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Preparation method of frozen diced pear unfreezing liquid and unfreezing method

A technology for thawing liquid and frozen pears, which is applied in the field of preparation and thawing of thawing liquid for diced pears, which can solve the problems of toxicity of antibiotic ingredients and inapplicable thawing of fruits and vegetables, so as to reduce thawing time, avoid uneven thawing, and save time Effect

Pending Publication Date: 2021-08-10
BOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some of the antibiotic ingredients added have certain toxicity and are not suitable for thawing fruits and vegetables

Method used

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  • Preparation method of frozen diced pear unfreezing liquid and unfreezing method

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Experimental program
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Effect test

specific Embodiment 1

[0023] Soak the frozen diced pears in a thawing pool filled with thawing liquid, and control the water temperature in the thawing pool to maintain at room temperature. The raw material ratio of the thawing liquid is 10 parts of honeysuckle extract, 10 parts of green tea extract, 20 parts of lemon juice, 1 part of chitosan, 1 part of trehalose, 0.01 part of sodium tripolyphosphate, and the power is 225W intermittent ultrasonic Thawing treatment, the end point temperature of thawing is 4°C, and the product is obtained.

specific Embodiment 2

[0025] Soak the frozen diced pears in a thawing pool filled with thawing liquid, and control the water temperature in the thawing pool to maintain at room temperature. The raw material ratio of the thawing liquid is 20 parts of honeysuckle extract, 20 parts of green tea extract, 30 parts of lemon juice, 2 parts of chitosan, 2 parts of trehalose, 0.02 part of sodium tripolyphosphate, and the power is 300W intermittent ultrasonic Thawing treatment, the end point temperature of thawing is 4°C, and the product is obtained.

specific Embodiment 3

[0027] Soak the frozen diced pears in a thawing pool filled with thawing liquid, and control the water temperature in the thawing pool to maintain at room temperature. The raw material ratio of the thawing liquid is 30 parts of honeysuckle extract, 30 parts of green tea extract, 40 parts of lemon juice, 3 parts of chitosan, 3 parts of trehalose, 0.03 part of sodium tripolyphosphate, and the power is 375W intermittent ultrasonic Thawing treatment, the end point temperature of thawing is 4°C, and the product is obtained.

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Abstract

The invention discloses a preparation method of frozen diced pear unfreezing liquid and an unfreezing method. The method comprises the steps: putting the frozen diced pears into unfreezing liquid prepared from green tea extract liquid, honeysuckle flower extract liquid, chitosan, trehalose, sodium tripolyphosphate and lemon juice, and carrying out intermittent ultrasonic unfreezing in an auxiliary manner. The ultrasonic technology and the unfreezing liquid are combined for use, compared with an existing unfreezing method, the unfreezing speed of the frozen diced pears is increased, the loss rate of the unfrozen diced pears is reduced, and the method is low in cost and small in energy consumption. The unfreezing liquid contains antioxidant and antibacterial components so that the taste of the unfrozen diced pears is ensured, the browning of the diced pears is effectively inhibited, and the quality of the frozen diced pears is improved.

Description

technical field [0001] The invention relates to the technical field of fruit and vegetable processing, in particular to a method for preparing and thawing a thawing liquid for frozen pear cubes. Background technique [0002] Pear is one of the main fruits in our country, which is rich in varieties and resources, and its total output ranks first in the world. Pear fruit is rich in nutrients, such as vitamins, proteins, organic acids, fats, dietary fiber and various minerals. The sugar content is about 8%, mainly glucose, fructose and sucrose. Pear fruit is crisp, tender, juicy, sweet and sour, and is called "natural mineral water". In addition to eating fresh, pears can also be processed into pear juice, pear wine, preserved pears, canned pears, etc. [0003] Quick-freezing is a rapid low-temperature method to remove heat from fruits and vegetables, so that the liquid water in fruits and vegetables turns into solid ice, and at the same time uses low temperature to control t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/045A23B7/154
CPCA23B7/045A23B7/154A23V2002/00A23V2250/214A23V2250/21A23V2250/511A23V2250/636A23V2200/02A23V2200/10A23V2300/48
Inventor 曹雪慧庄朝月王甄妮励建荣朱丹实
Owner BOHAI UNIV
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