Storage fresh keeping method for pomegranates

A technology for preservation and preservation of pomegranates, which is applied in the preservation of fruits and vegetables, food preservation, food science and other directions, can solve the problems of affecting the total sugar content and total acid content of the cortex, the damage to the peel and grain, and the reduction of commodity value, etc., and achieve stable solubility. Effect of solid content, inhibition of respiration and transpiration, and prevention of evaporation of water

Inactive Publication Date: 2017-10-24
蚌埠市涂山村富民石榴专业合作社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process of production and sales, pomegranates have problems such as perishability, short storage period, and poor taste after storage, which reduces the value of commodities. The existing storage and preservation methods include low-temperature treatment, ozone treatment, alkaline coating, high-temperature treatment, etc. Although these methods can prevent the pomegranate from spoiling and deteriorating to a certain extent, they will cause great damage to the peel and grain, and will affect the tannin content of the cortex and the soluble solid content, total sugar content and total acid content of the grain. Content, indirectly affects the flavor

Method used

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  • Storage fresh keeping method for pomegranates

Examples

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Effect test

Embodiment 1

[0015] A storage and preservation method for pomegranate, comprising the following steps:

[0016] (1) On a sunny morning, after the dew on the pomegranate skin dries up, pick the pomegranates, classify and screen the fruits, remove the fruits with diseases, insect pests and mechanical damage, and pre-cool the pomegranates that pass the screening at 0°C for 24 hours. After cooling, apply a layer of antistaling agent on the pomegranate skin. The antistaling agent is made of the following ingredients according to the mass percentage: chitosan accounts for 0.5%, sodium alginate accounts for 0.8%, sodium carboxymethylcellulose accounts for 1.1%, gelatin accounts for 1.3%, citric acid accounts for 1.5%, ethanol with a mass fraction of 90% accounts for 2.5%, and the rest is water;

[0017] (2) Dry the pomegranates coated with preservatives and pack them in kraft paper bags. There are 5 small round holes with a diameter of 5 mm on the bags. Put the packed pomegranates in wooden boxes...

Embodiment 2

[0022] A storage and preservation method for pomegranate, comprising the following steps:

[0023] (1) On a sunny morning, after the dew on the pomegranate skin dries up, pick the pomegranates, classify and screen the fruits, remove the fruits with diseases, insect pests and mechanical damage, and pre-cool the pomegranates that pass the screening at 2°C for 27 hours. After cooling, apply a layer of antistaling agent on the pomegranate skin. The antistaling agent is made of the following ingredients according to the mass percentage: chitosan accounts for 0.55%, sodium alginate accounts for 0.9%, sodium carboxymethylcellulose accounts for 1.15%, gelatin accounts for 1.4%, citric acid accounts for 2.0%, ethanol with a mass fraction of 93% accounts for 2.8%, and the remainder is water;

[0024] (2) Dry the pomegranates coated with preservatives and pack them in kraft paper bags. There are 6 small round holes with a diameter of 6 mm on the bags. Put the packed pomegranates in woode...

Embodiment 3

[0029] A storage and preservation method for pomegranate, comprising the following steps:

[0030] (1) On a sunny morning, after the dew on the pomegranate peel dries up, pick the pomegranates, classify and screen the fruits, remove the fruits with diseases, insect pests and mechanical damage, pre-cool the pomegranates that pass the screening at 5°C for 30 hours, and pre-cool them. After cooling, apply a layer of antistaling agent on the pomegranate skin. The antistaling agent is made of the following ingredients according to the mass percentage: chitosan accounts for 0.6%, sodium alginate accounts for 1.0%, sodium carboxymethylcellulose accounts for 1.2%, gelatin accounts for 1.5%, citric acid accounts for 2.5%, ethanol with a mass fraction of 95% accounts for 3.0%, and the rest is water;

[0031] (2) Dry the pomegranates coated with preservatives and pack them in kraft paper bags. There are 8 small round holes with a diameter of 8mm on the bags. Put the packed pomegranates i...

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Abstract

The invention relates to the technical field of fresh keeping of pomegranates, and discloses a storage fresh keeping method of pomegranates. The method comprises the following steps that (1) a scientific picking method is adopted so as to improve the quality of selected pomegranates, reduce the damage ratio of pomegranate fruits and do preparation work for storage fresh keeping, after precooling treatment is performed on the picked pomegranates, the respiration of skin cells can be reduced, the content of tannin is controlled to be in a stable range and cannot have tremendous fluctuation along with the lapse of time so that peel is prevented from having brown stains, after precooling treatment, a layer of fresh keeping agents is applied to the skin, on one hand, the growth and the propagation of pathogenic bacteria can be restrained, on the other hand, the content of soluble solid matters in pomegranate seeds can be stabilized, and breath and transpiration can be restrained; and (2) the pomegranates on which the fresh keeping agents are applied are packaged with kraft paper to prevent moisture from evaporating, the packaged pomegranates are placed in a wooden box for storage to maintain the initial flavor of the pomegranates, and mixed gas is led into the wooden box to improve the effect of the fresh keeping agents for reducing the respiratory metabolism of the pomegranates and restrain the formation of hazardous substances such as acetic aldehyde and ethanol.

Description

technical field [0001] The invention belongs to the field of pomegranate fresh-keeping technology, and in particular relates to a pomegranate storage and fresh-keeping method. Background technique [0002] Pomegranate is a rare fruit of Jiuzhou, which contains a lot of amino acids, vitamins and various trace elements. Tang "Historical Books" records: Empress Wu Zetian once issued an imperial decree, sealing pomegranates as "beauties with many seeds". Pomegranate fruit is like red gemstones. The fruit is sweet, sour, juicy, and has high nutritional value. It is rich in fruit sugar, high-quality protein, and easy to absorb fat. It can supplement human energy and calories without increasing the burden on the body. . Pomegranate is rich in vitamins, especially B and C, and trace mineral elements, which can supplement the trace elements and nutrients that the human body lacks. Pomegranate is also rich in various acids, including organic acids and folic acid, which have health ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/148A23B7/154
CPCA23B7/154A23B7/148
Inventor 王传龙
Owner 蚌埠市涂山村富民石榴专业合作社
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