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119results about How to "High enzyme production" patented technology

Method for preparing algin oligosacchride by using algin lyase

The invention relates to a method for preparing algin oligosaccharide by using algin lyase Agarivorans albus YKW-34, which is characterized by comprising the following steps: firstly preparing enzyme liquid of the algin lyase Agarivorans albus YKW-34, dissolving algin in water, adding the prepared enzyme liquid into the solution, decomposing the algin for 2 to 180 hours in a water bath at a temperature of 20 to 55 DEG C, raising the temperature to between 60 and 100 DEG C, inactivating the algin, filtering the algin by a film, and condensing, freezing and drying the algin to obtain the algin oligosaccharide. The method has the advantages that a culture medium for preparing the algin lyase has economic and simple compositions; the algin lyase has high yield, unique Na<+> / K<+> ion dependence, superior temperature and pH stability and high specific activity, and can degrade seminose half aldehyde and guluronic acid fragments of the algin at the same time; and the produced algin oligosaccharide with the polymerization degree of 2 to 12 has favorable application prospect.
Owner:OCEAN UNIV OF CHINA

Microorganism polyzyme additive agent for improving pigling growth and development

The invention relates to a microorganism multienzyme additive for promoting the growth and development of baby pigs, which is characterized in that the additive is formed by composite synchronizing solid fermentation of a composite strain stock solution, carbon source, nitrogen source, inorganic salt and enzyme revulsant. A manufacturing method is that all the strains adopt a composite inducing technology to carry through filtering; a method of synchronizing liquid culture and solid composite culture is adopted to lead all the strains to be cultivated in the same culture medium; the total number of live bacterium reaches 3 billion / g and simultaneously a fermented product is kept completely. The product comprises massive physiological metabolism substances like active enzyme, small peptide, oxidation resistance substances, FAA, vitamins, etc. A specific type for feed preparing particles carries through a double-layer microcapsule peridium treatment on the strains that can not resist heat. The invention has the advantages of promoting the digestive absorption on the feed by the baby pigs, promoting the compound of organism protein and full utilization, increasing the disease resistance and immunological competence of the baby pigs, improving the feed switching rate and the production capacity of cultivated animals, reducing the pollution to the environment caused by animal dejecta. The invention is a green and safe agrotechnical product.
Owner:SHANGHAI CHUANGBO ECOLOGICAL ENG

High-yield 'cellulose, hemicelluloses and lignin enzyme' straw decomposition additive and preparation method thereof

The invention relates to a high-yield 'cellulose, hemicelluloses and lignin enzyme' straw decomposition additive and a preparation method thereof. The high-yield 'cellulose, hemicelluloses and ligninenzyme' straw decomposition additive comprises the following preparation raw materials: a cellulose, hemicelluloses and lignin enzyme mixture, plant materials, sugar and urea, wherein the cellulose, hemicelluloses and lignin enzyme mixture consists of cellulase bacillus subtilis fermentation liquor, a rhizopus oryzae fermentation substance and ligninase white-rot fungi fermentation liquor; the weight ratio of the cellulase bacillus subtilis fermentation liquor to the rhizopus oryzae fermentation substance to the ligninase white-rot fungi fermentation liquor is 3-7 to 5-10 to 5-10. By adoptingthe high-yield 'cellulose, hemicelluloses and lignin enzyme' straw decomposition additive provided by the invention, different bacterial florae can harmoniously coexist and be mutually promoted, an effect of complementary advantages can be achieved, the effective viable count can be increased, the enzyme yield can be increased, cellulose, hemicelluloses and lignin in crop straw can be rapidly andeffectively decomposed, and rapid treatment and circulation of straw biomass resources can be achieved.
Owner:三门峡龙飞生物工程有限公司

Bacillus subtilis with antibacterial activity and application of bacillus subtilis

The invention discloses bacillus subtilis JYM841 with antibacterial activity. The bacillus subtilis is preserved in a China center for type culture collection in January 10, 2014, and the preservation number is CCTCC NO: M 2014012. The bacillus subtilis JYM841 has a strong inhibitory effect on staphylococcus aureus and candida albicans, is high in antibacterial activity, wide in antibacterial spectrum, high in enzyme production, sensitive to bacterial antibiotic, drug-resistant to fungal antibiotic, high in heat-resisting ability and tolerant to acid and alkaline, has high antibacterial activity after treated at the temperature of 100 DEG C for 20min, and has tolerance to various enzymes such as trypsin, papain and protease K. An acid and alkali resistant pH (potential of hydrogen) value ranges from 6 to 10, and metabolite is stable, so that the bacillus subtilis can be applied to preparation of medicines for treating genital tract infection.
Owner:山东宝来利来生物工程股份有限公司

Detoxifying agent for biologically degrading ochratoxin A in feeds and preparation technology of detoxifying agent

The invention relates to a detoxifying agent for biologically degrading ochratoxin A in feeds and a preparation technology of the detoxifying agent. The detoxifying agent comprises 40-60 parts of bentonite, 20 parts of immune polysaccharides, 10-20 parts of a free-radical scavenger and 20-30 parts of bacillus subtilis powder for degrading the ochratoxin A, wherein the bacillus subtilis powder is prepared through the following steps of (1) performing seed liquor activation on original strains, and performing mother seed culturing in a first-class fermentation tank loaded with culture mediums; (2) performing amplified culturing on mother seed culturing liquor in a second-class fermentation tank loaded with LB culture mediums; and (3) separating thalli from fermentation liquor, performing concentration, and performing drying so as to prepare the bacillus subtilis powder for biologically degrading the ochratoxin A. The bacillus subtilis powder, a first-time mixture and a second-time mixture in parts by weight are compounded so that a finished product of the detoxifying agent is obtained. According to the detoxifying agent disclosed by the invention, the degradation rate of the detoxifying agent for the ochratoxin A is as high as 92% or above, the degradation efficiency is high, and defects of an adsorbent are overcome; and besides, immune polysaccharide and free-radical removing ingredients are added to products, so that the functions of protecting the liver and enhancing the immunity of organisms can be achieved, and the effects are obvious.
Owner:北京科润生科技发展有限公司

Bacillus amyloliquefaciens and method for producing chymosin by fermenting using same

The invention relates to Bacillus amyloliquefaciens and a method for producing chymosin by fermenting using the same and belongs to the technical field of microbial fermentation. The invention discloses a bacterial strain for producing the chymosin. The bacterial strain is named as Bacillus amyloliquefaciens JUN002 and is collected in China Center for Type Culture Collection, wherein the collection number is CCTCC No:M2011045. The method for producing the chymosin by using the bacterial strain through liquid fermentation comprises the following steps of: performing slant culture; (2) performing seed culture; and (3) performing liquid fermentation culture, namely inoculating cultured seeds into a fermentation culture medium according to the inoculation quantity of 0.1 to 0.2 percent to culture the seeds at the temperature of between 32 and 36 DEG C for 60 to 72 hours. The Bacillus amyloliquefaciens and the method for producing the chymosin by fermenting using the same have the advantages that: the chymosin is produced by using the Bacillus amyloliquefaciens CCTCC No:M2011045 through liquid fermentation, so the enzyme production level is high, the fermenting time is short, growth conditions are easy to control and the like; and the method is completely suitable for application to industrialized production.
Owner:四川生力源生物工程有限公司

Pectinase producing bacterial strain and application in preparation of peeled citrous complex enzyme

The invention provides a pectinase producing bacterial strain, namely Asperillus niger WZW001, and an application in preparation of pectinase and peeled citrous complex enzyme. The strain is preserved in the CCTCC (china center for type culture collection) on Oct. 12, 2012, and the preservation No. is CCTCC No: M2012399. The peeled citrous complex enzyme prepared by the Asperillus niger WZW001 has the advantages of low production cost, specificity and efficiency, stable application and the like; during the application, as long as the Asperillus niger WZW001 strain fermentation liquor is used for preparing solid pectinase or is separated and purified to obtain PL, Exo-PG, and PE single enzyme elements, and one or more of the solid pectinase or the single enzyme elements is compounded with marketed cellulose without adding other enzymes, so that the orange capsule can be efficiently removed. According to the pectinase producing bacterial strain and the application, the problem of high cost of enzyme for an enzyme-method capsule removing process at present is solved, the replacement of the process to an acid-alkali chemical method is facilitated, and the energy-saving, emission-reduction, green and efficient production of the orange deep processing industry in the country has practical significance.
Owner:重庆檬泰生物科技有限公司

Method for preparing phosphoglyceric oxidase using inducing culture substrate chain coccus

This invention is with the guide hammer bacterium of culture medium preparation Lin the method of sour glycerine oxidize enzyme. The group of culture medium divides and cultivates condition: Bevel guides culture medium, draw thing by yeast , egg white Dong , glucose , Lin the mixture salt solution of 2 sour hydrogen potassiums, glycerines, agars, the magnesiums of sulphuric acid, chlorination manganese, common salts and pH6.8s forms; Seed culture medium draws thing and egg white by yeast Dong , glucose , Lin the mixture salt solution of 2 sour hydrogen potassiums, glycerines, the magnesiums of sulphuric acid, chlorination manganeses, common salts and pH6.8s forms; Seed culture medium draws thing and egg white by yeast Dong , glucose , Lin the mixture salt solution of 2 sour hydrogen potassiums, glycerines, the magnesiums of sulphuric acid, chlorination manganeses, common salts and pH6.8s forms; Ferment culture medium draws thing and egg white by yeast Dong , Lin the mixture salt solution of 2 sour hydrogen potassiums, glycerines, the magnesiums of sulphuric acid, chlorination manganeses, common salts and pH6.8s forms. Bacterial strain is cultivated by bevel, seed is cultivated , revolving shaking table ferments to train , enlarging again collect bacterium body after training , adoption assembles glycol - the two water of ammonium sulphate appearance extraction and the layer of two steps Xi purification gets Lin sour glycerine oxidize enzyme.
Owner:王腾 +1

Clean and effective preparation of oligoxylose

InactiveCN1613879AImprove efficiencyStrong production capacityOligosaccharidesFermentationChemistryXylanase
A clean an effective preparation of oligoxylose is carried out by: making xylan solution bydissolving xylan in water or buffering liquid, adding xylanase into it to obtain an enzyme hydrolystic liquid, adding alcohol, centrifuging to obtain supernatant, separating to obtain oligoxylose. It costs low, has no pollution, and is effective. Its product likes natural one.
Owner:NANJING NORMAL UNIVERSITY

Chitosanase OUC-CsnCA and application of chitosanase OUC-CsnCA

The invention discloses chitosanase OUC-CsnCA. The amino acid sequence of the chitosanase OUC-CsnCA is as shown in SEQ ID NO. 1. The invention also discloses a gene for encoding the chitosanase OUC-CsnCA, and the nucleotide sequence of the gene is shown as SEQ ID NO.2. The invention also discloses a preparation method of the chitosanase OUC-CsnCA. The invention also discloses application of the chitosanase OUC-CsnCA in degradation of chitosan / preparation of chitosan oligosaccharide, and further relates to application of the chitosanase OUC-CsnCA in preparation of an enzyme preparation for degrading chitosan. The chitosanase OUC-CsnCA disclosed by the invention is used for degrading chitosan to generate chitosan oligosaccharide, the optimum pH value of the chitosanase OUC-CsnCA is 8.0, theoptimum reaction temperature of the chitosanase OUC-CsnCA is 55 DEG C, and the specific enzyme activity of the chitosanase OUC-CsnCA is 1786.227 U / mg; in addition the enzyme activity and the enzyme production level are high, wherein the protein concentration after purification is 1.284 mg / ml, and compared with reported chitosanase, the chitosanase has certain advantages. The chitosanase OUC-CsnCAdisclosed by the invention has important industrial application value and economic value.
Owner:OCEAN UNIV OF CHINA
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