Making method of dried apples

A technology for dried apples and apples, applied in the directions of food drying, preservation of fruits and vegetables, and functions of food ingredients, etc., can solve the problems of large loss of nutrients in apples, large changes in color and shape, and high production costs, and achieve good appearance and color, color and shape. Small change, the effect of ensuring crispy taste

Inactive Publication Date: 2018-05-18
王安明
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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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1: Preparation of dried apple slices using the method of the present invention

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

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

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

[0026] 4) Put the apple slices obtained in step 3) into the color protection solution for 15 minutes, adjust the pH value of the color protection solution to 3.1-3.5 with citric acid, and add 0.25% of citric acid;

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

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

[0029] 7) Vacuum dry the apple slices obtained in step 6), the vacuum degree is 0.06MPa, the temperature i...

Example Embodiment

[0031] Example 2: Preparation of dried apple sticks using the method of the present invention

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

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

[0034] 3) Cut the apple obtained in step 2) into long strips parallel to the core direction, with a cross-sectional area of ​​100mm2;

[0035] 4) Put the apple strips obtained in step 3) into the color protection solution for 15 minutes, adjust the pH value of the color protection solution to 3.1-3.5 with citric acid, and add 0.25% of citric acid;

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

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

[0038] 7) Vacuum drying the apple slices obtained in step 6), the vacuum degree is 0.08MPa, the temperat...

Example Embodiment

[0040] Example 3: Preparation of dried apple cubes using the method of the present invention

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

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

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

[0044] 4) Put the diced apples obtained in step 3) into the color protection solution for 15 minutes, adjust the pH value of the color protection solution to 3.1-3.5 with citric acid, and add 0.25% of citric acid;

[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 and a time of 90 minutes;

[0046] 6) Microwave drying the semi-dried diced apple obtained in step 5), the microwave intensity is 2W.g-1, and the dehydration time is 4min.

[0047] 7) Vacuum drying the diced apple obtained in step 6), the vacuum degree is 0.06 MPa, the temperature is 60° C., and the time is 3 hours.

[0048] 8) Pack the product obtained ...

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Abstract

The invention relates to a making method of dried apples. A making method of dehydrated apples comprises the following steps of (1) washing apple raw materials; (2) removing peel and cores from the washed apples; (3) cutting the apples obtained in the step (2) into slices, strips or small triangle dices; (4) performing color protection treatment on the apple blocks obtained in the step (3); (5) performing hot air drying on the apple blocks obtained in the step (4); (6) performing microwave drying on the half-dried apple blocks obtained in the step (5); (7) performing vacuum drying on the products obtained in the step (6); and (8) bagging the products obtained in the step (7), inflating nitrogen, and performing sealing so as to obtain the dehydrated apples. According to the making method disclosed by the invention, a combined type drying technology is applied in the process of making the dehydrated apples, so that the negative influences on color, luster and nutrient contents of the apples by long-time heating treatment are effectively avoided, and a dehydrated dried apple product with color and luster close to those of fresh fruits, with the original fragrance of the apples, beingcrisp in mouth feel, and which can be maintained at room temperature for two years or above without deterioration is obtained.

Description

technical field [0001] The invention relates to a method for preparing dried apples. 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. Dried apples are also a means of deep processing. As a fashionable snack food, dried apples have become popular in domestic...

Claims

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Application Information

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IPC IPC(8): A23B7/01A23B7/02A23B7/148A23L5/41
CPCA23B7/01A23B7/02A23B7/0205A23B7/148A23L5/41A23V2002/00A23V2200/048A23V2250/032A23V2300/10
Inventor 王安明
Owner 王安明
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