| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for accurately recognizing the drying rate and evaporation rate of a dehydrated cake without need for on-the-spot testing. SOLUTION: The concentrations of >=4 components of a dehydrated cake including at least moisture, crude fat, crude protein and SiO2 among moisture, crude fat, polysaccharide, crude protein, crude fiber, ignition loss and SiO2 are measured to prepare a multiple-regression expression exhibiting the relation between the average evaporation rate and components of the dehydrated cake. The components of a sample are measured, and the average evaporation rate is obtained from the regression expression corresponding to the measured component to estimate the drying rate. Meanwhile, the relation between the time and sample weight loss outputted from a drying rate tester is sampled at intervals of 0.5-2 min to prepare a regression expression by secondary regression, and then the obtained secondary regression expression is data-processed to obtain the initial evaporation rate, average evaporation rate and drying time.
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