Drying method of starch-rich fruit and vegetable chips

Abstract

The invention discloses a drying method of fruit and vegetable slices rich in starch. The drying method comprises the following steps of performing pretreatment namely slicing treatment on fruits and vegetables rich in starch so as to obtain fruit and vegetable slices; quickly freezing the fruit and vegetable slices, performing freeze drying treatment, and when water in the fruit and vegetable slices reaches 60-70%w / w, stopping freeze drying treatment on the fruit and vegetable slices; performing ice crystal melting treatment on the fruit and vegetable slices at 2-10 DEG C so that the water is redistributed in the fruit and vegetable slices; and performing microwave vacuum drying treatment on the fruit and vegetable slices after the ice crystal melting treatment. According to the drying method of the fruit and vegetable slices rich in starch, disclosed by the invention, freeze drying and microwave drying are combined for use, so that the water of the fruit and vegetable slices rich in starch is controlled to be 60-70%w / w, the selection time of water transfer points is advanced, the energy consumption in the drying process is effectively reduced, the drying efficiency is improved, and besides, the finished fruit and vegetable slices are good in appearances and low in losses of nutrient components.

Description

Technical field [0001] The invention belongs to the technical field of fruit and vegetable processing, and specifically relates to a drying method for starch-rich fruit and vegetable slices. Background technique [0002] Huai yam, Dioscoreaceae (Dioscoreaceae) is also known as potato and potato medicine. The iron rod yam produced in Qinyang and Jiaozuo, Henan Province, my country is a species of Huai Yam. It is named because of its rust-colored skin and thinner and even tubers than other Huai Yams. The study found that the content of effective ingredients in iron stick yam produced in Jiaozuo, Wenxian and other places in Henan was significantly higher than other yam. Huai Yam is rich in starch, protein, a variety of functional polysaccharides, amino acids, trace elements, etc. It can not only be used as food materials, but also can be used as medicine. It has the effects of anti-oxidation, delaying aging, immune regulation, and enhancing human immunity. [0003] Potatoes, also kn...

AI Technical Summary

Problems solved by technology

[0013] The purpose of the embodiments of the present invention is to overcome the above-mentioned deficiencies of the prior art, and provide a drying method for starch-rich fruit and vegetable slices to solve the problem of high energy consumption, unguaranteed quality and lack of specific drying methods for starch-rich fruits and vegetables in existing agricultural product drying methods. Technical issues with drying methods