Patent ID: 8877272
Filing Date: 2014-11-04
Classification: A23B,A23K,A23L,Y10S

Abstract:
1. A method for applying a preserving agent for foods or animal feeds to be preserved, comprising mixing propionic acid and glycerol at a temperature of 280° C., and under vacuum; obtaining a composition comprising 1-monopropionine and 3-monopropionine, wherein said composition being a translucent viscous liquid with a melting point of 8° C.; and making a first concentration of propionic compound within a range from 48% to 52% by weight of the preserving agent, wherein said propionic compound comprising pronionic acid in salt or free acid form and monopropionine in esterified form; and applying the preserving agent with the second concentration of said 1-monopropionine in said composition at 0.05% to 1% by weight of a material to be preserved.