Lactic acid
Food Industry
1) Lactic acid has a strong antiseptic and fresh-keeping effect, and can be used in fruit wine, beverages, meat, food, cake making, pickling of vegetables (olives, gherkins, pearl onions), as well as canning processing, grain processing, and fruit storage. pH value, antibacterial, prolonging shelf life, seasoning, maintaining food color, improving product quality, etc.; [1]
2) In terms of seasonings, the unique sour taste of lactic acid can increase the taste of food. Adding a certain amount of lactic acid to condiments such as salad, soy sauce and vinegar can maintain the stability and safety of microorganisms in the product, and at the same time make the taste more mild ;
3) Due to the mild and moderate acidity of lactic acid, it can also be used as the first choice sour agent for carefully formulated soft drinks and fruit juices;
4) When brewing beer, adding an appropriate amount of lactic acid can not only adjust the pH value to promote saccharification, facilitate yeast fermentation, improve the quality of beer, but also increase the flavor of beer and prolong the shelf life. In liquor, sake and fruit wine, it is used to adjust pH, prevent the growth of bacteria, enhance sourness and refreshing taste; buffered lactic acid can be used in hard candy, fruit candy and other candy products, with moderate sourness and low sugar conversion rate. Lactic acid powder can be used for powdering all kinds of candies as a powdery sour agent;
5) Natural lactic acid is a natural inherent ingredient in dairy products. It has the taste of dairy products and good anti-microbial effect. It has been widely used in formulated yogurt cheese, ice cream and other foods, and has become a popular dairy sour agent;
6) Lactic acid powder is a direct acidity regulator for the production of buckwheat. Lactic acid is a natural fermented acid, so it can make bread have a unique taste; lactic acid, as a natural acidity regulator, is used for flavoring and bacteriostasis in baked goods such as bread, cakes and biscuits, and can improve the quality of food and maintain color. , to extend the shelf life. [1]
Medicine
1) The use of lactic acid steam disinfection in wards, operating rooms, laboratories and other places can effectively kill bacteria in the air, reduce diseases and improve health;
2) Widely used as preservatives, carriers, cosolvents, pharmaceutical preparations, pH adjusters, etc. in medicine;
3) Polylactic acid can be obtained by polymerizing lactic acid, which can be drawn into silk and spun into thread. This thread is a good surgical suture. No need to remove the suture after the suture is healed. It can be automatically degraded into lactic acid and absorbed by the human body without adverse consequences. In particular, the internal surgical sutures eliminate the trouble of removing the sutures in a second operation. This polymer compound can be used as an adhesive for organ transplantation and bone setting;
4) Lactic acid can be directly formulated into medicines or daily health care products;
5) The restrictive effect of joint muscle vitality and anti-fatigue.
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