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Dehydrated apples and production method thereof

A production method, an apple technology, applied in the direction of preserving fruits/vegetables by dehydration, preservation of fruits and vegetables, and preservation of fruits/vegetables by radiation/electrical treatment, etc., which can solve the problems of large loss of apple nutrients, large changes in color and shape, and high production costs. problem, to achieve the effect of good appearance and color, small change in color and shape, and guaranteed crispy taste

Inactive Publication Date: 2016-06-22
HEBEI DONGFANG GREEN TREE FOOD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hot air drying is the most widely used processing method at present. The advantage is the lowest energy consumption. The disadvantage is that the nutritional components of apples are lost more and the color and shape change greatly; the apple slices made by vacuum freeze drying are better in color and shape, but the production cost is too high. Conducive to energy saving; fried drying is unhealthy and has been gradually abandoned by consumers; microwave drying can easily burn some parts of the product, suitable for drying materials with low moisture content

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: Adopt the method of the present invention to carry out the preparation of dehydrated apple slice

[0023] 1) Select fresh, non-rotten, and pest-free apple raw materials, and clean them;

[0024] 2) Peel and core the cleaned apples;

[0025] 3) Cut the apple obtained in step 2) into round slices according to the vertical direction of the core, with a thickness of 5mm;

[0026] 4) Put the apple slices obtained in step 3) into the color protection solution for color protection treatment for 15 minutes. The color protection solution uses citric acid to adjust the pH value to 3.1-3.5, and the amount of citric acid added is 0.25%;

[0027] 5) Remove and drain the apple slices obtained in step 4), and spread them on the equipment for hot air drying at a temperature of 70°C for 100 minutes;

[0028] 6) Microwave dry the semi-dried apple slices obtained in step 5) with a microwave intensity of 2.5W.g -1 , the dehydration time is 4min.

[0029] 7) Vacuum-dry the...

Embodiment 2

[0031] Embodiment 2: Adopt the method of the present invention to carry out the preparation of dehydrated apple bar

[0032] 1) Select fresh, non-rotten, and pest-free apple raw materials, and clean them;

[0033] 2) Peel and core the cleaned apples;

[0034] 3) Cut the apple obtained in step 2) into long strips in the direction parallel to the core, with a cross-sectional area of ​​100mm 2 ;

[0035] 4) Put the apple strips obtained in step 3) into the color protection solution for color protection treatment for 15 minutes. The color protection solution uses citric acid to adjust the pH value to 3.1-3.5, and the amount of citric acid added is 0.25%;

[0036] 5) Remove and drain the apple strips obtained in step 4), and spread them on the equipment for hot air drying at a temperature of 80°C for 150 minutes;

[0037] 6) Microwave dry the semi-dried apple slices obtained in step 5) with a microwave intensity of 3W.g -1 , the dehydration time is 5min.

[0038] 7) Vacuum-dry...

Embodiment 3

[0040] Embodiment 3: Adopt the method of the present invention to carry out the preparation of dehydrated apple dices

[0041] 1) Select fresh, non-rotten, and pest-free apple raw materials, and clean them;

[0042] 2) Peel and core the cleaned apples;

[0043] 3) Cut the apple obtained in step 2) into triangular cubes;

[0044] 4) Put the diced apple obtained in step 3) into the color protection solution for color protection treatment for 15 minutes. The color protection solution uses citric acid to adjust the pH value to 3.1-3.5, and the amount of citric acid added is 0.25%;

[0045] 5) Remove and drain the diced apples obtained in step 4), and spread them on the equipment for hot air drying at a temperature of 60°C for 90 minutes;

[0046] 6) Microwave dry the semi-dried apple dices obtained in step 5) with a microwave intensity of 2W.g -1 , the dehydration time is 4min.

[0047] 7) Vacuum-dry the diced apples obtained in step 6) at a vacuum degree of 0.06MPa, at a temp...

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Abstract

The invention relates to dehydrated apples and a production method thereof. The production method of the dehydrated apples comprises the following steps: (1) cleaning an apple serving as a raw material; (2) peeling and denucleating the cleaned apple; (3) cutting the apple obtained in the step (2) into slices, strips or triangular dices as required; (4) performing color protection on the apple blocks obtained in the step (3); (5) drying the apple blocks obtained in the step (4) under high temperature; (6) drying half-dried apple blocks obtained in the step (5) in microwaves; (7) drying a product obtained in the step (6) in vacuum; (8) bagging the product obtained in the step (7), filling the bag with nitrogen, and sealing the bag to obtain the dehydrated apples. According to the preparation method, a combined type drying technology is applied to a process of preparing the dehydrated apples, so that the negative effect on the color and the nutritional components of the apples due to long-term heating is effectively avoided, and a dehydrated apple product which has a color close to a fresh apple, has an original apple flavor, tastes crispy and cannot go bad under normal temperature for 2 years can be obtained.

Description

technical field [0001] The invention relates to a dehydrated apple and a production method thereof. Background technique [0002] Apple is one of the main fruit products in my country, and it is also a fruit variety that we eat more in our daily life. For a long time, apples have been regarded as a health-preserving fruit for their sufficient vitamins and nutrients. Eating apples often can not only beautify the skin, but also improve immunity, lower blood cholesterol, and prevent arteriosclerosis and other cardiovascular diseases. [0003] At present, my country's apples are mainly eaten fresh and sold fresh. Apples are fruits with high water content. After picking, they need to be stored or processed, otherwise they will be easily spoiled. my country's apple processing products include canned food, fruit shop, jam, fruit juice, fruit wine, fruit vinegar and so on. Dehydrated apples are also a means of deep processing. As a fashionable snack food, dehydrated apples have b...

Claims

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Application Information

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IPC IPC(8): A23L19/00A23L5/41A23B7/02A23B7/015
CPCA23B7/0205A23B7/015A23B7/02A23V2002/00A23V2250/032A23V2200/048
Inventor 王立军王成刘凤娜杨风华潘仕博李伟宋亮潘腾
Owner HEBEI DONGFANG GREEN TREE FOOD
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