44results about How to "Save food resources" patented technology

The invention relates to an acidic proteinase and a preparation method thereof and the acidic proteinase belongs to the microbial acidic proteinase. The invention is characterized in that 1) the enzymatic characteristics of the acidic proteinase are as follows: the optimum pH value is 2.5-3.5, the stable pH value is 2.5-6.0; the optimum temperature is 40-50 DEG C, the temperature stability range is 30-50 DEG C; and 2) the preparation method uses Aspergillus Niger which is stored in the China Center of Industrial Culture Collection (CICC) and has a preservation number of 2238, as the enzyme-producing strain and uses wheat bran as the raw material; the solid fermentation technology is adopted for preparation; the fermentation and enzyme-producing capability is not less than 47000u / g (dry yeast), the liquid enzyme yield is not less than 85% and the soid enzyme yield is not less than 80%, which all achieve the food grade sanitation standard. The invention provides the acidic proteinase and the preparation method thereof, wherein the utilization rate of the fermentation equipment is high, the byproduct of crop processing is used as the main raw material, the enzyme activity for fermentation is high, the extracting and purifying rate of enzyme is high and the production cost is low. The acidic proteinase of the invention is suitable to be used as the raw material or product additive of the products in the leather industry, the pharmaceutical industry, the brewing industry and the feed industry.

The invention provides a saving-type daily ration for laying hens during an egg laying peak. The saving-type daily ration is composed of the following components in parts by weight: 25-40 parts of corn, 5-15 parts of barley, 2-6 parts of bean pulp, 6-11 parts of corn DDGS (Distillers Dried Grains with Soluble), 1-5 parts of rapeseed dregs, 2-6 parts of peanut meal, 1-4 parts of glutamic acid residue, 3-10 parts of rice bran, 2-5 parts of rice bran meal, 3-8 parts of fermented palm kernel meal, 1-3 parts of bentonite, 1-4 parts of rice oil, 4-6 parts of stone powder with the granularity of 10 meshes, 1-4 parts of stone powder with the granularity of 20-40 meshes, 0.4-1.2 parts of calcium hydrophosphate, 0.2-0.4 part of table salt, 0.1-0.2 of baking soda, 0.07-0.15 part of probiotics, 0.05-0.15 part of choline chloride, 0.05-0.1 part of complex enzyme preparation, 0.4-1.2 parts of synthetic amino acid and 0.5-1 part of compound premix. The saving-type daily ration for the laying hens during the egg laying peak has the advantages that the corn and the bean pump are replaced by miscellaneous meals such as the palm kernel meal, the rice bran meal, the rapeseed dregs and the DDGS, the enzyme preparation, the probiotics and the like are used for improving the intestinal health conditions of the laying hens and guaranteeing the egg laying capacity and the quality of eggs, and furthermore, the breeding cost can be reduced; the saving-type daily ration make a contribution to the industry of the laying hens.