Application of melatonin in fresh-keeping of fruits and vegetables and fresh-keeping method

A fruit and vegetable preservation and melatonin technology, which is applied in the directions of fruit and vegetable preservation, application, food preservation, etc., can solve the problems of intolerant storage of fresh fruits and vegetables, easy to lose water and wilt, rot and deteriorate, and achieves inhibition of respiration rate and B dilution. The discharge rate, the effect is obvious, the effect of reducing the weight loss rate

Active Publication Date: 2015-08-12
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 in fresh-keeping of fruits and vegetables and fresh-keeping method
  • Application of melatonin in fresh-keeping of fruits and vegetables and fresh-keeping method
  • Application of melatonin in fresh-keeping of fruits and vegetables and fresh-keeping method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Take the 'Qin Mi' peach as an example, the following processing is carried out:

[0035] 1) Select peach fruit: select well-developed peach fruit without mechanical damage;

[0036] 2) Physical sterilization: Sterilize the selected fresh fruits with sodium hypochlorite, the concentration of sodium hypochlorite solution used for sterilization is 20mL / L, the soaking time is 5min, and then rinse with running water;

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

[0038] 4) Melatonin treatment: Soak the peach fruits that have dissipated the field heat in the melatonin treatment solution for 10 minutes in the dark, and then dry the surface moisture of the fruit at room temperature;

[0039] 5) Storage in bags: Put the dried peach fruits in...

Embodiment 2

[0045] Taking 'Qin Mi' peaches as an example, the specific operation was the same as in Example 1. In the comparative test, the melatonin treatment concentration was 100 μmol / L, and when the soaking time was 0, 5, 10, 15 and 20 minutes, the peach fruit was treated with low-density polymerization. The storage effect after 7 days storage at room temperature (20oC) after packaging in vinyl film bags.

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

[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 if the treatment time is too low, the effect is not good, and if the treatment time is too long, it will damage the fruit and accelerate the aging process. When the soaking time of exogenous melatonin solution was 10-15 minutes, the weight loss rate and respiration rate of peach fruit were significantly lower than ...

Embodiment 3

[0050] Taking 'Qin Mi' peach as an example, the specific operation is the same as in Example 1. In the comparative test, the melatonin treatment concentration was 100 μmol / L, and when the soaking time was 10 min, the peach fruit was packed in a low-density polyethylene film packaging bag at 18, Storage effect after 7 days storage at room temperature at 20, 22, 24, 26, 30oC.

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

[0052]

[0053] 24

[0054] This example shows that: at different storage temperatures, the storage effects of peach fruits treated with exogenous melatonin are significantly different. According to the experiment, it can be concluded that when the storage temperature is 16-24°C, the weight loss rate and respiration rate of peach fruit are significantly lower than other treatments, and maintain high fruit firmness, among which the effect is the best at 16°C. However, controlling the temperature at 16°C requires more energy consumption for co...

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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 fresh-keeping of fruits and vegetables, and relates to the application of melatonin for fresh-keeping of fruits and vegetables and a fresh-keeping method. Background technique [0002] Fresh peaches, nectarines, plums and apricots are delicious and nutritious, and are very popular summer fruits for consumers. Peaches, nectarines, plums, and apricots are all respiratory climacteric fruits, and they ripen in hot and rainy seasons. Therefore, the respiratory rate of peaches, nectarines, plums, and apricots increases rapidly after picking, which leads to dehydration, wilting, softening and Rot and deterioration seriously restrict the storage, transportation and sales of peaches, nectarines, plums and apricots. Tomatoes, also known as tomatoes, are rich in nutrients such as lycopene, vitamins and minerals, so they are very popular among people. Tomato is a climacteric berry with high moisture content, fresh ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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