真空冷冻干燥金枪鱼的吸湿特性研究

采用两种冻结方式对金枪鱼进行真空冷冻干燥，绘制冻干曲线。并应用静态测试法，获得相应的等温吸湿线，从而对冻干金枪鱼吸附规律进行探讨。结果表明：在温度、相对湿度相同的条件下．快速冻结方法所得冻干制品的吸湿性较大。

Research on moisture absorption characteristic of vacuum freeze dried tuna

Vacuumed frozen dried tuna slices by two kinds of freezing, we plot the curves of the freeze drying process. By using static testing, we acquire the corresponding the isothermal moisture-absorbing curves, and from which we make some exploration about the regularity of absorption of freeze dried tuna. The result shows that the moisture-absorbability of rapid freezing of freeze dried products will be better than the ordinary-freezing at the same temperature and relative humidity.