Mathematical Problems in Engineering / 2018 / Article / Tab 8

Research Article

Optimization of Microwave Vacuum Drying and Pretreatment Methods for Polygonum cuspidatum

Table 8

Variance analysis of the retention of polydatin.

Indicator compoundsSource of variationSum of squaresDegree of freedomMean squareF valueSig.

Polydatin0.991Pretreatment88.853244.42789.4500.011
Vacuum pressure9.29124.6469.3540.097
Temperature of inner material15.26627.63315.3690.061

Emodin0.939Pretreatment27.766213.8832.2730.306
Vacuum pressure1.64620.8230.1350.881
Temperature of inner material157.277278.63912.8730.072

Physcion0.944Pretreatment0.00120.0000.5350.652
Vacuum pressure0.00220.0011.4210.413
Temperature of inner material0.01620.00814.7910.063

Resveratrol0.865Pretreatment0.00820.0040.5430.648
Air pressure0.00620.0030.4280.700
Temperature of inner material0.08220.0415.4180.156