Lactic acid use
Mainly used in the spices, food and beverage industries, as well as raw materials for the pharmaceutical, chemical, leather, printing and dyeing industries.
Antibacterial potentiating drug
Used as an experimental reagent, flavorant, preservative, plasticizer and binder, also used in the pharmaceutical industry
Lactic acid is an important sour agent with a specific astringent sour taste. It can be used in various foods and used in moderation according to production needs. It also has a strong bactericidal effect to prevent the growth of bacteria.
Lactic acid makes an important sour agent with a specific astringent sour taste. It can be used in various foods and used in moderation according to production needs. It also has a strong bactericidal effect to prevent the growth of bacteria.
Lactic acid is a widely used organic acid that can be used in brewing, medicine, leather, cigarettes, chemicals, food, printing and dyeing. The use of lactic acid in Japan is roughly 20% for brewing, 50% for food, 10% for lactic acid derivatives, and 20% for leather and other industries. The distribution of uses in China is also roughly the same. 1. Brewing industry The brewing industry uses about 80% lactic acid. The addition of lactic acid prevents the growth of bacteria, promotes the development of yeast, prevents the turbidity of the wine and enhances the flavor of the wine, as well as the yield of the wine. 2. Food Industry The food industry generally uses 50% lactic acid. Mainly used in lactic acid drinks, refreshing drinks, cakes, pickles and sour agents. Lactic acid can make foods slightly acidic without masking the natural flavor and aroma of fruits and steamed vegetables. Therefore, it is widely used in canned foods such as tomatoes, olives, pickles, and kale, and yogurt drinks made from lactic acid bacteria are also popular. 3. Pharmaceutical industry Lactic acid can be directly formulated into medicine or made into lactate. Oral administration can be used for intestinal disinfection. It also dissolves proteins and keratin and is particularly sensitive to the corrosive effects of diseased tissues, so it can be used to treat diseases such as throat tuberculosis, diphtheria and lupus. In addition, it is also used for the sterilization of sputum: gargle, coating agent, bladder injection, vaginal detergent. The combination of the hydrophilicity of lactic acid and the poorly soluble drug is used to increase the absorption of the drug and prevent side effects. Lactic acid is also a raw material for making erythromycin icing, so it is widely used in the pharmaceutical industry. 4. Leather industry Generally, the lactic acid content of leather is 40%. It has low requirements on the quality of lactic acid, dark color and odor can be used. The tanning industry mainly uses it to remove lime from mink, also called deashing. The quality of leather after deashing with lactic acid is better than other acids. The quality of deliming is good, and high-grade leather must also be treated with lactic acid. In the production of cigarettes, lactic acid can be used to remove impurities in the tobacco, and the bitterness is removed. Therefore, the grade of the low-grade tobacco can be improved by the lactic acid treatment. Lactic acid is used as a pH control agent in the production of cellophane paint; in the wool textile industry, it is used for pre-chrome mordant dyeing to reduce the chromate content of wool and prevent oxidation of fibers; in the post-treatment of silk and rayon, as pH adjustment Agent for brightening treatment to increase the color of the yarn. Pure lactic acid is odorless, and the product has a slightly similar flavor of cool milk. When the concentration is appropriate, it has a pleasant sour taste. When lactic acid is used as a raw material, it is used as a component of dairy products such as butter, cool milk, buttered hard candy, milk, and cheese. The main derivative of lactic acid: calcium stearoyl acid is used as a food additive. Adding 0.3%-0.5% calcium stearoyl lactate to the flour can make the bread bulky, increase the volume by 30%-40%, and delay aging. When sodium lactate is used as a flavoring agent, it is used in the production of casein plastic whitening agents, antifreeze agents, moisturizers and pharmaceuticals. Calcium lactate can be used as a nutritional supplement. Ferrous lactate is used in food fortification and medical treatment for iron deficiency anemia. Lactic acid esters, including methyl esters, ethyl esters, butyl esters and the like, are used as solvents, flavoring agents, and the like. Lactic acid and its sodium, calcium and other derivatives are non-toxic and safe food additives. Stearoyl lactylate is used in emulsifiers and baked goods; sodium lactate is used for intravenous injection; synthetic lactic acid is used instead of natural fermented lactic acid for cheese and other dairy products to acidify and coagulate milk or cream. These three uses double the production of lactic acid in the United States. At any time with the development of the food industry, the potential market for lactic acid is very large.
Acids and flavors of foods, preservatives, preparation of lactate, plasticizers, complexometric titration analysis, magnesium and aluminum, determination of carbon dioxide binding in plasma, determination of copper and zinc.