Method for preparing crisp fruit and vegetable chips

Abstract

The invention discloses a method for preparing crisp fruit and vegetable chips and belongs to the technical field of preparation of crisp fruit and vegetable chips. According to the method, fruits and vegetables are cleaned and sliced and mixed and soaked with sodium bicarbonate solution, the fruits and vegetables are taken out of a food steamer and led into superheated steam, the fruits and vegetables are mixed with mixed liquid and stand, the aired fruit and vegetable chips are obtained after ultrasonic oscillation, filtration, drying, freezing, unfreezing and natural airing, the fruit and vegetable chips are subjected to heat preservation and puffing, and the crisp fruit and vegetable chips are obtained through drying. The method for preparing the crisp fruit and vegetable chips has the advantages that preparation steps are simple, the temperature controllability in the preparation process is good, and there is no charring phenomenon; the obtained crisp fruit and vegetable chips are good in puffing degree and are puffed evenly, the puffing rate is improved by 40-66% compared with when other methods are adopted, and the crisp fruit and vegetable chips are crisp in taste and have good color and flavor.

Description

technical field [0001] The invention relates to a method for preparing fruit and vegetable chips, and belongs to the technical field of fruit and vegetable chips preparation. Background technique [0002] my country is a large agricultural country with rich fruit and vegetable resources and a wide distribution range. However, the intake of fruits and vegetables in our country is insufficient, especially children's partial eclipse is serious, and the intake of vegetables and vitamins is low. Fruit and vegetable crisps are all natural, highly nutritious, and crispy in taste, suitable for all kinds of people. Fruit and vegetable crisps are a popular snack food in the world. Fruit and vegetable chips is the collective name of fruit chips and vegetable chips. It is a variety of fruit and vegetable chips produced by vacuum frying and dehydration with fruits and vegetables as the main raw materials. [0003] At present, the preparation methods of fruit and vegetable chips include ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the disadvantages of poor temperature controllability of fruit and vegetable chips prepared by the current differential pressure puffing method, low puffing degree of the finished product, poor appearance and crispness, and prone to scorching, a method for washing fruits and vegetables is provided. Sliced, mixed with sodium bicarbonate solution and soaked, taken out and put into superheated steam in the steamer, mixed with the mixed solution and left still, after ultrasonic vibration, filtered, dried, frozen, thawed, and naturally aired to obtain the dried fruit and vegetable slices, the The method of heat preservation puffing and drying to obtain fruit and vegetable crisps, the invention uses sodium bicarbonate to dissolve in the fruit and vegetable, and when the fruit and vegetable are treated by superheated steam, the sodium bicarbonate decomposes to form carbon dioxide, forming micropores inside the fruit and vegetable, and the superheated steam brings Part of the water in the fruits and vegetables is taken away, and then ascorbic acid and citric acid are used under the action of ultrasound to completely enter the fruits and vegetables through the micropores to fix the color, and then the freezing treatment is used to increase the color fixing effect, and at the same time, a small amount of water in the fruits and vegetables is frozen, and thawed at room temperature , the water flows out, expanding the gaps in the fruits and vegetables, and finally puffing through the pressure difference to obtain fruit and vegetable chips, which effectively solves the problem of poor temperature controllability of the fruit and vegetable chips prepared by the pressure difference puffing method, low puffing degree of the finished product, poor appearance and crispness , and prone to burning problems