Abstract:

Vegetables can reduce water content after dehydration, which is benefit for long-term preservation, transportation as well as carryover at normal temperature after dehydration. Drum-type drier has been widely employed in some small processing plants to produce dehydrated vegetables. However, the roller speed is one of the key factors that affect the quality of dehydrated vegetables. In this study, stress condition and movement track of vegetables in drum were analyzed to acquire the optimal roller speed and corresponding parameters, which will provide theoretical basis to improve the quality of dehydrated vegetables.

Key words: food processing, dehydrated vegetable, drum-type drier, roller speed