- Lactic acid liquid or powder can offer performances of liquid lactic acid and natural fruit taste. - Lactic acid contains essential calcium ions. - Lactic acid can be used as additive of food or feed to improve taste and increase shelf life, including canned food, bread, flour,cake, and feed industry. - Lactic acid also can be used as flavoring agent of food to adjust sour taste of solid and powdery food. Besides, - Lactic acid also can increase shelf life of food.