comprises 3.042 bacteria and aspergillus niger 3.324, and accounts for 0.4% + 0.1% of the weight of raw materials; the brewing process comprises the following steps: steaming the raw materials, blowing to cool and inoculating bacterial colonies, making koji by using the bacterial colonies, mixing with saline water and fermenting, and spraying oil, the multi-strain and the brewing process thereof can improve the yield of soy sauce, and improve the protein utilization rate and the total nitrogen yield in the soy sauce in the soy sauce brewing process.

This invention relates to an enzymatically hydrolyzed protein composition as a substitute for fishmeal and its preparation method, belonging to the field of feed technology. The enzymatically hydrolyzed protein composition comprises the following raw materials: animal protease hydrolysate, brewer's yeast extract, bile acids, sodium butyrate, sodium selenite, and fructooligosaccharides. This application selects cricket powder and defatted mealworm powder as animal protein sources. Simultaneously, chitinase, alkaline protease, and neutral protease are used sequentially to enzymatically hydrolyze the cricket and mealworm complex. The cricket powder and defatted mealworm powder after enzymatic hydrolysis effectively eliminate anti-nutritional factors in the original insect feed, and have high protein utilization, effectively releasing nutrients and improving nutritional value. Based on this, brewer's yeast extract and bile acids are added for compounding, which synergistically promotes weight gain and growth in aquatic animals. Furthermore, this application uses sodium butyrate, sodium selenite, and fructooligosaccharides in combination, which effectively gives the prepared composition significant antioxidant effects from different dimensions.

The invention discloses a low-protein daily ration for broiler chickens in the later growth period and application of the low-protein daily ration, belongs to the technical field of animal feed preparation, and provides the low-protein daily ration for the broiler chickens in the later growth period. Comprising corn, soybean meal, corn protein powder, wheat flour, mountain flour, soybean oil, calcium hydrophosphate, table salt, choline chloride, broiler trace elements, DL-methionine, L-lysine hydrochloride, broiler vitamins, L-phenylalanine, L-threonine, L-arginine, L-isoleucine, L-tryptophan, L-valine, glycine, phytase, zeolite powder, potassium carbonate and sodium bicarbonate. According to the invention, the daily ration protein level of the broiler chicken at the late fattening stage of 29-42 days is reduced from 20% to 18%, essential amino acids are balanced, the crude protein content in the broiler chicken daily ration can be effectively reduced, and the protein utilization rate of the broiler chicken is improved, so that the nitrogen content in broiler chicken manure is reduced, and the pollution of broiler chicken production to the environment is reduced.

The present invention relates to the technical field of industrial microorganisms, and specifically discloses a strain of Bacillus velezensis phb02 and its application. The present invention provides a strain of Bacillus velezensis phb02, which has stress resistance, can tolerate 2M salt, grows well at 42°C, and can achieve a degradation rate of 59.34% for trypsin inhibitors; the protease produced by the strain also has the characteristics of salt and high temperature resistance, and at a salt concentration of 3M, the degradation rate of trypsin inhibitors can still reach 35%. The strain can process soybeans or soybean-derived products by means of coordinated fermentation or preparation of enzyme preparations, degrade trypsin inhibitors in raw materials, improve the utilization rate of raw material protein, can be used in the production of fermented condiments such as soy sauce, significantly improve the ammonia nitrogen level of the product, and improve product quality.