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Cold air drying method for dried fruit

A cold air drying and fruit technology, applied in cocoa, confectionery industry, food science, etc., can solve the problems of unreasonable and effective drying of fruits, etc., and achieve the effect of bright and attractive surface color, soft and hard texture

Inactive Publication Date: 2012-09-19
合浦果香园食品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a cold air drying method for preserved fruit, which overcomes the deficiency that the traditional drying method cannot dry fruit reasonably and effectively, and improves the comprehensive quality of preserved fruit through the invention, so that the quality of preserved fruit can reach a higher level

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] 1. Peel the pineapple, wash it, cut it into pieces, blanch it in boiling water for 20 seconds, dip it in a high-concentration sugar solution with a sugar content of 70%, so that the sugar content of the fruit slices reaches 35%, and make the fruit slices The hygienic indicators meet the required standards, and dry with hot air at 50-60°C for 8 hours to make the fruit slices reach a moisture content of 30-35%, and obtain preserved fruit pieces for later use;

[0013] 2. Take the pineapple pieces and lay them flat on the drying tray with a thickness of no more than 10mm, and put the drying tray covered with pineapple pieces through the drying rack into a drying device with a volume of 180-200 cubic meters for drying;

[0014] 3. In the drying device, start two fans with a power of 0.37 kilowatts, so that the air volume can reach 28,000 cubic meters per hour, so that the air in the drying device can flow, and the gas flow rate is 1.0-1.5 m / s, and start two dehumidifiers at ...

Embodiment 2

[0016] 1. Take the mango, wash and remove the core, cut into pieces, blanching in boiling water for 15 seconds, dipping in a high-concentration sugar solution with a sugar content of 70%, so that the sugar content of the fruit slices reaches 35%, and makes the fruit slices hygienic The chemical index reaches the standard that meets the requirements, and is dried with hot air at 50-60°C for 8 hours, so that the fruit slices reach a moisture content of 30-35%, and preserved fruit pieces are obtained for later use;

[0017] 2. Take the mango pieces and lay them flat on the drying tray, the thickness is not more than 10 mm, and put the drying tray covered with mango pieces through the drying rack into the drying device with a volume of 180-200 cubic meters for drying;

[0018] 3. In the drying device, start two fans with a power of 0.37 kilowatts, so that the air volume can reach 28,000 cubic meters per hour, so that the air in the drying device can flow, and the gas flow rate is 1...

Embodiment 3

[0020] 1. Wash the cherry tomatoes, remove the stems, blanching in boiling water for 10-30 seconds, dipping in a high-concentration sugar solution with a sugar content of 68-72% to make the sugar content of the fruit slices reach 33-36%, and Make the hygienic indicators of the fruit slices meet the required standards, dry the fruit slices with hot air at 50-60°C for 6-8 hours, make the fruit slices reach a moisture content of 30-35%, and obtain preserved fruit pieces for later use;

[0021] 2. Spread the cherry tomatoes on the drying tray, only one layer, and put the drying tray covered with pineapple pieces through the drying rack into a drying device with a volume of 180-200 cubic meters for drying;

[0022] 3. In the drying device, start two fans with a power of 0.37 kilowatts, so that the air volume can reach 28,000 cubic meters per hour, so that the air in the drying device can flow, and the gas flow rate is 1.0-1.5 m / s, and start two dehumidifiers at the same time 1. Two...

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PUM

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Abstract

The invention discloses a cold air drying method for a dried fruit. The existing drying method includes heat drying, freeze drying, vacuum drying, infrared drying and the like, and the heat drying or freeze drying method is commonly used. The fruit contains glucose, fructose, sucrose, cellulose, vitamin, pigmentum, enzyme, water substance and protein which are all sensitive to temperature, and if the temperature is low, the dried fruit product becomes hard and is bad in taste; if the temperature is overhigh, the active ingredients in the fruit can be broken, and the dried fruit changes color and taste and looses the flavor. The common actions of an air conditioner, a fan and a dehumidifying device are utilized, the drying is conducted at the temperature lower than or equal to 37 DEG C, the temperature in the whole drying process is similar to room temperature in the southern region in China, so that the active ingredients contained in the fruit are not damaged, and the flavor of the fruit is maintained.

Description

technical field [0001] The invention relates to a cold-air drying method for preserved fruit, which belongs to the technical field of fruit deep processing. Background technique [0002] Fruits in southern my country generally have a concentrated ripening period, a large number of concentrated and mature fruits, and the fruit shelf life is short. When the fresh-keeping technology is not very mature, it is a good way to increase the added value of fruits. . As we all know, the key technology for the preparation of preserved fruit is drying, and the drying quality directly affects the quality of preserved fruit, because the quality of preserved fruit is related to the water content, appearance, color, mouthfeel, flavor, hygienic index and texture of preserved fruit. Therefore, preserved fruit Proper drying methods are crucial for preserved fruit production. Existing drying methods are nothing more than heating drying, freeze drying, vacuum drying, infrared drying, etc., heati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23G7/02
Inventor 满桂富李日坤宁进辉许英本
Owner 合浦果香园食品有限公司