NataPro brand natamycin is effective in a variety of food products across a wide range of pH levels(3.5-9.5). Natamycin is currently approved by the FDA for use on the surface of cuts and slices of cheese where the standards for such cheese provides for the use of safe and suitable mold inhibiting ingredients. According FDA,72.155, 1994. spraying 200-300mg/kg water solution on the surface of the cheese slice. According GB2760-1997: spraying (or digging in) 200～300mg/kg mixed fluid suspension to the surface of cheese, meat food, meat soup, ham, flavor moon cakes, fresh juice, easily-molded food, and various food processing devices. Residual less than 10mg/kg.