Natamycin 50% min. in lactose/glucose/NaCL ISO 9001,ISO 22000,Kosher, Halal Natural ... colored crystalline powder, no odour, tasteless, 3 mol water content, melting point: 280°C(decomposed);l Low solubility in water ... is usually made of 50% Natamycin mixed with 50% lactose or NaCl, we just call them Natamycin 50.Quality Standard ... temperature is below 15°C. Natamycin 50% min. in lactose/glucose/NaCL