33results about How to "Activating enzyme activity" patented technology

The invention discloses a eucalyptus fertilizer additive, which is characterized in that it comprises the following raw materials in parts by weight: 3-6 parts of humic acid; 3-10 parts of trace elements; 3-9 parts of rare earth elements; 2-4 parts of slow-release agent ; 3-6 parts of water-retaining agent; 6-12 parts of organic matter. The addition amount of the eucalyptus fertilizer additive of the present invention in the eucalyptus base fertilizer is 5%, and the addition amount in the eucalyptus topdressing fertilizer is 7%, which can meet the large demand of various nutrient elements in the eucalyptus growth cycle, improve the fertilizer utilization rate, and improve the eucalyptus fertilizer. volume, reduce production costs, and increase forest farmers' income.

The invention provides a method for producing beer vinegar and belongs to the technical field of biological fermentation of foods. The method comprises the following key steps: adopting an intermittent wheat impregnation process (namely the impregnation temperature is 15-30 DEG C, draining and drying once every four hours, ventilating once every two hours, alternately impregnating for 2-3 days until the wheat impregnation degree is 35-50 percent) and a temperature control germination process (namely the germination temperature is 25-45 DEG C, the relative humidity is 65-85 percent, and germinating for 3-6 days) for preparing malts; performing wet grinding, and performing enzymolysis by using 0.01-0.05 percent of complex enzyme SBL-003 (based on dried malts) and 0.01-0.08 percent of complex enzyme SWB-005 (based on the dried malts); and fermenting by utilizing 0.1-1 percent of beer yeasts and 5-20 percent of acetic bacteria propagation solution (the propagation solution has the strain of 7015 and is purchased from the National Culture Collection Center), wherein the total acid content of the bacteria propagation solution is 1.5-2.0 g / 100mL, and finally obtaining the beer vinegar of which the total acid content is more than or equal to 3.8g / 100mL.

The invention relates to a triacontanol-modified chitosan compound organic fertilizer and a preparation method thereof. The composition and mass percentage of the organic fertilizer are as follows: triacontanol-modified chitosan 12-15%, grain Sodium Amino Acid 8‑10%, Potassium Laureth Phosphate 0.5‑1%, Deionized Water 74‑80%. The compound organic fertilizer of the present invention does not produce any pollution and toxic side effects to the environment and the human body while increasing crop yield and preventing and controlling diseases and insect pests, can significantly reduce the usage of traditional chemical fertilizers and pesticides, and reduce pesticide residue pollution. In addition, the organic fertilizer can be used as base fertilizer When used, it can activate the soil and prevent soil compaction.

The invention discloses a cutting propagation method of ardisia maclurei. The method comprises the steps that branches of the ardisia maclurei are pruned to cuttings; bases of the cuttings are put in rooting inducer for soaking for 6 h and taken out, and the bases are drained in shade till no water exists on the surface for standby; the cuttings treated in the second step are cut in a matrix. According to the cutting propagation method of the ardisia maclurei, a great number of ardisia maclurei seedlings can be multiplied rapidly in a short time, the advantages of being good in trait and low in cost of female parents can be kept, and a powerful guarantee is provided for seedling propagation of the ardisia maclurei and large-scale cultivation.

A method for preparing protein peptides by enzymatic hydrolysis of proteases, involving the field of biochemistry, comprising the following steps: firstly adjusting the pH of a substrate protein to 6.5-7.5, then adding flavor protease, vitamin B1, and cava, and stirring to carry out enzymatic hydrolysis reaction to obtain protein Peptide: In the method for preparing protein peptide by enzymatic hydrolysis of protease of the present invention, flavor protease is selected, and vitamin B1 and vitamin B1 are added, which can activate the enzyme activity of flavor protease and enhance the enzymatic hydrolysis of protein.

The invention relates to wrapped controlled-release fertilizers and particularly relates to a special organic-biomaterial-wrapped controlled-release fertilizer for wheat and a production process thereof. The special organic-biomaterial-wrapped controlled-release fertilizer is prepared from the following raw materials in percentage by weight: 73-75% of fertilizer core, 23-25% of wrapping layer, 1.0-1.5% of binder and 0.5% of seal brightener, wherein the fertilizer core is a special compounded fertilizer which is applied to wheat sowing after corn stalks are returned to field, and the special compounded fertilizer consists of a urea fertilizer, a diammonium phosphate fertilizer, a potassium chloride fertilizer and clay and contains 25-27% of elemental nitrogen, 15-17% of phosphorus pentoxide and 7-9% of potassium oxide; the wrapping layer is a bio-organic material which is formed through uniformly mixing, stacking and composting 70-75% of chicken manure, 20-25% of weathered coal, 4-5% of rice bran or wheat bran and 1-2% of decomposition agent; and the binder is water glass or modified starch.