1.green food presevative
2.a lot of mold can be restrained.
3.also useful for some bacteria.

Sodium diacetate is a molecular compound, with 39% of free acetic acid molecule, will be strong penetration into a variety of harmful bacteria and fungal cell wall, make a protein denaturation and enzyme to interfere with the interaction between cells, thus inhibiting and so they can not kill the sterilization cell growth and reproduction, play a major role for the products of free acetic acid molecule, separated from acetic acid solution of acetic acid is more effective than ionization.

As an antiseptic antifungal preservative, it molds (Aspergillus flavus, Aspergillus fumigatus, Aspergillus niger, Aspergillus green, white and aspergillus, fungi tiny root hairs, Candida, etc.) have a strong inhibitory effect; bacteria (Escherichia coli, Listeria, Gram-negative bacteria etc) have to some extent. But lactic acid bacteria, yeast bread almost does not work.