34 results about "Gelatin hydrolysate" patented technology

The invention relates to a biological agent against crucifer club root and application thereof, belonging to the technical field of bio-pesticide. The strain for production is Bacillus subtilis XF-1, whose preserving number is CGMCC NO.2357. The stain has the characteristics as follows: (1) the primary colony on the LB culture substrate is white and round having a wet surface; the later colony islight yellow having uneven edge with dry and crimple surface; observed from the microscope, the strain is short-bar shaped and movable with spore, peritricha and dimension of 0.7 - 0.8 * 2.0-2.4 mum;(2) the strain is Gram-positive and aerobic and makes use of glycogen, sugar, citrate, gelatin hydrolysate, starch and casein, but does not make use of cellulose, tyrosine and catalase positive; (3) the stain has the function of sterilization, disease prevention, and yield improvement. The embodiment of the invention is as follows: using the test tube of Bacillus subtilis XF-1 stain, shake cultivation, and culture solution for fermentation to prepare biological agent, then applying the biological agent to the rhizosphere soil of crucifer crops, thereby having good effect in preventing and treating, and simple production.

The invention discloses a method for preparing a water-based polyurethane / collagen / hydroxyapatite composite material, which comprises the following components in parts by weight: diisocyanate, polyester polyol, chain extender, water-based chain extender, neutralizer, Hydrolyzed Collagen Solution, γ‑Glycidyl Etheroxypropyl Trimethoxysilane (KH560), Calcium Chloride, Disodium Hydrogen Phosphate. In the present invention, polyester-type water-based polyurethane (WPU) prepolymer and biochemical grade gelatin hydrolyzate (GH) are used for emulsion polymerization, and KH560 is further modified by external linking to improve the hydrophobicity of the material and the toughness of the film, so that WPU and GH graft copolymerization compound emulsion (WPU‑g‑GH). The aim is to prepare a nano-HAP composite material with good mechanical properties, structural stability, biocompatibility and degradability, which is expected to become a potential bone scaffold repair material.

The invention discloses a method for preparing a magnetic adsorption material from animal and plant wastes, and solves the problems that an existing magnetic adsorption material is poor in biodegradability and difficult to recycle, and the adsorption performance needs to be improved further. According to the technical scheme, crude fiber plant dregs are used as raw materials for preparation, hollow hydroxyapatite / copper ferrite nanoparticles are prepared through nanofiber crystallization, hydroxyapatite molding, medium-temperature template removal and copper ferrite loading, gelatin hydrolysate is prepared by ingeniously using animal waste gel, and hollow porous hydroxyapatite / copper ferrite nanoparticles are supported through crosslinking. According to the method, the process is simple, reaction conditions are mild, the raw materials are simple and easily available, the production cost is low, the method is easy to operate, the prepared adsorption material has high porosity and largespecific surface area, the adsorption performance of the material is greatly improved, the method has the advantages of repeated utilization and stable adsorption efficiency, complex water pollution can be treated, the recycling reproducibility and biodegradability are good, and the method is environmentally friendly.

The invention discloses a method for modifying superfine fiber synthetic leather based on an amino-terminated hyperbranched polymer. The amino-terminated hyperbranched polymer is introduced into superfine fiber synthetic leather base cloth subjected to moderate acid hydrolysis through a cross-linking agent capable of crosslinking with amino and carboxyl to increase amino active groups, and then the cross-linking agent is added again to crosslink with gelatin hydrolysate to improve binding capacity of the gelatin hydrolysate and remarkably increase hydrophilic groups inside the base cloth. Simultaneously, a conventional natural leather processing technology is adopted to perform dyeing, grease adding, coating, middling and other operations to modified base cloth, and an imitated natural leather product with performance nearly equal to the natural leather performance is produced. By means of the method, hygienic performance and dyeing performance of products are nearly equal to those of the natural leather, and the products have elasticity, fullness and natural appearance of natural leather products. Simultaneously, the method does not relate to organic solvents, thereby solving the problem that a large number of organic solvents are used in the finishing process after existing superfine fiber synthetic leather is synthetized.