20 results about "Lactic acid" patented technology

The composition of nano-grade lanthanum titanium compound oxide is La2-4Ti2-9O7-24, in which La:Ti:O (atom ratio)=2-4:2-9:7-24, LawTi2O7 and La4Ti9O24 are existed in micro-crystal state, its average grain size is 28nm-35nm, and its specific surface area is greater than 60 sq.m/g. Said compound oxide can be used as catalyst for preparing lactide by utilizing lactic acid dehydration and polycondensation, can improve viscosity of reaction system and can effectively reduce lactic acid oligomer cracking temp., and the yield of lactide is 80%-90%.

The invention provides soil ecological system restoring organic fertilizer which is high in content of nutrients available for crops and reasonable in nutrition collocation, is thoroughly decomposed, has a small number of foreign microbes and is high in organic matter content. The soil ecological system restoring organic fertilizer comprises organic raw materials, microbial agents and NPK, wherein the organic raw materials comprise cake fertilizer, green manure, plant protein and biochemical humic acid; the microbial agents comprise nine microbial bacteria such as nitrogen-fixing bacteria, phosphorus-solubilizing bacteria, potassium-releasing bacteria, actinomycetes, saccharomycetes, lactic acid bacteria, photosynthetic bacteria, paenibacillus polymyxa and bacillus subtilis; the NPK accounts for 5-25% of the total fertilizer; the NPK comprises ammonium sulfate, ammonium chloride, ammonium nitrate phosphate, ammonium phosphate, potassium sulfate, potassium chloride, potassium nitrate, magnesium sulfate, zinc sulfate and borax; the organic raw materials are taken as the balance of the fertilizer.

The invention provides a three-dimensional wrinkle polylactic acid microballoon and a preparation method and uses thereof. The preparation method of the three-dimensional wrinkle polylactic acid microballoons is as follows: adopting ammonium bicarbonate deionized water solution of Fe3O4@ SiO2 nanoparticles as an inner phase, dichloromethane solution of polylactic acid as an interphase, deionized water solution of polyvinyl alcohol as an outer phase, and obtaining the three-dimensional wrinkle polylactic acid microballoons. The gas produced by the ammonium bicarbonate introduces mismatched stresses at emulsion interface, the nanoparticles added in the emulsion introduce multiple-gasification cores, and the three-dimensional wrinkle polylactic acid microballoons are successfully prepared and used in oil water separation and cell adsorption. The three-dimensional wrinkle polylactic acid microballoons are in multi-stage porous structure which can effectively increase specific surface area and can be used effectively in oil-water separation, and has good bio-compatibility which can be used in effective cell adhesion. The three-dimensional wrinkle polylactic acid microballoons have an excellent prospect in bio-application.

The invention relates to a coal mine omnipotent gas extraction agent, in order to solve the problem of poor gas extraction effect in existing coal mines. The extraction agent comprises the following raw materials according to weight ratio: 100 of water-soluble organic acid and 3-28 of sugar. The weight ratio of raw materials is 100 of water-soluble organic acid and 3-28 of sugar, and the extraction agent further comprises water of which the weight is 5-18 times as that of the above raw materials. The water-soluble organic acid is selected from fulvic acid, acetic acid, complex acid obtained from plant fermentation, citric acid and lactic acid; the sugar is selected from maltose, sucrose, fructose, konjac powder and agar. The extraction agent has the advantages of low cost, easy operation and use, no influence on coal quality, good effect, ability of improving the gas extraction effect of coal mines dramatically, no obvious influence on underground operation staff and equipment, high security and high efficiency.

Genetically modified lactic acid bacteria having a reduced or lacking or enhanced diacetyl reductase activity, acetoin reductase activity and/or butanediol dehydrogenase activity are provided. Such bacteria are used in starter cultures in the production of food products including dairy products where it is desired to have a high content of diacetyl and for reducing or completely removing diacetyl in beverages including beers, fruit juices and certain types of wine, where the presence of diacetyl is undesired.

The invention discloses essence of pickled Chinese cabbage and a preparation method and an application thereof. The method comprises the following steps: first, adding 60wt% of edible vegetable oil or glycerol triacetate as a solvent, heating to 60 DEG C, adding 4-hydroxyl-2, 5-dimethyl-3(2H) furanone, acetyl pyrazine, stirring till the components are completely dissolved, and cooling to below 30 DEG C; then, sequentially adding ethyl acetate, ethyl hexanoate, ethyl lactate, butyl caproate, 2-methyl butyric acid hexylester, phenethyl acetate, trans-2-heptenal, phenethyl alcohol, p-ethyl phenol, dimethyl disulfide, acetic acid, propionic acid, butyric acid, 2-methyl butyric acid, garlic oil or galic essential oil, fennel oil or fennel oil resin, ginger oil or ginger essential oil or distilled ginger oil and a pepper extract or pepper essential oil or pepper oil resin; and adding 40wt% of residual edible vegetable oil or glycerol triacetate, uniformly stirring and filling to obtain the essence. The essence of of pickled Chinese cabbage produced by the invention is vivid in frangrance compared with that of common fermented flavor essence, stable in quality, good in temperature resistance and unique in flavor.

The invention provides a high-adsorption polylactic acid composite biofilm carrier material, which is prepared from the following raw materials by weight: 8-10 parts of diatomaceous earth, 14-18 partsof polylactic acid, 0.3-0.4 part of graphene oxide, 4-6 parts of cassava starch, 2-3 parts of gum arabic, 40-50 parts of polypropylene, 8-12 parts of chitosan, 2-4 parts of nanometer carbon sol, 3-5parts of lignocellulose, 1-2 parts of bentonite, 1-2 parts of hexadecyl trimethyl ammonium bromide, 0.5-1.5 parts of silica sol, 0.3-0.5 part of sodium humate, and 15-20 parts of water. The inventionfurther provides a preparation method of the high-adsorption polylactic acid composite biofilm carrier material. According to the present invention, the high-adsorption polylactic acid composite biofilm carrier material has advantages of light weight, large surface activation area, rich carbon source and low influence of environmental temperature change on adsorption performance; and the filler prepared from the high-adsorption polylactic acid composite biofilm carrier material has advantages of good fluidity, less agglomeration, good adsorption performance, corrosion resistance, duration, high efficiency and the like so as to further improve the water purification effect.

The invention discloses a preparation method of a biodegradable and sterilized cushioning packaging material, which belongs to the field of cushioning packaging materials. In the present invention, polysaccharidase is added to the loofah scoop to make a buffer packaging material base material, which is mixed with lactic acid, starch, water, and sodium ethylate for reaction, and saponin and onion juice are added to the mixture to obtain a biodegradable and sterilized buffer packaging material. The invention utilizes the internal plant fiber structure in the loofah scoop to make the cushioning material, which is not only light in weight, easy to process, biodegradable, and good in cushioning performance, but also rich in raw materials, low in cost, and environmentally friendly. Adding antibacterial additives can make the cushioning packaging material Good antibacterial performance, reducing the viability of germs or molds in the plant fiber environment.

The invention provides a high-calcium soda biscuit and a manufacturing method thereof. The high-calcium soda biscuit is mainly manufactured by basic materials and active calcium powder accounting for 0.3-0.6% of the weight of the basic materials, wherein the basic materials comprise flour, salt, yeast, baking soda, edible oil and saccharose. The manufacturing method includes the steps of modulation and fermentation of seeded dough, preparation of high-calcium additives, modulation and fermentation of main dough, rolling, molding, baking and cooling. After active calcium is preprocessed through lactic acid and the saccharose, the active calcium can be sufficiently converted and is convenient for human bodies to absorb, the calcium supplement effect is greatly improved, the manufactured high-calcium soda biscuit is uniform and consistent in color, honeycomb holes are formed in the internal structure, mouthfeel is soft, crisp, tasty and refreshing, scent is pure, and the high-calcium soda biscuit is suitable for being eaten by pregnant women, children and old people.

The invention discloses a bioactive glass composite film as well as a preparation method and application thereof. The composite film is a thin flaky degradable composite material, and is prepared frombioactive glass powder by using hyaluronic acid and polymer lactic acid-polyglycolic acid as carriers through film forming. The preparation method concretely comprises the following steps of (1) polylactic acid-hydroxyacetic acid end position activation; (2) hyaluronic acid tail end amination synthesis; (3) hyaluronic acid-polylactic acid-hydroxyacetic acid copolymer carrier synthesis; (4) hyaluronic acid-polylactic acid-hydroxyacetic acid copolymer gel dispersion preparation; (5) hyaluronic acid-polylactic acid polymer-bioactive glass composite film preparation. The composite film slowly releases bioactive glass nanometer particles; good biocompatibility is achieved; the long-effect anti-inflammatory effects can be achieved; drug resistance cannot be generated; the periodontium growth ispromoted; the dentinal tubule is sealed; the goal of reducing dentine hypersensitivity after the periodontal surgery can be achieved.

The invention belongs to the field of food, and relates to the field of leisure food, in particular to ghostplant wormwood herb leisure food and a preparing method thereof. The ghostplant wormwood herb leisure food comprises, by weight, 1-5 parts of table salt, 1-5 parts of aginomoto, 0.1-0.5 part of disodium 5'-ribonucleotide, 1-5 parts of rock candy, 0.1-5 parts of citric acid, 0.1-4 parts of lactic acid, 0.1-5 parts of yeast extract, 0.01-0.1 part of acesulfame, 1-5 parts of chili powder, 10-50 parts of red oil, 1-5 parts of sesame, 1-5 parts of sweet soybean paste and 1-5 parts of beef flavor for per 100 parts of ghostplant wormwood herbs which are dehydrated through deep-frying. The ghostplant wormwood herb leisure food is processed through a special technology with ghostplant wormwood herbs as a raw material, integrates fragrance, pungency, sweet taste and umami, has a crisp and excellent mouthfeel and a flavor like spicy roast beef shreds, and can serve as leisure food or food going with rice or bread.

The invention discloses an environmentally-friendly freshness-keeping agent for meat products and an application of the environmentally-friendly freshness-keeping agent for meat products in meat foodpreservation. The environmentally-friendly freshness-keeping agent for meat products comprises the following ingredients in parts by weight: 20-50 parts of agaricus bisporus polysaccharides, 40-80 parts of sodium alginate, 0.02-0.2 part of calcium propionate, 0.005-0.05 part of lactic acid, 1-5 parts of glycerine, and 300-900 parts of water. The environmentally-friendly freshness-keeping agent formeat products disclosed by the invention is scientific and reasonable in formula, good in freshness-keeping effects and capable of effectively inhibiting reproduction of microorganisms in meat so asto prevent and treat microbial contamination on meat; and thus, the environmentally-friendly freshness-keeping agent for meat products is capable of effectively prolonging shelf lives of meat products, improving quality of meat products and effectively reducing fresh meat storage costs.

The invention discloses a mushroom tremella granule which is prepared from the following raw materials in parts by weight: 20-30 parts of mushroom, 20-30 parts of tremella, 30-42 parts of mango, 6-8 parts of laver, 4-6 parts of hawthorn, 3-4 parts of peanut, 2-4 parts of lotus seed, 2-3 parts of orange peel, 1-2 parts of sunflower disc, 1-2 parts of jerusalem artichoke, 1-2 parts of pineapple leaves, 1-2 parts of grape leaves, 2-3 parts of boxthorn leaves, 1-2 parts of radix glycyrrhizae preparata and 0.1-0.2 parts of citric acid. The mushroom tremella granule prepared from the raw materials contains various health care formulas, and the mouth feel of traditional raw materials is richened by adding lactic acid bacteria and milk into the raw materials and carrying out a thermal reaction; and the mango in the raw materials has the effects of reinforcing stomach, allaying thirst and facilitating urine. The mushroom tremella granule has the effects of enhancing the immunity, preventing colds, enhancing the appetite and the like.

The invention provides a small cake containing tomatoes and frozen bean curds. The small cake is prepared from weak strength flour of wheat, tremella powder, walnut oil, tomatoes, frozen bean curds, eggs, salt, stevioside, fish gelatin, star anise, fennel seeds, cinnamon, black pepper, nutmeg, twolobed officinal magnolia bark, cumin, rhizoma kaempferiae, black cardamon, hot pepper, galangal, rhizoma atractylodis macrocephalae, lactic acid bacteria, yeast and lysozyme. The small cake containing tomatoes and frozen bean curds is low-fat and low-sugar, is suitable for scale production, and has the advantages of having intense fragrance, being slightly sour, tasty and refreshing, having a moderate salinity, being golden yellow in color, being mellow and delicious, being nutritionally balanced and being easy to digest; tomatoes, frozen bean curds, spices and vegetable oil are mixed, so that the nutrients are well-balanced; after being baked at high temperature for a short time, the small cake has intense, harmonious and lasting fragrance, is crispy outside and tender inside, and is high in nutrient content; the surface of the small cake is provided with lysozyme as a protective agent, so that the effects of bacterium resistance and disinfection are achieved and the shelf life is prolonged; the small cake contains no cane sugar and additives and contains walnut oil, and thus is nutritional, safe and healthful and can be eaten by any population in quantity.

The invention relates to a method for preparing a CPVC resin filling agent by adopting ardealite, and in particular to a method for preparing the CPVC resin filling agent from ardealite serving as a raw material. The method for preparing the CPVC resin filling agent by adopting the ardealite comprises the following steps: reacting the ardealite subjected to impurity removal with sodium carbonate, and obtaining calcium carbonate; performing anaerobic fermentation on the obtained calcium carbonate, potato pulp, alpha-amylase and soybean dregs under the action of lactic acid bacteria to obtain lactic acid; performing an esterization reaction on the obtained lactic acid and stearic acid under the action of protection gas, performing a neutralization reaction on stearic acid lactyl acid obtained by the esterization reaction and a sodium carbonate and calcium carbonate mixture, and preparing sodium stearyl lactate and calcium stearyl lactate; preparing CPVC resin from a mixture of the sodium stearyl lactate and the calcium stearyl lactate, which serves as a filling agent.