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1528 results about "Sorbic acid" patented technology

Sorbic acid, or 2,4-hexadienoic acid, is a natural organic compound used as a food preservative. It has the chemical formula CH₃(CH)₄CO₂H. It is a colourless solid that is slightly soluble in water and sublimes readily. It was first isolated from the unripe berries of the Sorbus aucuparia (rowan tree), hence its name.

Green tea-sorghum crispy rice

The invention relates to the technical field of foods, in particular to a green tea-sorghum crispy rice which is prepared by the following raw materials in percentage by weight: 30 to 50 percent of sorghum, 20 to 40 percent of wheat, 3 to 5 percent of green tea leaves, 1 to 5 percent of green tea powder, 1 to 5 percent of dairy salt, 1 to 5 percent of chicken powder, 0.05 to 0.1 percent of sorbic acid, and 5 to 10 percent of water; the green tea-sorghum crispy rice is prepared by the following steps: (1), soaking for 15 to 30 minutes after green tea leaves are added into water and boiled, cooling, and filtering for removing the leaves and keeping a stock solution; (2), grinding the 30 to 50 percent of sorghum and 20 to 30 percent of wheat into powder, then blending by using the stock solution obtained in the step (1), adding the dairy salt, the chicken powder and the sorbic acid during the blending process, and finally preparing for obtaining a dough; (3), pressing into thin sheets by using a die, spreading the green tea powder onto the thin sheets, finally baking inside a baking oven at the temperature ranging from 210 GEG C to 230 DEG C for 5 to 10 minutes, and adopting a vacuum plastic bag for packaging. The green tea-sorghum crispy rice produced by the method in the invention, has a strong tea perfume, is unique in taste and is full-flavoured.
Owner:SICHUAN LANYI TECH

Methods of preparation and using antimicrobial products

Novel antimicrobial products and methods of making and using the same are shown, whereby the products can be used in the same or greater percentages as conventional microbial growth inhibitors without imparting an off-flavor, taste, color or odor to the products in which they are used. The antimicrobial products are formed by reacting azodicarbonamide or an ammonia gas with a compound selected from the group consisting of benzoic acid, sodium benzoate, calcium benzoate, potassium benzoate, acetic acid, sodium diacetate, paraben, niacin, calcium acetate, calcium diacetate, citric acid, lactic acid, fumaric acid, sorbic acid, sodium sorbate, calcium sorbate, potassium sorbate, propionic acid, sodium propionate, calcium propionate, potassium propionate and mixtures thereof. In one embodiment, the product is prepared by placing a layer of azodicarbonamide on a substrate and covering the layer with a gas permeable separator. The antimicrobial compound is then added on top of the separator, and the combination is heated to form the final product. In another embodiment, the product is prepared by exposing the antimicrobial compound to an ammonia gas. The ammonia gas reacts with free acids in the antimicrobial compound to convert the free acids into ammonium salts, thereby eliminating off-flavor and off-odor of the resulting antimicrobial product. The antimicrobial products prepared according to the present invention are suitable for use in foodstuffs, sanitation products, cosmetics, pharmaceuticals, and so forth.
Owner:TILLIN

Modifier for black metal surface matrix and production method thereof

The invention discloses a modifier for a black metal surface matrix. The modifier comprises the following raw material components in part by weight: 7 to 9 parts of aminotriacetic acid, 7 to 9 parts of lauric acid, 5 to 7 parts of malic acid, 3 to 5 parts of sorbic acid, 0.3 to 0.5 part of diethylenetriamine and 78 to 90 parts of water. A production method for the modifier comprises the following steps of: putting the water into a reaction kettle, then putting the aminotriacetic acid into the reaction kettle, fully stirring the water and the aminotriacetic acid till full dissolution, putting the lauric acid, the malic acid, the sorbic acid and the like into the reaction kettle respectively, fully stirring the components uniformly and melting the mixture, raising the temperature to be between 60 and 70 DEG C, keeping the temperature constant, reacting and chelating the melt for 1 hour at the constant temperature with stirring, then standing and performing natural complex reaction for 1 hour, finishing chelating when the solution is converted into a clear substance, obtaining a modifier finished product, and discharging, packing and selling the product. The modifier can be used for a long term; and the production method does not need discharge, only needs to continuously add raw agents, does not produce acid mist, acid gas or sour, does not drain waste water, and has no environmental pollution. The modifier enhances black metal facilities and equipment, and high-temperature resistance and oxidation corrosion resistance of products reaches over 2 times; and the modifier enhances the friction impact resistance of the black metal by over 2 times, and has quite considerable economic benefit and wide application.
Owner:邵阳市创捷化工有限公司

Rice leaf roller artificial feedstuff and preparation method and artificial feeding method applied on rice leaf roller

The invention discloses a formulation of an artificial feed for cnaphalocrocis medinalis guenee, a method for preparing the same and a method for breeding the cnaphalocrocis medinalis guenee, which belongs to the technical field of insect feed and breeding. The formulation of the feed comprises the following components in portion by weight: 2 to 4 portions of casein, 0 to 4 portions of yeast powder, 1.5 to 3 portions of glucose, 0.5 to 2 portions of cane sugar, 2 to 5 portions of wheat-germ powder, 0.01 to 0.02 portion of vitamin B complex, 0.2 to 0.4 portion of vitamin C, 0.01 to 0.02 portion of vitamin E, 1 to 4 portions of agar, 0 to 2 portions of cellulose, 2 to 4 portions of rice leaf dry powder (which is prepared from rice leaves of tillering stage by drying and crushing at a temperature of 60 DEG C), 0.2 to 0.4 portion of 4M potassium hydroxide, 0.1 to 0.2 portion of sorbic acid, 0 to 0.2 portion of nipalgin, and 90 to 120 portions of water. The feed is prepared simply with low cost, and is favorable for the cnaphalocrocis medinalis guenee which has normal growth and development, thereby overcoming the difficulty that the cnaphalocrocis medinalis guenee cannot be bred for a successive generation artificially, achieving the artificial scale breeding of insects, and providing a material and a method for scientific experiments, chemical medicament screening and the production of a viral pesticide.
Owner:扬州绿源生物化工有限公司

Method for simultaneously determining sweetening agents and preservatives in tobacco essence

The invention discloses a method for simultaneously determining sweetening agents and preservatives in tobacco essence, and belongs to the technical field of chemical component detection of auxiliary materials for tobaccos. The method comprises the following steps that 1, a sample to be determined is diluted, the pH value of a solution is regulated to be 9-10, extraction is performed, extraction liquid is purified through an Oasis HLB column, and the purified extraction liquid is filtered for standby application; 2, filtrate is taken to be subjected to ion chromatographic analysis, and the content of the sweetening agents and the preservatives in the sample to be determined is calculated by contrasting a standard curve. According to the method, impurities disturbing determination in the essence are purified and removed in a classifying mode according to the physical and chemical properties of different types of the tobacco essence, one-time sample feeding is performed on the three sweetening agents (sodium cyclamate, acesulfame and saccharin sodium) and the two preservatives (sorbic acid and benzoic acid) through an AS17C analytical column and an electrical conductivity detector, and separation and determination are simultaneously performed. Compared with an industrially recommended determination method, the method has the advantages of being wide in linear range, low in quantitation limit, little in sampling quantity, high in determination efficiency and the like.
Owner:CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
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