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Method for fresh-keeping storage of Longguan cherry

A technology for cherries and storage time, which is applied in the fields of fruit and vegetable preservation, food preservation, and preservation of fruits/vegetables through radiation/electrical treatment, etc. It can solve the problems of color and flesh oxidative deterioration, soft skin, cherry color and quality decline, etc. The effect of reducing enzyme and cell activity, preventing excessive temperature difference changes, and reducing the frostbite rate of cherries

Inactive Publication Date: 2017-12-26
HEFEI RUNYU AGRI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Longguan cherries are fresh fruits, which have a short shelf life after being picked, and if they are left for a long time, they will appear dull in color, soft in the skin, and sour in juice, which seriously affects the edible value of Longguan cherries.
The traditional storage method of cherries generally adopts low-temperature freezing and storage methods. Low-temperature freezing is to reduce the temperature in the cold storage to minus ten degrees or even lower. The freezing method reduces the activity of enzymes in cherries and inhibits the reproduction of microorganisms, thereby prolonging the storage time. The preservation time, but the low-temperature freezing method is too low, the water in the cherry will form a crystallized state, the water content in the skin will be less after the temperature rises, the color and quality of the cherry will decline, and the temperature is too low to cause frostbite of the cherry; and the storage method is generally The storage temperature is set above 0°C for preservation, and the enzymes and microorganisms in the cherries are at a low metabolic level, which can better maintain the color and taste of cherries, but the storage time is short, and cherries are prone to deterioration after long-term storage
In addition, in the traditional storage method, the cherries are in contact with the external environment, and the moisture and microorganisms in the cherries and the environment are constantly exchanged. The water content of the cherries gradually decreases, and the color and flesh quality will oxidize and deteriorate.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for fresh-keeping and storing Longguan cherries, comprising the following steps:

[0019] (1) Picking treatment: immerse the picked Longguan cherries in cold water to cool down and clean them, clean the dirt on the surface of the cherries, and reduce the metabolism level of the cherries, and then sterilize them with sodium hypochlorite solution to reduce the damage of external microorganisms to the cherries. post-picking cherries;

[0020] (2) Pre-cooling: Put the picked cherries in the pretreatment room and the temperature drops to 13°C, which can reduce the activity of various enzymes and cells in the cherries, reduce the consumption of nutrients, and prevent the temperature difference from changing too much after the cherries are stored. Frostbite and soften the flesh, store for 1.5 hours, and use ultraviolet light to sterilize, to obtain cooled cherries;

[0021] (3) Storage: Immerse the cooled cherries in glycerin for 1 minute, and bake them at 34°C for 2...

Embodiment 2

[0030] Present embodiment 2 is compared with embodiment 1, and step changes in the following aspects:

[0031] The cooling cleaning treatment described in step (1) has a temperature of 14° C. and a cleaning time of 7 minutes; the sodium hypochlorite solution has a solution mass concentration of 40 ppm and a sterilization time of 4 minutes.

[0032] For the ultraviolet light sterilization described in step (2), the light intensity is 360 lux, and the time is 28 min.

[0033] Step (2) pretreatment, the temperature is 15°C, and the time is 2h.

[0034] Step (3) storage, its method is:

[0035] Immerse the cooled cherries in glycerin for 2 minutes, bake at 35°C for 3 minutes, take them out and put them in the storage box, and add mixed oil to the storage box to a height of 4cm higher than the cherries, and put the storage box in the cold storage for cold storage For storage, first lower the temperature of the cold storage to 12°C, store for 4 hours, then lower the temperature to -...

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PUM

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Abstract

The invention discloses a method for fresh-keeping storage of Longguan cherry, and is characterized in that the method comprises the following aspects: (1) picking treatment: carrying out cleaning and sterilizing treatment with cold water and a sodium hypochlorite solution after Longguan cherry is picked; (2) pre-cooling: placing the cherry after picking in a pretreatment chamber, decreasing the temperature to 12-16 DEG C, and carrying out ultraviolet sterilization; (3) storage: sealedly storing the cherry after pretreatment by using glycerol and mixed oil, adjusting the storage temperature in a cold storage house, and carrying out cold storage treatment; (4) ex-warehouse treatment: rising the temperature of the cold storage house to 6-9 DEG C, and cleaning by absolute ethyl alcohol; and (5) packaging: carrying out sealed package. The method for fresh-keeping storage of the Longguan cherry has long preservation time, counter-season sale is achieved, and the stored Longguan cherry has high color, luster, taste and plumpness.

Description

technical field [0001] The invention belongs to the technical field of agricultural product storage, and in particular relates to a method for fresh-keeping and storing Longguan cherries. Background technique [0002] Longguan cherry has a large fruit size, with an average single fruit weight of 6.8g and a maximum single weight of 12g. The fruit shape of Longguan cherry is wide and heart-shaped, the peel is ruby ​​red, crystal bright, gorgeous and attractive, and the fruit setting rate and yield High; Longguan cherry pulp and juice are purple-red, juicy, sweet and sour, and rich in flavor. Longguan cherry is rich in sugar, citric acid, tartaric acid, carotene, vitamin C, iron, calcium, phosphorus and other ingredients, and can treat symptoms such as weak spleen and stomach, insufficient liver and kidney, sore waist and knees, and blood deficiency. The whole body can be used as medicine, and the fresh fruit has the effects of sweating, replenishing qi, dispelling wind, and c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/015A23B7/154A23B7/157A23B7/055
CPCA23B7/015A23B7/055A23B7/154A23B7/157
Inventor 吴邦柱
Owner HEFEI RUNYU AGRI TECH CO LTD