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Biological preservation method for blueberry fruits

A biological fresh-keeping and fruit technology, applied in the fields of fruit and vegetable fresh-keeping, food science, food preservation, etc., can solve the problems of unclear storage and disease resistance effect of blueberries, reduce respiration rate, endanger human health, etc. Effects of infestation, reduction of respiration intensity, reduction of field heat

Active Publication Date: 2015-04-22
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Low temperature preservation can extend the storage period of blueberries to a certain extent, but to achieve longer storage and transportation must be supplemented by other means
②Modified atmosphere preservation: Zheng Yonghua [2] The study found that high concentrations of O 2 Can significantly inhibit the respiration rate and ethylene release rate of blueberry fruit, delaying fruit senescence; Schotsmans et al. [3] Using 2.5kPa O 2 +15kPa CO 2 The controlled atmosphere conditions can prolong the storage life of rabbit eye blueberries for more than two weeks, but these are artificial controlled atmosphere preservation methods, and a certain proportion of gas needs to be filled in the storage process, resulting in higher costs
③ Chemical preservation: Wang et al. [4] Using allyl isothiocyanate (AITC) to carry out experiments on blueberries, the results show that AITC treatment at 10°C can effectively delay the rot of blueberry fruits; some scholars also use 1-methylcyclopropene (1-MCP) to inhibit The synthesis of ethylene reduces the respiratory rate, maintains the quality of the fruit, and alleviates its physiological diseases. However, the storage and preservation of chemical agents can easily cause toxic residues, endangering human health, and the chemical control technology is facing severe challenges.
However, there is no report on the application of MeJA to blueberry fruits. Due to the huge differences in the physiological characteristics of various fruits, the effect of MeJA on the storage and disease resistance of blueberries is not clear.

Method used

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  • Biological preservation method for blueberry fruits
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  • Biological preservation method for blueberry fruits

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A kind of biological fresh-keeping method of blueberry fruit is carried out according to the following steps:

[0039] (1) Picking and selection of stored fruits: select blueberry fruits with uniform size, relatively consistent maturity (8-9 maturity), no rot, no pests and diseases, and no mechanical damage;

[0040] (2) Pre-cooling treatment of stored fruit: put the selected blueberry fruit into the cold storage, the temperature of the cold storage is 2°C, pre-cooling treatment for 12 hours, the center temperature of the blueberry fruit is about 5°C;

[0041] (3) MeJA fumigation treatment: put the blueberry fruit after the above-mentioned precooling treatment into a sealed PET plastic box container with a box body thickness of 0.2 mm, add methyl jasmonate solution, and conduct airtight fumigation treatment for 6 hours to make the first jasmonate in the container The fumigation concentration of the ester reaches 20μmol / L, and the ratio of the container fruit volume to t...

Embodiment 2

[0054] A kind of biological fresh-keeping method of blueberry fruit is carried out according to the following steps:

[0055] (1) Picking and selection of stored fruits: select blueberry fruits with uniform size, relatively consistent maturity (8-9 maturity), no rot, no pests and diseases, and no mechanical damage;

[0056] (2) Pre-cooling treatment of stored fruit: put the selected blueberry fruit into the cold storage, the temperature of the cold storage is 5°C, and the pre-cooling treatment is 24 hours, and the center temperature of the blueberry fruit is about 4°C;

[0057] (3) MeJA fumigation treatment: Put the blueberry fruit after the above-mentioned pre-cooling treatment into a sealed PET plastic box container with a box body thickness of 0.4mm, add methyl jasmonate solution, and conduct airtight fumigation treatment for 8 hours to make the methyl jasmonate in the container The fumigation concentration reaches 10μmol / L, and the ratio of container fruit volume to contai...

Embodiment 3

[0061] A kind of biological fresh-keeping method of blueberry fruit is carried out according to the following steps:

[0062] (1) Picking and selection of stored fruits: select blueberry fruits with uniform size, relatively consistent maturity (8-9 maturity), no rot, no pests and diseases, and no mechanical damage;

[0063] (2) Pre-cooling treatment of stored fruit: put the selected blueberry fruit into the cold storage, the temperature of the cold storage is 4°C, and the pre-cooling treatment is 18 hours, and the center temperature of the blueberry fruit is about 4°C;

[0064] (3) MeJA fumigation treatment: Put the blueberry fruit after the above pre-cooling treatment into a sealed PET plastic box container with a box thickness of 0.3mm, add methyl jasmonate solution, and conduct airtight fumigation treatment for 7 hours to make the methyl jasmonate in the container The fumigation concentration reaches 15μmol / L, and the ratio of container fruit volume to container volume is l...

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PUM

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Abstract

The invention relates to the field of fruit and vegetable preservation and in particular relates to a biological preservation method for blueberry fruits. The method mainly comprises the steps of fumigating pre-cooled blueberries by jasmonic acid methyl ester. The method can be used for improving the resistance of the blueberry fruits, effectively preventing the rot of the fruits and prolonging the storage period of the fruits, is safe and efficient, and meets the food safety requirements; moreover, the blueberry fruits do not contain any preservative or chemical residues.

Description

technical field [0001] The invention relates to the field of fresh-keeping of fruits and vegetables, in particular to a biological fresh-keeping method of blueberry fruit. Background technique [0002] Blueberry (blueberry), also known as lingonberry, belongs to the genus Vaccinium of Rhododendronaceae. It is native to North America and is one of the emerging small berries in China. Blueberry fruit is suitable for sweet and sour, with unique flavor and rich nutrition. It has health care functions such as preventing brain aging, anti-cancer, enhancing body immunity and improving eyesight. one. Blueberry fruits generally ripen in summer, when the field heat and respiratory heat are high, the respiration of postharvest fruits is strengthened, and various physiological metabolisms are accelerated, which makes blueberry fruits extremely intolerant to storage, and the storage period at 20°C is only about 1 week. Post-harvest blueberry quality decline is mainly manifested in frui...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23B7/00A23B7/152A23B7/04
CPCY02P60/85
Inventor 陈杭君郜海燕穆宏磊周拥军陶菲房祥军葛林梅许晴晴
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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