Experiment study on high electric field drying of carrot

A new drying technology with the high voltage electric field was put forward for heat sensitivity materials in the paper. The parallel drying experiments of carrot were done with High Electric Drying(HED) and Heat Drying. The carotene remaining experiments and rehydrating experiments were done. The results indicate that the drying rate of carrot is higher on high electric field drying with the drying peroid reducing by 43.3%, and that more carotene can be remained than those of heat drying. The ability in rehydrating of the carrot is higher by high electric drying than that by heat drying. The mechanism of high electric field drying was studied. And it is thought that the drying mechanism of high electric field makes up of the injection of ion, the effect of uneven electric field and function of ion wind. That is what the mass transfers by the electric energy.