Propionic acid
CAS No.:79-09-4
Physical and chemical properties
Colorless oily liquid. Slightly spicy oil flavor. The boiling point is 141 ℃, the melting point is - 22 ℃, and the relative density D20 is 0.99. It is miscible with water, ethanol, and other organic solvents.
Toxicological basis
① LD50: rat acute oral 5600mg / kg (BW)
② ADI: no requirement (FAO / WHO, 1994).
③GRAS：FDA-21CFR 184.1081.
Application
GB 2760-2014 stipulates that the use standard of propionic acid is the same as that of sodium propionate.
FAO / who (1984) stipulates that it can be used for processing cheese, at 3.0g/kg; EEC and Japan allow 2.5g/kg to be used in bread, pastry, and other dairy processed products. The general code standard of food additives stipulates that the maximum dosage for whey cheese is 3000 mg/kg.
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