36 results about "LACTIC ACID LIQUID" patented technology

The invention discloses red jujube and goat milk beer. The red jujube and goat milk beer is prepared from a red jujube and goat milk lactic acid liquid and originally brewed beer according to the volume ratio of (1:0.5) to (1:2), wherein the red jujube and goat milk lactic acid liquid is prepared from the following raw materials in parts by weight: 100 parts of goat milk, 10-15 parts of red jujube juice, 0.3-0.5 part of compound lactobacilli, 4-8 parts of a sweetening agent, and 0.35-0.5 part of a stabilizer; and the originally brewed beer is prepared from the following raw materials in parts by weight: 150 parts of malt juice, 0.075-0.15 part of hops and 0.3-0.75 part of beer yeast. The invention also discloses a preparation process of the red jujube and goat milk beer. With goat milk, malt and red jujubes as raw materials, lactic acid fermentation and alcoholic fermentation are respectively carried out, and then after-ripening fermentation on the lactic acid is carried out in a mixing manner. The red jujube and goat milk beer disclosed by the invention is good in stability, pure in color and good in taste, has the flavors of yoghourt and beer, has the fragrance of the red jujube and the irritate taste of carbon dioxide, caters to the tastes of consumers, is healthy, nutrient, green and health novel beverage, and has a wide market prospect.

The invention relates to a plasma-activated lactic acid solution with high-efficiency antibacterial performance, a preparation method and application thereof, and belongs to the field of materials. In this method, the plasma jet is used as the generating device, and air is used as the working gas. After the air enters the generating device, it passes through the high-voltage electrode for treatment. After the treatment, the plasma flows out from the nozzle of the spray gun and enters the low-concentration lactic acid solution to complete the preparation of the activated lactic acid solution. The activated lactic acid solution prepared by the method has high-efficiency bactericidal performance, short preparation time, high efficiency, stable bactericidal performance, low energy consumption and no pollution, and is especially suitable for cleaning and disinfecting products in the slaughtering process of livestock and poultry and cleaning and sterilizing fruits and vegetables.

The invention relates to a method for detecting the content of lactic acid in a feed acidifier. The detecting method comprises the steps of preparing a sample to be detected, adding the sample to be detected to strong base to depolymerize lactic anhydride and conducting dilution and filtration in sequence, conducting sample detection, and conducting result analysis. The method is used for liquid chromatogram quantitative analysis of the content of lactic acid in a mixed type feed additive, especially an acidifier, with silicon dioxide and / or mountain flour as a carrier; dissociation of polylactic acid is conducted firstly with strong base, then pH is regulated to guarantee sufficient protonation under the acidic condition, volume setting is conducted, filtration is conducted with an organic filter membrane, and finally filtrate is injected into the sample for detection. According to the method, the chemical properties of lactic acid are utilized, special pretreatment is conducted, the accuracy and precision of a detection result are improved greatly, operation is easy, the reagent adopted is safe and free of toxicity, the safety of detection staff is high, results are accurate and stable, and adopted equipment are common and easy to obtain. The method is an ideal lactic acid liquid chromatogram detection method and is suitable for large-scale application and popularization.

The invention relates to a novel decoloration process for D-lactic acid. The novel decoloration process is characterized by comprising the following steps: after the fermental cultivation of D-lactic acid is finished, heating, introducing air for afterripening, after the afterripening is finished, regulating the pH of D-lactic acid fermenting liquid by virtue of a calcium hydroxide solution, rapidly heating at a certain pressure, maintaining for a period of time, filtering, carrying out acidolysis by virtue of sulfuric acid, after colored matters are separated from acidolysis liquid at the high temperature and a certain pressure, carrying out activated carbon decoloration once, carrying out cation exchange and anion exchange to obtain lactic acid liquid, and finally concentrating the lactic acid liquid, so as to obtain the finished product. By virtue of the novel decoloration process, once decoloration is realized, the decoloration process is greatly simplified, the cost is saved, and meanwhile, the yield and the chromaticity of lactic acid are improved.

The invention provides a method for producing lactic acid by joint fermentation of kitchen waste and waste oil biodiesel by-product crude glycerol. The method comprises the following steps: adding mixed hydrolase to the food waste culture medium for hydrolysis, inoculating the seed liquid into the hydrolyzed food waste culture medium, and adding the crude glycerol of waste oil and biodiesel which has been preliminarily treated by biomass, Anaerobic or micro-aerobic fermentation, at the same time, the crude glycerol of waste oil and biodiesel that has been preliminarily treated by biomass is fed in, and the concentration of crude glycerol in the fermentation system is controlled to be 10-80g / L, pH is 5.0-8.0, and glycerol and lactic acid are measured during the fermentation process. The content of the fermented liquid obtained after fermentation was filtered to obtain the lactic acid liquid. The invention obtains a new way of lactic acid fermentation with lower cost and wider source of raw materials, and has good economic and environmental benefits, which broadens the selection range of raw materials for lactic acid fermentation, and is wastes such as kitchen waste and waste glycerin. resource utilization provides a new way.