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Method for preparing crispy sliced apple pears

A technology of apple pear and crisp slices, which is applied in the field of food processing, can solve the problems of undiscovered apple pear slices, etc., and achieve the effects of increased storage time, convenient transportation, and good rehydration

Inactive Publication Date: 2012-07-11
李英姬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At home and abroad, there are only honey-made pear series and dried pears with other ingredients added by ordinary drying, and apple pear slices dried by this freeze-drying method without adding any other ingredients have not been found.

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0008] A kind of preparation method of crisp apple pear slices, at first select high-quality, uniform size Yanbian apple pears of Yanbian regional products, clean and peel;

[0009] Then slice pretreatment, slice is to slice whole pear or half pear, the thickness of slice is 2 ~ 6mm, described pretreatment refers to that sliced ​​apple pear slices are placed one by one on the drying plate of freeze drying equipment , each surface is fully in contact with the drying plate;

[0010] Next, color protection can be done in one of two ways. One way is to ensure that the slicing and pretreatment process is completed within 1 hour; the other way is to use 0.5~ Soak apple and pear slices in 0.6% citric acid solution for 15 minutes to protect the color, and then place them for pretreatment;

[0011] Then perform pre-freezing: set the pre-freezing temperature range to -35°C to -45°C, preferably -42°C, and freeze for 2 to 3 hours;

[0012] Then freeze-drying: Freeze-drying conditions: p...

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PUM

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Abstract

The invention relates to a method for preparing crispy sliced apple pears. The method comprises the following steps of: cleaning; peeling; slicing full pears or half pears and pre-treating, wherein the slice thickness is 2 to 6mm; protecting color, namely finishing the slicing and pre-treatment process within 1 hour, or soaking in a citric acid solution at the concentration of 0.5 to 0.6 percent for 15 minutes for color protection; pre-freezing at the temperature of -35 to -45 DEG C for 2 to 3 hours; freeze-drying, namely sublimating in a cold trap at the temperature of -50 DEG C under the pressure of 100Pa and at the sublimation temperature of -5 DEG C for 7 hours, heating, raising the temperature of a hot plate to be 40 to 50 DEG C by using a program, maintaining for 4 to 5 hours, and controlling the final water content of the crispy sliced apple pears to be less than 8 percent; and packaging. Additives are not added in the preparation process; the original nutrient components of apple pears are not damaged; the original fragrant taste of the apple pears is retained; and the sliced apple pears are crispy, sour, sweet and palatable.

Description

technical field [0001] The invention relates to the field of food processing, in particular to a method for preparing crisp apple and pear slices. Background technique [0002] The Yanbian area of ​​Jilin Province is the main producing area of ​​apple pears, which is rich in apple pear resources and enjoys the title of the first apple pear orchard in Asia. The biggest feature of apple pears is that they are rich in juice, milky white in color, and moderately sweet and sour. At the same time, it is rich in vitamin C, calcium, and iron. It is rich in nutrients and has the effects of nourishing, eliminating phlegm, relieving cough, reducing fire, clearing heart, and diuresis; it can also increase appetite and help digestion. At present, Yanbian apple pears are still mainly eaten and sold fresh, but because of their rich juice, they also bring many changes to storage and carrying. At home and abroad, there are only honeydried pear series and dried pears that are dried by addin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/212A23L19/00
Inventor 李英姬聂凤环
Owner 李英姬
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