Method for processing freeze-dried fruit and vegetable products

A processing method and product technology, which is applied in the field of processing high-quality dehydrated food, can solve the problems of high production cost and restrict the development of freeze-dried food, and achieve the effect of low production cost, low operating cost and promotion of development

Inactive Publication Date: 2012-08-01
刘三海
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

All of these have resulted in higher production costs of freeze-dri

Method used

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  • Method for processing freeze-dried fruit and vegetable products
  • Method for processing freeze-dried fruit and vegetable products
  • Method for processing freeze-dried fruit and vegetable products

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Freeze-dried lychee processing process

[0034] (1) Selection of raw materials The raw materials are required to be fresh, free from disease, damage, and normal in color.

[0035] (2) Screening According to the raw material acceptance method, the qualified raw materials are screened out, and the inclusions are removed.

[0036] (3) Rinse the fruit with flowing water for washing and sterilization to remove the surface sediment. Use ozone to sterilize, ozone concentration 2mg / m 2 , Hold for 2 minutes.

[0037] (4) Dehulling and denucleating are removed with a special dehulling and denucleating machine.

[0038] (5) Cut into 4 pieces with a cutting machine.

[0039] (6) Ozone is used for sterilization, and the concentration of ozone is 3mg / m 2 , Hold for 2 minutes.

[0040] (7) Spreading trays Evenly spread the cut petals into the freeze-drying trays, with a loading capacity of 8-9kg / m 2 , the best loading capacity is 8.5kg / m 2 .

[0041] (8) Pre-freezing Pre-free...

Embodiment 2

[0050] Freeze-dried apple processing process

[0051] (1) Selection of raw materials The raw materials are required to be fresh, without damage, stored for ≤3 months after the harvest season, and the internal tissue color is uniform without discoloration.

[0052] (2) Screening According to the raw material acceptance method, the qualified raw materials are screened out, and inclusions are removed.

[0053](3) Rinse the fruit with flowing water for washing and sterilization to remove the surface sediment. Use ozone to sterilize, ozone concentration 2mg / m 2 , Hold for 2 minutes.

[0054] (4) Peeling and pitting are removed with a special peeling machine and pitting machine.

[0055] (5) Cut into 8 pieces with a cutting machine.

[0056] (6) Use 0.5% VC for color protection and sterilization. Use ozone to sterilize, ozone concentration 3mg / m 2 , Hold for 2 minutes.

[0057] (7) Spreading trays Spread the cut petals evenly into the freeze-drying trays, with a loading capac...

Embodiment 3

[0064] Freeze-dried apricot processing process

[0065] (1) Selection of raw materials, raw materials require a maturity of more than 80%, no bruises and deterioration, and uniform internal tissue color without discoloration.

[0066] (2) Screening: Screen out qualified raw materials according to the raw material acceptance method, and pay attention to removing inclusions.

[0067] (3) Wash fruit, sterilize, rinse with running water, and wash away surface sediment. Use ozone to sterilize, ozone concentration 2mg / m 2 , Hold for 2 minutes.

[0068] (4) De-nucleation is removed with a special de-nucleation machine.

[0069] (5) Cut into 4 pieces with a cutting machine.

[0070] (6) Use 0.5% VC for color protection and sterilization. Use ozone to sterilize, ozone concentration 3mg / m 2 , Hold for 2 minutes.

[0071] (7) Spreading trays Evenly spread the cut petals into the freeze-drying trays, with a loading capacity of 8-9kg / m 2 , the best loading capacity is 8.5kg / m 2 . ...

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Abstract

The invention discloses a method for processing freeze-dried fruit and vegetable products, comprising the following steps of: (1) raw material selection, (2) screening, (3) fruit cleaning and sterilization, (4) shelling and kernel removal, (5) cutting, (6) sterilization, (7) traying, (8) pre-freezing, (9) freeze-drying and (10) packaging. By the adoption of the method for the freeze-dried fruits and vegetables, the investment cost of production equipment is less, and the reasonable freeze-drying time is controlled, so that the operation cost of equipment is more economical, and the production cost of the whole freeze-dried food is lower, therefore the development of the freeze-dried food is largely promoted.

Description

technical field [0001] The invention relates to vacuum freeze-drying technology, in particular to a processing method for producing high-quality dehydrated food. In this method, the moisture in the pre-frozen food is directly sublimated into water vapor in an ice state and removed without melting the ice, so that the food is dried to produce freeze-dried food. Background technique [0002] Freeze-dried food can keep the food structure, nutritional components and flavor substances basically unchanged, especially the highest retention rate of physiologically active components, which is the main reason why some functional foods use freeze-dried food as the base material. [0003] Freeze-dried food, especially freeze-dried fruit and vegetable products, has no cracking, no shrinkage, and maintains the original shape and color; fruit and vegetable products have no surface hardening, and the tissue is porous and spongy, so it has good rehydration performance and is convenient to ea...

Claims

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Application Information

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IPC IPC(8): A23B7/024
Inventor 刘三海
Owner 刘三海
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