微波干制南瓜片干燥规律及工艺优化研究

进行了微波干燥南瓜片干燥脱水与耗电试验，获得微波干燥南瓜片失水特性及耗电特性，并建立了微波干燥南瓜片干燥模型；进行了4因素4指标的二次正交回归试验，得出各指标(外观质量、复水系数、单位时间降水率及单位耗电量)的回归方程，采用了非线性规划对各指标进行目标优化，得出各目标函数的发射功率、切片厚度、前期时间、缓苏时间的最优组合，并对4因素对4指标影响的显著性分析、参数综合优化，提出了参数的最佳组合。

Drying law and technology optimization of pumpkin slice dried by microwave

The characteristics of the dehydration and power consumption on microwave drying pumpkin slice were obtained, and the mathematical model of microwave drying pumpkin slice through the tests of power consumption and dehydrating of microwave drying on pumpkin slice was developed. By using orthogonal regression test on the effects of 4 factors on 4 indexes, the regressive equations of various indexes, i.e. power consumption, dehydrating rate, the ability of absorbing moisture and quality of appearance were obtained. Through nonlinear programming optimizing the parameters, the better combinations of parameters, i.e. power, slice thinkness, dehydrating rate, load, on various indexes were obtained, significance analysis of parameter difference and synthetical optimization of 4 factors on 4 indexes were conducted, and the better combinations of parameters were obtained.