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1142 results about "Reducing sugar" patented technology

A reducing sugar is any sugar that is capable of acting as a reducing agent because it has a free aldehyde group or a free ketone group. All monosaccharides are reducing sugars, along with some disaccharides, oligosaccharides, and polysaccharides. The monosaccharides can be divided into two groups: the aldoses, which have an aldehyde group, and the ketoses, which have a ketone group. Ketoses must first tautomerize to aldoses before they can act as reducing sugars. The common dietary monosaccharides galactose, glucose and fructose are all reducing sugars.

Method for preparing health-benefiting fermented soybean meal

The invention relates to a method for preparing health-benefiting fermented soybean meal enriched in small peptides, gamma-aminobutyric acid (GABA), reducing sugar, lactobacillus plantarum and antimicrobial peptide. By utilizing strains of aspergillus oryzae, saccharomyces cerevisiae, bacillus subtilis and lactobacillus plantarum, the small peptides, free amino acids, reducing sugar, GABA and high viable count content in the lactobacillus plantarum in the health-benefiting fermented soybean meal are obtained through the two-stage solid state fermentation method, the small peptides account for 8.01-18 percent, the free amino acids has the content of 80-300mg/g, the reducing sugar reaches 20-80mg/g, the GABA reaches 0.317-0.5mg/g, the viable count content in the lactobacillus plantarum is 2-6.5*1010cfu/g, the antibacterial titer of antimicrobial peptides is 2.0*103-7.0*104 IU/g, and the yield of the health-benefiting fermented soybean meal is 82.03-90 percent. According to the process, the nutrient effect of the soybean meal can be improved, the prepared fermented soybean meal has the antibacterial effect, partial antibiotics can be replaced, the fermented soybean meal is conveniently preserved and saved, the process is simple and feasible, and the fermented soybean meal is green and environment-friendly and has application significance and wide prospect in the feed industry and breeding industry.
Owner:ZHEJIANG UNIV OF TECH

Method for preparing natural dried fruit essence by utilizing dried fruit raw materials

ActiveCN102551009AEase and stabilizeEase priceEssential-oils/perfumesFood preparationMaillard reactionDesorption
The invention relates to a method for natural dried fruit essence by utilizing dried fruit raw materials, which comprises the following steps: taking peanut meal, cocoa powder, coffee powder and other dried fruit matters as raw materials; firstly extracting and concentrating flavor substances easier for volatilization in the raw materials by utilizing a natural extraction, resin adsorption and solvent desorption technology to obtain aqueous essence A; then drying and baking the raw materials remaining in the previous step, extracting with an organic solvent after fragrance is newly generated to obtain oily essence B; successively carrying out enzymatic hydrolysis on the remaining raw materials, centrifugally removing and precipitating, mixing with amino acid and reducing sugar for Maillard reaction to obtain pasty essence C; and finally spray-drying a precipitate after being subjected to enzymatic hydrolysis to obtain powdered flavor. Through all the steps, a series of dried fruit essence with different states which can be applied to different products can be obtained. The method has the advantages that the process is simple, the industrial production is convenient, the raw materials are fully utilized, the production cost can be reduced helpfully, and the fragrance is round, full, rich and natural.
Owner:SHANGHAI AIPU VEGETABLE TECH +1

Brewing technology for soybean sauce

The invention discloses a brewing technology for soybean sauce. The brewing technology comprises the following steps: (1) soybean soaking: adding soybeans into water for soaking; (2) stewing: stewing the soybeans to obtain cooked soybeans; (3) mixing: mixing flour and roasted wheat bran to obtain a flour mixture, and mixing the cooked soybeans and the flour mixture to obtain a mixture; (4) inoculation: cooling the temperature of the mixture to be below 30 DEG C, and inoculating aspergillus oryzae; (5) distiller's yeast making: conveying the mixture into a leavening room for cultivation, wherein in the earlier stage of cultivation, the distiller's yeast temperature is 28-35 DEG C, and in the later stage of cultivation, the distiller's yeast temperature is 20-25 DEG C until the distiller's yeast is formed; and (6) fermentation: mixing the finished distiller's yeast and salty water, performing fermentation under normal temperature for more than 4 months. According to the brewing technology, the contents of reducing sugar and amino acid nitrogen in the soybean sauce can be effectively increased, the non-enzymatic browning effect in a soybean sauce brewing process is enhanced, and the flavor and the color of the soybean sauce are enhanced; and furthermore, the distiller's yeast contains rich protease, and the utilization rate of proteins in the soybean sauce brewing process is increased.
Owner:GUANGDONG MEIWEIXIAN FLAVORING & FOOD

Preparation method of melon and fruit perfume for cigarettes

The invention discloses a preparation method of melon and fruit perfume for cigarettes. The preparation method comprises the following steps: (1) smashing melon and fruit raw materials, and carrying out solid-liquid separation so as to obtain fruit juice and solid fruit flesh; (2) carrying out reduced pressure concentration on the fruit juice to remove water so as to obtain fruit juice extract; (3) combining the fruit juice extract and the solid fruit flesh, and adding 3-6 times by weight of alcoholic solution with the concentration of 70%-80% for extraction so as to obtain a primary extract solution and residues, wherein the extraction temperature is 50-80 DEG C, and the extraction time is 1-4 hours; (4) adding 3-6 times by weight of alcoholic solution with the concentration of 40%-50% to the residues for extraction, and carrying out solid-liquid separation so as to obtain a secondary extract solution, wherein the extraction temperature is 50-80 DEG C, and the extraction time is 1-4 hours; (5) combining the extract solutions, and carrying out reduced pressure concentration to remove solvents so as to obtain the melon and fruit perfume for the cigarettes. The preparation method is simple, convenient and practicable; by adopting the preparation method, the extraction rates of reducing sugar, organic acid, flavone, polyphenol and glucoside in melons and fruits are increased, and meanwhile, the amount of amino acids, protein and macromolecular polysaccharides dissolved in the perfume is reduced.
Owner:CHINA TOBACCO ANHUI IND CO LTD

Method for high-efficiency hydrolyzing lignocellulose raw material in ionic liquid

The invention relates to a method for hydrolyzing lignocellulose materials, in particular to a method for efficiently hydrolyzing the lignocellulosic materials in ionic liquid; and the ionic liquid is taken as a solvent, greater than or equal to 1mol equivalent of water serves as a reactant, and an inorganic acid or an organic acid from catalytic amount to chemometry is taken as a catalyst, the lignocellulose materials such as crop straws, pine powder are reacted under ordinary pressure and at a temperature of not above 100 DEG C for 2 minutes to 34 hours; after the reaction is finished, a hydrolysate is obtained by quenching action with cold water and neutralization with alkali, generating immediately; and the quantitative chemical analysis is conducted to the total reducing sugar in the hydrolysate, indicating that the yield of the reducing sugar can reach 81 percent maximally and the hydrolysis efficiency can reach 58 percent. Compared with the traditional method of hydrolysis, the method has advantaged of non pretreatment process, low acid consumption, mild reaction condition, high hydrolytic activity, fast reaction speed, low corrosion resistance requirements for a reactor, high yield of reducing sugar, and easy tracking of extent of reaction. The method opens a new way for solving the problem of full utilization of lignocellulose existing for a long time.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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