《表4 不同干燥条件下党参的水分有效扩散系数》

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《党参根气体射流冲击干燥特性和干燥模型（英文）》

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Eawas an indicator of the required energy to remove moisture from the inside to outside of the drying product[6]，and the Eaof Codonopsis pilosula roots was 15.86 kJ·mol-1calculated by plotting ln Deffversus the reciprocal of the temperature（T+273.15）in our study as shown in figure 4，which means that removing 1 kg water from Codonopsis pilosula roots requires the minimum energy of 881.11 kJ，and it is in the range of 12.7 to110.0 kJ mol-1for most agriculture materials[24].However，the Eaof Codonopsis pilosula roots we obtained is much smaller than that of pumpkin slices[25]and nettle leaves[26]，this phenomenon might be attributed to the fact that the material shape，tissue structures and the components of the product have a definitive effect on its Ea.