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Fresh keeping method of Zhongtian large haws

A fresh-keeping method, the technology of big hawthorn, is applied in the preservation of fruits and vegetables, the preservation of food ingredients as antimicrobials, the preservation of food, etc., can solve the problems of poor reliability and effect, high technical cost, limited fresh-keeping effect, etc. The effect of speed, anti-aging, maintenance of physiological quality and appearance

Pending Publication Date: 2020-07-10
HEZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although low-temperature storage and preservation are simple in operation and low in cost, their reliability and effect are relatively poor; technologies such as controlled atmosphere preservation, radiation storage and preservation, electrostatic field preservation, ozone and negative oxygen ion preservation have high cost, large investment, and limited preservation effect. ; while chemical preservatives are more used on fruits

Method used

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  • Fresh keeping method of Zhongtian large haws
  • Fresh keeping method of Zhongtian large haws
  • Fresh keeping method of Zhongtian large haws

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Preparation of chitosan coating solution:

[0026] Take 100g of chitosan, under the condition of 60 ℃, pour 1kg of distilled water and stir to dissolve, then add non-toxic 1% acetic acid as cosolvent and stir until dissolved, and prepare a chitosan coating solution with a mass fraction of 2.0%, and set aside .

[0027] Fresh-keeping treatment of Zhongtian Hawthorn:

[0028] Select 100Kg of Zhongtian Hawthorn with intact skin, regular appearance, no pests and diseases, and the same size, and divide it into 10 parts on average. Soak in 7mg / L, 8mg / L, 9mg / L, 10mg / L ozone water for 10min, and the follow-up treatment conditions are the same, that is, wash with water; then soak in 60℃ hot water for 60s, and dry the heat-treated hawthorn naturally; then Place the air-dried hawthorn in an environment of 4°C for 5 hours; use 2.0% chitosan, 1.5% CaCl 2 , 1.0% glycerin prepared chitosan composite coating solution soaked for 5min, repeated 2 times, and dried naturally after treat...

Embodiment 2

[0032] Preparation of chitosan coating solution:

[0033] Take 100g of chitosan, under the condition of 60 ℃, pour 1kg of distilled water and stir to dissolve, then add non-toxic 1% acetic acid as cosolvent and stir until dissolved, and prepare a chitosan coating solution with a mass fraction of 2.0%, and set aside .

[0034] Fresh-keeping treatment of Zhongtian Hawthorn:

[0035] Select 90Kg of Zhongtian hawthorn with intact skin, regular shape, no pests and diseases, and the same size, and divide it into 9 parts on average, soak each part in 5mg / L ozone water for 10min, and then wash with water; then put each part in 40℃, 45℃ , 50°C, 60°C, 65°C, 70°C, 80°C, 85°C, 90°C in hot water for 60 seconds, and other follow-up processes are the same, that is, the heat-treated hawthorn is naturally air-dried; then the air-dried hawthorn is placed in Cool in an environment of 4°C for 5h; use 2.0% chitosan, 1.5% CaCl 2 , 1.0% glycerin prepared chitosan composite coating solution soaked...

Embodiment 3

[0039] Preparation of chitosan coating solution:

[0040]Take 100g of chitosan, under the condition of 60 ℃, pour 1kg of distilled water and stir to dissolve, then add non-toxic 1% acetic acid as cosolvent and stir until dissolved, and prepare a chitosan coating solution with a mass fraction of 2.0%, and set aside .

[0041] Fresh-keeping treatment of Zhongtian Hawthorn:

[0042] Select 50Kg of Zhongtian hawthorn with intact skin, regular shape, no pests and diseases, and the same size, and divide it into 5 parts on average. Soak Zhongtian big hawthorn in 5mg / L ozone water for 10min, then wash it with clean water; put each part of Zhongtian big hawthorn separately Soak in hot water at 65°C for 60s, 120s, 180s, 240s, 300s, and the subsequent treatment process is the same, that is, the heat-treated hawthorns are naturally air-dried; then the air-dried hawthorns are cooled in an environment of 4°C for 5 hours; % Chitosan, 1.5% CaCl 2 , 1.0% glycerin and chitosan composite coat...

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Abstract

The invention relates to a fresh keeping method of Zhongtian large haws. A specific method comprises the steps of pre-sterilizing harvested Zhongtiuan large haws which are intact in outer cover and regular in shape with ozone water, performing heat treatment on whole fruits, performing precooling, performing soaking with chitosan composite film coating liquid, performing packaging with polyethylene films, and performing storage so as to obtain fresh keeping haws. The fresh keeping method disclosed by the invention can achieve the purposes of restraining ethylene generation rate of fruits and delaying fruit ageing, and can effectively maintain the physiologic quality and the appearance of the fruits, the storage period of the fruits can achieve 4 months under the preservation condition of 4DEG C, and present production and living requirements of people are basically met.

Description

technical field [0001] The invention relates to a fresh-keeping method for fruits, in particular to a fresh-keeping method for Zhongtian hawthorn. Background technique [0002] my country's hawthorn is rich in resources, which can be divided into southern hawthorn and northern hawthorn. Among them, southern hawthorn has less artificial planting area, low yield, small fruit, many stone cells, many tannins, heavy astringent taste, and hard fruit, so it cannot be eaten directly. Zhongtian Hawthorn is a new hawthorn variety selected by Professor Pan Zhongtian of Guangxi Hezhou University for 20 years from the wild hawthorn in the south. It has been registered by the Agriculture Department of Guangxi Zhuang Autonomous Region. The registration number of the "Guangxi Crop Variety Registration Certificate" is (Gui) Board (drug) No. 2008022. The main characteristics of Zhongtian Hawthorn: First, early fruiting and high yield. Generally, this variety can be put into production in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/00A23B7/005A23B7/02A23B7/04A23B7/157A23B7/16A23B7/159
CPCA23B7/00A23B7/005A23B7/02A23B7/04A23B7/157A23B7/16A23B7/159A23V2002/00A23V2200/10A23V2250/128A23V2250/511
Inventor 何忠伟何彩梅吴桂容陈春岚潘中田
Owner HEZHOU UNIV
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