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A kind of dried peach slices and its preparation process

A preparation process and technology for peach slices, which are applied in the confectionery industry, confectionery, food science and other directions, can solve the problems of large loss of aroma, nutrients, long hot air drying time, and product quality decline, and achieve the preservation of Vc content and color preservation. and flavor and quality, low cost effect

Active Publication Date: 2018-05-22
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A single drying method has its own defects, such as long hot air drying time, poor quality of dried food, large color change, large loss of aroma and nutrients, hard tissue structure, poor rehydration; microwave drying often occurs Excessive heating will lead to a decline in product quality, loss of nutritional flavor, etc.; although vacuum freeze-drying has good quality dry products, the investment cost is high

Method used

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  • A kind of dried peach slices and its preparation process
  • A kind of dried peach slices and its preparation process
  • A kind of dried peach slices and its preparation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Step 1. Choose fresh green peaches with green color, no insect eyes, and no damage. Peel the selected peaches, wash them, and cut them longitudinally. Then take 3.0g±0.1g peach slices with similar shapes and sizes, and put them in In the color-protecting agent, the color-protecting agent is a mixture of 2% NaCl and 0.2% citric acid in mass fraction, the surface of the peach slices is washed with distilled water for more than 3 times, the color-protecting agent is washed off, and then absorbed with absorbent paper. dry surface moisture;

[0027] Step 2: Configure 60% sucrose solution in the Erlenmeyer flask, put the peach slices in the previous step, the mass ratio of peach slices to sucrose solution is 1:10, plug the bottle mouth with a stopper, and place it in a constant temperature shaker to vibrate For osmosis dehydration, set the heating temperature to 50°C and the rotation speed to 120 rpm, let the peach slices permeate and dehydrate for 2 hours, rinse the surface ...

Embodiment 2

[0039] Step 1, as described in Example 1

[0040] Step 2: Configure 60% sucrose solution in the Erlenmeyer flask, put the peach slices in the previous step, the mass ratio of peach slices to sucrose solution is 1:10, plug the bottle mouth with a stopper, and place it in a constant temperature shaker to vibrate For osmosis dehydration, set the heating temperature to 50°C and the rotation speed to 120 rpm, let the peach slices permeate and dehydrate for 2 hours, after taking out, rinse the surface of the peach slices with distilled water for more than 3 times, and dry the surface moisture with absorbent paper;

[0041] Step 3. Spread the peach slices from the previous step in a microwave oven for microwave-assisted drying. Set the power to 200W and dry for 45 seconds. During the drying process, take out the peach slices and turn them over to continue drying. After the semi-finished product is obtained, dry it with hot air and use electric heating to keep the temperature. Dried i...

Embodiment 3

[0043] Step 1, as described in Example 1

[0044] Step 2: Configure 60% sucrose solution in the Erlenmeyer flask, put the peach slices in the previous step, the mass ratio of the peach slices to the sucrose solution is 1:10, plug the bottle mouth with a stopper, and place it in a constant temperature shaker to vibrate For osmosis dehydration, set the heating temperature to 50°C and the rotation speed to 120 rpm, let the peach slices permeate and dehydrate for 2 hours, after taking out, rinse the surface of the peach slices with distilled water for more than 3 times, and dry the surface moisture with absorbent paper;

[0045] Step 3: Spread the peach slices from the previous step on a container and place them in a microwave oven for microwave-assisted drying. Set the power at 150W and dry for 60 seconds. During the drying process, take out the peach slices and turn them over to continue drying to make dried peach slices.

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Abstract

The invention discloses dried peach slices and a preparation process thereof. The specific steps are as follows: Step 1 is to peel, wash, and slice the selected peaches, put them in a color-protecting agent to protect the color, rinse the surface of the peach slices with distilled water and absorb the surface moisture; Step 2, place them in a constant temperature shaker and oscillate Sugar dehydration, rinse the surface of the peach slices with distilled water and absorb the surface moisture; step 3, carry out microwave-assisted drying to obtain semi-finished products, and then perform hot air drying to make dried peach slices. The osmotic dehydration assisted microwave hot air combined drying method involved in the present invention can shorten the drying time, reduce the production cost, and effectively retain the Vc content of the peach slices and have better texture quality. The method of the invention is simple and effective in operation, low in cost, high in efficiency, easy to popularize and use, suitable for large-scale production and use, and has broad application prospects.

Description

technical field [0001] The invention relates to dried peach slices and a preparation process thereof, belonging to the field of agricultural product processing. technical background [0002] Peach is one of the fruits that are very popular among the people. Not only is the appearance gorgeous, the meat is delicate, but also rich in nutrition. Each 100g edible part contains 7-15g of sugar, 0.2-0.9g of organic acid, 0.4-0.8g of protein, and 0.1-0.5g of fat; it also contains 3-5mg of vitamin C, 0.01-0.02mg of vitamin B1, and 0.2mg of vitamin B2. The peach kernel contains 45% oil, which can be extracted for industrial use. The roots, leaves, flowers, and kernels can be used as medicine, which has the effects of relieving cough, promoting blood circulation, laxative, and killing insects. The sweet kernels are edible, and the core shell can be used as activated carbon. At present, most of my country's peaches are used for fresh sales, only a small amount is processed into cann...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23G3/48
Inventor 阚娟金昌海张洁刘俊张年凤
Owner YANGZHOU UNIV
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