Kojic acid can be used in several areas, such as cosmetics, food additives, pharmaceuticals etc. Because kojic acid and its ramification can inhkbit safest the melanin frowing of body-skin, its application is being more and more wide in beauty-white csmetic, bath lotion, toothpaste etc. Because its actions of antibacterial antioxidative and color-care, kojic acid can be widely used in food aseptic, antioxidant of frease and food, antistaling agent of fruit and veggie, and color-care antistaling agent of meat products and marine products and marine products. In addition, kojic acid can also be used in antibiotic synthetical intermediate products, agriculture plant tutelage and chemical reagent, etc.
Kojic acid is an inhibitor of bacteria, viruses, and fungi. Kojic acid inhibits the catecholase activity of tyrosinase, which is the rate-limiting, essential enzyme in the biosynthesis of the skin pigment melanin. Kojic acid also is consumed widely in the Japanese diet with the belief that it is of benefit to health. Indeed, it has been shown to significantly enhance neutrophil phagocytosis and lymphocyte proliferation stimulated by phytohemagglutinin. Melanocytes treated with kojic acid become nondendritic with a decreased melanin content. Additionally, it scavenges reactive oxygen species that are released excessively from cells or generated in tissue or blood.