48results about How to "Increase sugar concentration" patented technology

A method for preserving a polypeptide comprises (i) providing an aqueous solution of one or more sugars, a polyethyleneimine and said polypeptide wherein the concentration of polyethyleneimine is 25 μM or less based on the number-average molar mass (Mn) of the polyethyleneimine and the sugar concentration or, if more than one sugar is present, total sugar concentration is greater than 0.1 M; and (ii) drying the solution to form an amorphous solid matrix comprising said polypeptide.

The invention discloses a method for preprocessing lignocellulose, which comprises: installing the lignocellulose into a recycle reactor, injecting diluted acid, opening a circulating pump to carry out cyclic reaction under the temperature of 50DEG C-200DEG C, acid-removing and filtering hydrolyzate which is obtained after finishing the reaction, and using the hydrolyzate to ferment. The invention also discloses a system which is applied in the method. The method of the invention can effectively increase the conversion rate of hemicellulose and the conversion rate of cellulase hydrolysis in the lignocellulose, fermentation inhibiting products are reduced, simultaneously, the time for preprocessing also can be shortened, and the energy consumption is lowered.

The invention provides a method of preparing lactic acid and lactate ester by catalyzing sugar to convert. The method is characterized in that water, micromolecular alcohol or an aqueous solution of the alcohol is taken as a solvent, a Sn containing compound is taken as a catalyst, and glucose, cane sugar, fructose, xylose, dioxyacetone and glyceraldehyde can be catalyzed to convert in a reaction vessel so as to obtain the lactic acid and lactate ester at high yield. The method has the advantages that the catalyst is low in cost and easy to obtain, reactants have high sugar concentration, reaction time is short, reaction temperature is low, the yield of lactic acid and lactate ester is high, needed equipment is simple, and the method is simple and convenient in operation and environmental-friendly.

The present invention relates to a process for integrated production of ethanol and seaweed biofertilizer from fresh red seaweed, Kappaphycus alvarezii. Specifically, the present invention describes a process for the production of ethanol, as a byproduct, from Kappaphycus alvarezii. The process includes crushing the fresh weeds to release the sap, a proved biofertilizer, and recovering the residual carrageenan rich biomass, hydrolysing the biomass using dilute acid at elevated temperature, neutralizing the hydrolysate by using inexpensive calcium hydroxide and removing the insoluble salts through filtration or centrifugation, desalting soluble salts from the hydrolysate by electrodialysis, enriching with nitrogen source, inoculating with yeast and fermenting it to form a fermented broth containing ethanol and separating ethanol from the fermented broth by distillation and using residual hydrolysate, generated CaSO₄ and reject obtained from electrodialysis as manure.

The invention discloses a method for extracting sugar from wood fiber substances. The method includes that first, smashed fiber raw materials are mixed with a stannic chloride solution to obtain raw material size, then steaming and blasting are conducted for 2-5 min under the condition of 0.6-0.8 MPa and at the temperature of 160-190 DEG C, after reaction solid-liquid mixture is not separated and directly used as raw materials for enzymatic hydrolysis, and hydrolysate containing sugar is obtained after enzymatic hydrolysis. The method is short in operation procedure, low in energy consumption, high in raw material use rate and good in saccharification effect.

The present invention relates to a modified yeast strain of Saccharomyces cerevisiae having MCC accession number 0069 with osmo-tolerant, thermo-tolerant, ethanol tolerant and self-flocculation properties. Further, the present invention relates to a method for obtaining modified yeast strain. The present invention also relates to a method of production of ethanol at high temperature using said yeast strain. The ethanol produced by the method disclosed in the present invention is used as fuel.

The invention belongs to the technical field of construction mortar production, and especially relates to an application of fly ash in construction mortar. Calculated according to kg/m<3> parts, the mortar comprises raw materials of, by weight, 200-400 parts of cement, 20-50 parts of thickening powder, 100-130 parts of fly ash, 1200-1500 parts of sand, 2-8 parts of a retarder, and 250-280 parts of water. The preparation method of the retarder comprises the steps that: (1) straw powder and acid are added into a hydrolysis pot, such that first-stage first hydrolysis is carried out; and the hydrolysate is neutralized by using an alkali solution; (2) reduced-pressure concentration is carried out; (3) first-stage oxidization is carried out by adding an oxidant; and (4) oxidized mother liquor is concentrated. The application provided by the invention has the advantages of low cost, low production energy consumption, stable long-term strength development, high bonding strength, excellent water resistance and impermeability, and substantial environmental performance.

The invention relates to a sterilization composition containing Isoflucypram and a methoxy acrylate bactericide, and a preparation and an application thereof. The methoxy acrylate bactericide is any one of pyraclostrobin, picoxystrobin, kresoxim-methyl and coumoxystrobin, wherein a mass ratio of the effective component Isoflucypram to the methoxy acrylate bactericide is (1-15):(15-1), and the total content of the Isoflucypram and the methoxy acrylate bactericide in the sterilization composition/preparation is from 1-80 mass%. The sterilization composition/preparation has a significant synergistic effect on the control of grape powdery mildew. The sterilization composition and the preparation are suitable for preventing and controlling powdery mildew, rust, glume blight, net blotch, downy mildew, rice blast and other diseases. The composition has the advantages of obvious synergistic effects of the active components, delaying of the pesticide resistance of pathogens, reduction of the pollution to the environment, and excellent practical values when applied to prevent and control crop diseases.

The invention belongs to the field of biomass catalytic conversion, and particularly relates to an efficient method for preparing and separating 5-hydroxymethylfurfural from glucose. Aiming at the problems of large reaction solvent consumption, low initial sugar concentration, dieconomy and the like in the prior art, choline chloride and glucose are adopted to form a mixed liquid at a lower temperature to prepare the 5-hydroxymethylfurfural, and an inorganic salt Lewis acid is used as a catalyst, so that the method is environment-friendly, low in price, mild in reaction condition and suitablefor industrial production. Good selectivity is realized on the 5-hydroxymethylfurfural. Glucose can be continuously supplemented in the reaction process to serve as a reactant and also serve as a reaction solvent, and continuous production of 5-hydroxymethylfurfural is achieved.

The invention relates to a method for improving the glucose acid conversion rate of glutamic acid fermentation through adding trehalase. The trehalase is added in a later period in the glutamic acid fermentation process, wherein the adding time is 20-32h during a fermentation period, the temperature is required to be 30-40 DEG C during addition and the adding ratio is 0.1-100ppm. The fermentation operation condition before enzyme connection is invariable. According to the method, the glucose acid conversion rate of glutamic acid fermentation can be improved, the acid yield can be improved, and meanwhile, the consumption of sugar can be reduced. Due to the method, the utilization rate of the fed sugar in the later fermentation period is improved, the consumption of the fed sugar is reduced, meanwhile, the sugar concentration in a fermentation liquid is reduced, electro-crystallization such as post-extraction of glutamic acid is facilitated, and thus, the method plays a great role in improvement of the quality of a glutamic acid product.

The invention relates to an insecticidal composition containing Oxazosulfuryl and RH-5849, specifically to an insecticidal composition containing 2-[3-(ethylsulfonyl)-2-pyridyl]-5-[(trifluoromethyl)sulfonyl]benzoxazole (Oxazosulfuryl) and RH-5849, a preparation and application of the insecticidal composition, wherein the mass ratio of effective components Oxazosulfuryl to RH-5849 is (1-10):(10-1),and the total mass content of the Oxazosulfuryl and RH-5849 in the insecticidal composition/preparation is 1-95% by mass. According to the insecticidal composition/preparation containing Oxazosulfuryl and RH-5849, the insecticidal spectrum is greatly broadened, and the insecticidal composition/preparation has a remarkable synergistic effect on prevention and treatment of cnaphalocrocis medinalisguenee and is suitable for prevention and treatment of pests and mites of rice, melons, fruits and vegetables.

The invention provides a method for producing rice vinegar by fermenting brewer grains. The method comprises the following specific steps: crushing broken rice and adding 150 percent of fresh brewer grains; steaming the mixture at the temperature of 100 DEG C for 40 minutes; braising the material for 60 minutes, filtering, and cooling the material to 40 DEG C; feeding 5 percent of liquor bran yeast and 0.5 percent of alcohol active yeast and uniformly stirring; fermenting the mixture at the temperature of 28-32 DEG C for 2 days; turning the material for three times each day; performing sealing fermentation at the temperature of 32-35 DEG C for 3 days; adding 8 percent of a leavening agent for vinegar; performing sealing fermentation at the 32-35 DEG C for 5 days; performing sealing fermentation for 4 days wherein the temperature is raised to 36 DEG C,; adding 200 percent of water, soaking for 6 hours, spraying vinegar, filtering, sterilizing at the temperature of 85 DEG C for 30 minutes, blending and ageing to obtain the rice vinegar.

A method for processing a stream of cellulosic fines containing inorganic particles, to increase a hydrolysis yield of polysaccharide degradation enzymes, such fines in a waste stream from a recycled packaging paper mill to produce a stream of fermentable sugars, comprising treating the fines with a surfactant which selectively binds to the inorganic particles and which reduces binding to the inorganic particles by the polysaccharide degradation enzymes, and degrading polysaccharides in the waste stream with the polysaccharide degradation enzymes.

The invention relates to a fungicidal composition containing flubeneteram and cyproconazole, a preparation and applications of the fungicidalcomposition and the preparation. The mass ratio of effective components including the flubeneteram and the cyproconazole is 1-10:10-1, and the total content of the flubeneteram and the cyproconazole in the fungicidal composition/the preparation is 10-60% by mass. The fungicidal composition/the preparation has the obvious synergistic effect on prevention and control of soybean rust. The fungicidal composition and the preparation are suitable for preventionand control of wheat powdery mildew, wheat sharp eyespot, the soybean rust, soybean frogeye leaf spot, soybean gray mold, soybean anthracnose or fruit and vegetable leaf spot.

The invention provides sucrose-free preserves and a production method thereof. The production method includes the following steps: placing fruits and vegetables in a fruit and vegetable cleaning machine to be cleaned, and removing visible foreign matter and rotten fruits and vegetables; dissolving compound sugar powder and sodium pyrosulfite in water to prepare a sugar solution, adding the pretreated fruits and vegetables into the sugar solution for soaking, adding the compound sugar powder every day until the sugar degree of the sugar solution is 40%-60%, and sugaring for 2-4 days; and putting the sugared fruits and vegetables into a drying oven for drying, and packaging the finished preserved fruits, wherein the compound sugar powder comprises the following raw materials in parts by weight: 40%-60% of trehalose and the balance being maltose and maltose oligosaccharide. According to the production method of the sucrose-free preserves, the composite sugar powder mainly containing trehalose is used for sugaring, and the obtained sucrose-free preserves are low in sweetness which is about 45% of the sweetness of sucrose, bright in color, low in hygroscopicity, high in water retentioncapacity, not prone to sand returning and soup flowing, closer to fresh fruits in taste, slow in digestion and absorption of trehalose in human bodies, free of decayed teeth and small in blood sugar,and cannot cause obesity.