Shipin gongye ke-ji (Mar 2022)
Water Activity at Isothermal Temperature and Its Effect on Microbial Heat Resistance in Low-moisture Foods
Abstract
Water activity (aw) is the key factor defining low-moisture foods (LMFs, aw,25 ℃55 ℃). The microbial safety of LMFs and its microbial heat resistance parameters are first introduced in this article. Then the definition, detection methods, model predictions, influencing factors of aw,T and the effects of aw,T on microbial heat resistance of LMFs are summarized. Recognition and measurement of aw,T are beneficial for food industries to reduce the degree of LMFs microbial contamination and ensure consumers food safety.
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