Abstract:  Dehydration pak choi recovery and rehydration were studied in this paper.After 100℃3 minutes treatment,Pak choi was immersed in 15％dextrin plus 15％sucrose and 10％sodium chloride solution for 30 minutes.It was treated with 30～40Kgf pressure for 1 minute when the moisture concent of dehydrate pak choi reached 70％.The treatment could improve rehydration rate of dehydrated pak choi significantly.It could increase 85％rehydration ratein compare with the control.

Key words: Pak choi Dehydration Rehydration