1. Natamycin has been used for decades in the food industry as a hurdle to fungal outgrowth in dairy products and other foods.

(1) As an aqueous suspension (such as mixed into a brine) sprayed on the product or into which the product is dipped, or in powdered form (along with an anticaking agent such as
cellulose) sprinkled on or mixed into the product.
(2) As a food additive, it has E number E235. Throughout the European Union, it is only approved as a surface preservative for certain cheese and dried sausage products. 

2. Natamycin has a good anti-mildew effect on the moon ,baked goods,meat products,salad drinks and other fields.
 
3. Natamycin is used to treat fungal infections, including
Candida, Aspergillus,Cephalosporium, Fusarium, and
Penicillium. It is applied topically as a cream, in eye drops,
or (for oral infections) in a lozenge.