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41results about How to "Effective enzymatic hydrolysis" patented technology

Method for preparing veterinary heat-clearing and detoxifying oral liquid

The invention belongs to the technical field of preparation of veterinary Chinese medicinal oral liquid, and in particular relates to a method for preparing veterinary heat-clearing and detoxifying oral liquid. The method comprises the steps of crushing of raw medicinal materials, screening, enzymolysis, decocting, micro-filtration, ultra-filtration, reduced pressure concentration, volume setting and the like. Compared with the prior art, the method has the advantages that plant cell walls can be hydrolyzed with an enzyme more effectively, so that the dissolution rate of active ingredients of the medicinal materials is improved; and by combining the micro-filtration and ultra-filtration technologies, impurities are effectively removed from the medicinal liquid, the clarity of the solution is higher, the loss of the active ingredients of the medicinal materials is less, and the clinical treatment effect of the medicaments is well guaranteed. By reasonably matching the bio-enzyme and using the bio-enzyme to assist in extracting the active ingredients in the medicinal materials, the content of key effect ingredients in the medicinal liquid is effectively improved, so that the quality of the product is well improved, and the oral liquid has good popularization and application values.
Owner:HENAN SOAR VETERINARY PHARMA

Antihypertensive peptide derived from sardine as well as preparation method and application of antihypertensive peptide

The invention belongs to the fields of food biotechnologies and function healthcare and discloses an antihypertensive peptide derived from a sardine as well as a preparation method and application of the antihypertensive peptide. The method comprises the following main technical steps of after pretreating the sardine to obtain homogenate, adding papain to carry out enzymolysis firstly, and then, adding an alkaline protease to carry out enzymolysis; deactivating the enzyme after enzymolysis is finished, and centrifuging the enzyme-deactivated enzymatic hydrolysate; taking the centrifuged supernatant, and separating and purifying a crude product by using an ultrafiltration and gel chromatography method; carrying out freeze-drying on the separated and purified efficient component to obtain the antihypertensive peptide derived from the sardine. The sardine is high in yield and low in price, so that the comprehensive utilization value of the sardine can be sufficiently increased when the sardine is used as the raw material to prepare the antihypertensive peptide; in addition, the antihypertensive peptide derived from the sardine and obtained through enzymolysis is free of safety problems and side effects of chemical antihypertensive drugs and ideal in antihypertensive effect.
Owner:JINAN UNIVERSITY

Method for preparing heavy metal adsorbing material by modifying silk fiber and application of material

The invention provides a method for preparing a heavy metal adsorbing material by modifying silk fiber and application of the material and belongs to the technical field of adsorbing materials. The method disclosed by the invention comprises the following steps: (1) pretreatment: taking raw silk of silkworms in the current year, putting the raw silk into a weak alkaline solution, adding lipase, alkaline protease and a surface active agent, utilizing ultrasonic wave to treat, soak and boil the raw silk and then utilizing water to washing the raw silk; (2) constant weight: putting the cleaned silk into a freezing and drying box to be dried, then weighing the dried silk, then freezing and drying the silk and then weighing the silk; (3) detection: sampling the constant-weight silk and utilizing a picric acid carmine reagent to detect the silk; (4) modification: directly soaking fibroin in a neutral protease solution, performing ultrasonic wave treatment and then freezing and drying to constant weight to obtain the needed adsorbing material. The preparation method of the novel heavy-metal adsorbing material disclosed by the invention is low in cost, high in efficiency, simple in technology, convenient to operate and convenient for large-scale application.
Owner:HEZHOU UNIV

Preparation method of sugarcane dietary fibers and sugarcane dietary fibers

InactiveCN107692243AReduce non-dietary fiber contentHigh purityFood scienceFiberSwelling capacity
The invention discloses a preparation method of sugarcane dietary fibers. The preparation method comprises the following steps of pretreatment, preparation of a semi-finished product, purification andpost-treatment. The invention also discloses the sugarcane dietary fibers prepared by the preparation method of the sugarcane dietary fibers. According to the method provided by the invention, duringpretreatment, a mode with combination of high-temperature cooking treatment, steam explosion treatment and ultrasonic treatment on raw materials is adopted, structural organizations of the raw materials can be effectively destroyed, and inclusions of the raw materials are fully exposed; by combining with impurity removal treatment, non-dietary fiber components in the raw materials are further lowered, and the raw materials after pretreatment are beneficial to strengthening the enzymolysis effect of cellulase or a compound enzyme of the cellulase and hemicellulase and also enables enzymolysisto be more full, so that the purity of a finished product is improved, and the palatability of the finished product can be effectively improved; and the finished product is purified after enzymolysis,the purity is further improved, and the finished product has the advantage of high purity. The sugarcane dietary fibers provided by the invention also have the advantages of small fiber particle sizes, strong water-holding capacity and strong swelling capacity.
Owner:中康长和健康科技(北京)有限公司

Method for producing ethanol by wood fiber raw material

The invention relates to a method for producing ethanol by the wood fiber raw material, and solves the problem of low total sugar yield in the prior art. The method for producing ethanol by the wood fiber raw material comprises the following steps of: 1) smashing the wood fiber raw material, effectively and continuously dipping in dilute acid at the temperature of 20-80DEG C, staying for 1-15 minutes, and dewatering; 2) processing the dewatered material under the condition that the temperature is 80-200DEG C and the pressure is 0.4-10MPa for 1-35 minutes; 3) adding water into the material obtained in step 2), blending into required dry matter density, and hydrolyzing by the cellulose for 8-120 hours to obtain enzymatic hydrolysate under the condition that the temperature is 30-70DEG C and pH (potential of hydrogen) is 1-7; 4) carrying out zymophyte co-fermentation for 8-120h under the anaerobic condition that the temperature is 20-45DEG C and the pH is 3-8 to obtain fermentation mash containing ethanol; and 5) after the fermentation mash is subjected to concentration extraction, obtaining the ethanol of which the purity is 95%. According to the technical scheme, the problem is better solved, and the method for producing ethanol by the wood fiber raw material can be used for the industrial production for producing the ethanol by the wood fiber raw material.
Owner:CHINA PETROLEUM & CHEM CORP +1

Novel rhizoma polygonati wine and production process thereof

The invention relates to novel rhizoma polygonati wine and a production process thereof. The production process comprises the following steps: performing enzymolysis on traditional Chinese medicinal materials, performing diastatic fermentation, performing base liquor fermentation, adding edible alcohol for soaking, filtering, separating and the like. The wine provided by the invention takes the pure traditional Chinese medicinal materials with homology of medicine and food as raw materials and is safe and harmless to the human body; the wine meets the compatibility of the traditional Chinese medicinal materials, and has the effects of strengthening the spleen and stomach, reinforcing liver and kidney, nourishing yin and blood, regulating deficiency, calming the heart and tranquilizing themind and the like; by virtue of steps of filtration, beta-cyclodextrin debitterization and the like, bitterness is removed, and the taste is optimized. The innovation point is that by utilizing a manner of directly fermenting after performing enzymolysis on the traditional Chinese medicinal materials, the active ingredients in the medicinal materials are efficiently and fully released. Compared with the traditional health medicinal liquor, the novel rhizoma polygonati wine disclosed by the invention has the advantages that the production cycle is greatly shortened, the ingredients of the traditional Chinese medicinal materials are fully utilized, and the losses of nutritional ingredients are greatly reduced.
Owner:ANHUI NORMAL UNIV

Device and method for extracting xylitol and chlorophyll dietary fiber from whole-plant corn straws

The invention relates to a device and method for extracting xylitol and chlorophyll dietary fiber from whole-plant corn straws. The device comprises a whole-plant corn straw pretreatment system, an enzyme preparation system, an enzymolysis system, a xylitol extraction system and a chlorophyll dietary fiber manufacturing system, wherein the enzymolysis system comprises a hydrolysis kettle and a squeezing-extracting hopper, a solid material inlet and a liquid material inlet are formed in the top of the hydrolysis kettle, the solid material inlet is connected with the whole-plant corn straw pretreatment system, the liquid material inlet is connected with the enzyme preparation system, an outlet is formed in the bottom of the hydrolysis kettle and is connected with the squeezing-extracting hopper, a solid material outlet of the squeezing-extracting hopper is connected with the chlorophyll dietary fiber manufacturing system by virtue of a conveyer, and pipelines for collecting percolate are arranged at outlets of the squeezing-extracting hopper and the hydrolysis kettle and are connected with the xylitol extraction system. The device is reasonable in structure, effective enzymolysis of the whole-plant corn straws can be realized, and the product yield is improved.
Owner:张喜强

A kind of cultivation method of crayfish

The invention provides a crayfish culture method, which belongs to the field of aquaculture, including pretreatment of culture ponds, cultivation of hydroponic algae, seedling feeding and management, feed feeding, and water body purification, wherein the purifying agent used for water body purification includes EM biological bacteria agent and Composite flocculant, the above-mentioned composite flocculant is a polymer formed by β-cyclodextrin as a matrix, and a cross-linking agent is catalyzed to undergo esterification and cross-linking reaction, and the cross-linking agent used includes citric acid, hydroxybenzoic acid and 2- Hydroxypropionic acid. The method for cultivating crayfish provided by the invention has a benign breeding ecological environment, low cultivation cost, good water quality purification, high survival rate and output of crayfish; the feed used in the method is excellent in edibility and palatability, and the production rate and product purity are excellent. High; the specific surface area of ​​the composite flocculant used is relatively large, the cavity structure capacity and adsorption capacity are high, the expansion coefficient is low, the water area is wide, the water purification effect is excellent, the breeding environment is improved, and the survival rate is conducive to improving the economic benefits of breeding.
Owner:ZHEJIANG OCEAN UNIV

Traditional Chinese medicine composition for preventing and treating chicken colibacillosis and preparation method thereof

The present invention belongs to the technical field of veterinary herbal medicines, and discloses a traditional Chinese medicine composition for preventing and treating chicken colibacillosis and a preparation method thereof. The traditional Chinese medicine composition is prepared from the following raw materials in parts by weight: 50-70 parts of herba rhodiolae, 40-60 parts of fructus ligustrilucidi, 20-40 parts of herba centellae, 20-30 parts of herba andrographitis, 20-40 parts of radix berberidis, 20-40 parts of mahonia bealei, 20-40 parts of herba euphorbiae humifusae, 20-30 parts ofcacumen biotae, 20-30 parts of fructus citrus sarcodactylis and 5-15 parts of radix glycyrrhizae. According to parts by weight with the unit of g and parts by volume with the unit of mL, all the raw materials are mixed and ground in proportion, then extraction, impurity removal and concentration are performed, the volume is made up to 1,000 parts by volume, and an oral solution is prepared. The traditional Chinese medicine composition is a pure traditional Chinese medicine preparation, has safety, no toxic or side effects and no palatability problem, can increase the colibacillosis survival rate to 65% or above and can improve the weight gain.
Owner:HENAN SOAR VETERINARY PHARMA +1
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