Method for keeping peaches fresh

A fresh-keeping method and a fresh-keeping film technology are applied in the directions of fruit and vegetable fresh-keeping, food preservation, and fruit/vegetable preservation through freezing/refrigeration, which can solve the problems such as not being completely solved, loss of flavor, browning, etc., and are convenient for promotion and use. The effect of long shelf life and easy operation

Active Publication Date: 2010-04-21
TIANJIN AGRICULTURE COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, problems such as peach softening, browning, chilling damage, r

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of fresh-keeping method of peach, is made up of following steps:

[0019] (1) picking 7~8 ripe peaches with fruit stalks and no damage; be 1.8% CaCl with mass concentration 2 Soak in the aqueous solution for 4 minutes, fully drain the water, and put it into an open plastic basket with holes on five sides;

[0020] (2) At 23°C, smoke for 18 hours with the vaporized gas of 8mol / L 1-methylcyclopropene aqueous solution;

[0021] (3) the peach after step (2) is processed is packed in the thick polyvinyl chloride film bag of 0.05mm, then polyvinyl chloride film is put into outer packing box, described polyvinyl chloride film and Open the outer box and cool down to 8°C, take 20 hours to drop the temperature to 6°C, take another 24 hours to drop the temperature to 3°C, take another 24 hours to drop the temperature to -0.5°C, and keep it for 20 hours;

[0022] (4) Put the antiseptic and preservative for fruits and vegetables in the plastic wrap bag, tie the mouth of the...

Embodiment 2

[0025] A kind of fresh-keeping method of peach, is made up of following steps:

[0026] (1) picking 7~8 ripe peaches with fruit stalks and no damage; be 1.8% CaCl with mass concentration 2 Soak in the aqueous solution for 4 minutes, fully drain the water, and put it into an open plastic basket with holes on five sides;

[0027] (2) At 24°C, smoke for 18 hours with the vaporized gas of 8mol / L 1-methylcyclopropene aqueous solution;

[0028] (3) the peach after step (2) is processed is packed in the polyvinyl chloride preservative film bag of 0.04mm thick, then polyvinyl chloride preservative film is put into outer packing box, described polyvinyl chloride preservative film and Open the outer packing case and cool down to 7°C, take 18 hours to drop the temperature to 5°C, take another 24 hours to drop the temperature to 2°C, take another 24 hours to drop the temperature to -0.5°C, and keep it for 12 hours.

[0029] (4) Put the fruit and vegetable antiseptic preservative in the ...

Embodiment 3

[0032] A kind of fresh-keeping method of peach, is made up of following steps:

[0033] (1) picking 7~8 ripe peaches with fruit stalks and no damage; be 1.8% CaCl with mass concentration 2 Soak in the aqueous solution for 4 minutes, fully drain the water, and put it into an open plastic basket with holes on five sides;

[0034] (2) At 23°C, smoke for 18 hours with the vaporized gas of 8mol / L 1-methylcyclopropene aqueous solution;

[0035] (3) the peach after step (2) is processed is packed in the thick polyvinyl chloride film bag of 0.05mm, then polyvinyl chloride film is put into outer packing box, described polyvinyl chloride film and Open the outer box and cool down to 9°C, take 24 hours to drop the temperature to 7°C, take another 24 hours to drop the temperature to 4°C, take another 24 hours to drop the temperature to -1.0°C, and keep it for 24 hours;

[0036] (4) Put the antiseptic and preservative for fruits and vegetables in the plastic wrap bag, tie the mouth of the...

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PUM

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Abstract

The invention discloses a method for keeping peaches fresh, which comprises the following steps of: (1) picking peaches, soaking the peaches in aqueous solution of CaCl2, draining water on the peaches and putting the peaches in a plastic basket; (2) fumigating the peaches by 1-methylcyclopropene gas for 16 to 20 hours; (3) putting the peaches in polyvinyl chloride preservative film bags, placing the polyvinyl chloride preservative films in an external packing box, cooling the open external packing box to 7 to 9 DEG C, gradually lowering the temperature to -0.5 to -1.0 DEG C within 60 to 72 hours and keeping the temperature for 12 to 24 hours; (4) adding fruit and vegetable antiseptic and fresh-keeping agent to the external packing box, sealing the polyvinyl chloride preservative film bags, enclosing the external packing box and storing the peaches in a storehouse at a temperature of -0.5 to -1.0 DEG C for 40 to 90 days; and (5) rising the temperature to 5 to 10 DEG C before removing the external packing box from the storehouse, keeping the temperature for 12 to 24 hours and delivering the external packing box from the storehouse after rising the temperature to a normal temperature. The method of the invention prolongs the freshness date of the peaches and achieves high storage quality. Moreover, the method is easy, convenient for popularization and suitable for large scale production and use.

Description

technical field [0001] The invention belongs to the technical field of fresh-keeping of agricultural products, and relates to a fresh-keeping method of peaches. Background technique [0002] Peach is a fruit with rich nutrition and delicious taste, which is deeply loved by people. my country is the origin and big producer of peaches, with the planting area and output ranking first in the world. Because the peach skin is thin and juicy, the harvesting period is mostly concentrated in the high temperature season, which seriously affects the storage and preservation effect of peaches. Peach fruit tends to soften and rot under normal temperature; under low temperature, it is susceptible to chilling damage, browning, and loss of flavor, resulting in restrictions on the production, storage, transportation, and sales of peaches, which affects the enthusiasm of the majority of fruit farmers to plant peach trees. At present, many researchers are also paying attention to the storage...

Claims

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Application Information

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IPC IPC(8): A23B7/157A23B7/152A23B7/04
Inventor 闫师杰梁丽雅刘铁玲孙贵宝何庆峰马照春
Owner TIANJIN AGRICULTURE COLLEGE
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