水活度

1
water activity
水活度(water activity)：即在一定温度和压力下，反应体系中的水蒸汽压与相同条件下纯水的蒸气压之比。
2
Aw
Z 值：是指灭菌时间减少到原来的 1/10 所需升高的温度或在相同灭菌时间内，杀灭 99%的微生物所需提高的温度。 水活度（Aw）：表示在天然和人为环境中，微生物可实际利用的自由水或游离水的含量。
3
active water
控制饲料水分的关键技术-八维生物-中国畜牧人网站 - 爱畜牧就爱畜牧人关键词：饲料水分;水活度;防霉 [gap=6837]Key Words: water content of feed product; active water; anti-mould

短语

1
水活度的演化特征表明，变质流体在变质作用过程中，对变质反应温度起着一定的缓冲作用。
The evolutionary feature of the water activity shows that the metamorphic fluids may have played a buffering role in the metamorphic reaction temperature during the metamorphic stages.
2
总结了有机相酶催化的优点与影响因素，其中水活度与溶剂为众多因素中最为引人注目的两大因素。
Factors which affect the efficiency of enzyme catalysis in organic media were discussed. In all of the factors. water activity and solvent are the two important factors.
3
重点介绍了生物技术方法对其改性的优越性及在生物改性过程中反应介质、水活度、生物催化剂选择上所面临的挑战。
Utilizing biological technique on modification of them was emphasized and the choices of reaction media, water activity and biocatalyst by biological method were introduced.

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