... extend product shelf life.The application amount for mayonnaise and salad dressing should not exceed 20 mg/kg and for fermented ... food. Natamycin 50% in NaclThe application amount for mayonnaise and salad dressing should not exceed 20 mg/kg;for others,the ... , raw juice for coating use, surface of utensils, perishable food, Salad sauce, Fermented wine, etc.The FAO/WHO Joint Expert Committee ...