Experimental research on spinach freeze-drying based on vacuum freeze dryer
The vacuum freeze-drying technology of vegetables has been popularized and applied at home and abroad,but the current research on the vacuum freeze-drying process of vegetables is still not in-depth,and it is necessary to continuously conduct theoretical research and experimental summary on the vacuum freeze-drying of vegetables.Takes spinach as the research object,and expounds the corresponding heat and mass transfer mechanism around the freeze-drying model of the vegetable.Then,the vacuum freeze-dr-ying machine and related equipment are used to conduct experiments on spinach,and the effects of different set temperatures on product quality are analyzed.Influence,the reason-able technical process was studied,and the quality changes before and after spinach were observed.The results showed that the experimental section was set reasonably,and the spinach dried by vacuum freeze-dried had good rehydration,which not only maintained the inherent color,flavor and shape of fresh vegetables,but also effectively maintained its nu-tritional components.The research results can provide a reference for the vacuum freeze-drying technology of spinach,and promote the continuous development of this technology.
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