Process for pasteurizing or sterilizing an aqueous composition

摘要

A liquid aqueous composition is pasteurized or sterilized. A methyl cellulose ether having a methoxyl substitution of from 10 to 37 percent or a hydroxypropyl methyl cellulose ether having a methoxyl substitution of from 10 to 37 percent and a hydroxypropoxyl substitution of from 0.3 to 37 percent or a mixture of said cellulose others is added to the liquid composition. The cellulose ether is only added to the liquid composition at a temperature above the hydration temperature of said cellulose ether and the composition is then pasteurized or sterilized. The composition may be a source.