Food industry: * Lactic acid has a strong anti-corrosion effect and can be used in fruit, wine, beverage, meat, food, pastry and so on. * In terms of seasoning, lactic acid's unique sour taste can increase the delicious food, adding a certain amount of lactic acid in salad, soy sauce, vinegar and other condiments can maintain the stability and safety of the microorganism in the product, and make the taste more mild; * Because of its mild acidity, lactic acid can also be used as the first choice for carefully prepared soft drinks and fruit juices. * In brewing beer, adding lactic acid can not only adjust pH value and promote saccharification, but also help yeast fermentation, improve beer quality, but also increase beer flavor and prolong shelf life. * Lactic acid is a naturally fermented acid that gives bread its unique flavor; As a natural acid regulator, lactic acid is used in bread, cakes, biscuits and other baked foods for flavor and bacteriostasis, and can improve food quality, maintain color, and extend shelf life. Medicine: * In ward, operating room, laboratory and other places, uselactic acid steam disinfection, can effectively kill the bacteria in the air, play a reduction of disease, achieve the purpose of improving health; * Widely used in medicine as preservatives, carrier agents, co-solvents, pharmaceutical preparations, pH regulator, etc. * Lactic acid can be directly formulated into medicine or daily health care products. * Restriction of muscle vitality and anti-fatigue. Lactic acid is also widely used in other industries, like fermentation industry, textile, cigarette industry, cosmetic industry, etc.