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Application of melatonin to fruit and vegetable preservation and fruit and vegetable preservation method

A technology of fruit and vegetable preservation and melatonin, applied in the direction of fruit and vegetable preservation, application, food preservation, etc., can solve the problems of fresh fruits and vegetables, such as intolerance to storage, easy to lose water, wilt, rot and deterioration, etc., to achieve inhibition of respiration rate and ethyl alcohol dilution release rate, the effect is obvious, and the effect of reducing the rate of weightlessness

Active Publication Date: 2014-06-25
白水县盛隆果业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem solved by the present invention is to provide the application of melatonin for fresh-keeping of fruits and vegetables and the fresh-keeping method, which solves the technical problem that fresh fruits and vegetables are not resistant to storage, and are easily dehydrated, wilted, softened and rotten, and the operation is simple and convenient

Method used

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  • Application of melatonin to fruit and vegetable preservation and fruit and vegetable preservation method
  • Application of melatonin to fruit and vegetable preservation and fruit and vegetable preservation method
  • Application of melatonin to fruit and vegetable preservation and fruit and vegetable preservation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Take ‘Qin Mi’ peach as an example, perform the following treatments:

[0035] 1) Choose peach fruits: Choose well-developed peach fruits without mechanical damage;

[0036] 2) Physical sterilization: The selected fresh fruits are sterilized by sodium hypochlorite, the concentration of sodium hypochlorite solution used for sterilization is 20 mL / L, the soaking treatment time is 5 minutes, and then rinsed with running water;

[0037] 3) Preparation of melatonin treatment solution: dissolve melatonin in a small amount of ethanol (subject to dissolution), then mix it with a certain proportion of water to make the concentration 0 (as a control), 50, 100, 150 , 200 and 300μmol / L melatonin treatment solution;

[0038] 4) Melatonin treatment: soak the peach fruit that has been dissipated from the field heat in the melatonin treatment solution for 10 minutes in a dark place, and then dry the fruit surface water at room temperature;

[0039] 5) Bagged storage: peach fruits with dried surf...

Embodiment 2

[0045] Taking'Qinmi' honey peach as an example, the specific operation is the same as that in Example 1. The melatonin treatment concentration of the comparative test is 100 μmol / L, and the soaking time is 0, 5, 10, 15 and 20 minutes. The storage effect after being packed in vinyl film bags and stored at room temperature (20oC) for 7 days.

[0046] The results are shown in the following table:

[0047]

[0048] This example shows that the storage effect of peach fruits treated with exogenous melatonin is significantly different at different soaking times. According to the experiment, it can be concluded that the treatment time is too low and the effect is not good. If the treatment time is too long, it will damage the fruit and promote the aging process. When the exogenous melatonin solution is soaked for 10-15 minutes, the weight loss rate and respiration rate of peach fruits are significantly lower than other treatment concentrations, and the fruit hardness is maintained high, a...

Embodiment 3

[0050] Take'Qinmi' honey peach as an example. The specific operation is the same as that in Example 1. When the melatonin treatment concentration is 100μmol / L and the soaking time is 10min, the peach fruit is packed in a low-density polyethylene film bag at 18, Storage effect after 7 days storage at 20, 22, 24, 26, 30oC at room temperature.

[0051] The results are shown in the following table:

[0052]

[0053] 24

[0054] This example shows that the storage effect of peach fruits treated with exogenous melatonin is significantly different under different storage temperatures. According to the experiment, it can be concluded that when the storage temperature is 16~24℃, the weight loss rate and respiration rate of peach fruit are significantly lower than other treatment concentrations, and high fruit hardness is maintained. Among them, the effect at 16℃ is the best. However, to control the temperature at 16°C requires more energy consumption for cooling. Combined with practical...

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Abstract

The invention discloses application of melatonin to fruit and vegetable preservation and a fruit and vegetable preservation method. After fruits and vegetables are treated by the exogenous melatonin with proper concentration, the weight loss ratios of the fruits and the vegetables can be remarkably reduced in the storage process, the respiratory rate and the ethylene release rate of fruits can be inhibited, and the basic metabolism of the fruits and the vegetables can be weakened. Therefore, high pulp hardness as well as high content of soluble solids and titratable acid of the fruits and the vegetables can be maintained. Furthermore, after the fruits and the vegetables are treated by the exogenous melatonin, the nutritional ingredient loss of the fruits and the vegetables can be remarkably reduced, and the content of ascorbic acid and total phenols of pulp can be effectively maintained.

Description

Technical field [0001] The invention belongs to the technical field of fruit and vegetable preservation, and relates to the application of melatonin for fruit and vegetable preservation and a preservation method. Background technique [0002] Fresh peaches, nectarines, plums and apricots are delicious and nutritious. They are summer fruits that consumers love. Peach, nectarine, plum and apricot are all respiration type fruits and mature in the hot and rainy season. Therefore, the respiration rate of peach, nectarine, plum and apricot increases rapidly after picking, which will cause the fruit to lose water, wilt, soften and Rotting and deterioration have severely restricted the storage, transportation and sale of peach, nectarine, plum and apricot fruits. Tomato, also known as tomato, is rich in nutrients such as lycopene, vitamins and minerals, so it is deeply loved by people. Tomato is a kind of rapid breathing berry, with high water content, fresh and tender flesh, thin and ...

Claims

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Application Information

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IPC IPC(8): A23B7/154
Inventor 高慧曹炜程妮王毕妮叶小倩闫媚芬刘小彤
Owner 白水县盛隆果业有限责任公司
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