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Composite fresh keeping agent and fresh keeping method for cucumbers

A technology of composite preservation and preservation methods, applied in the direction of protecting fruits/vegetables with a coating protective layer, can solve the problems of perishability, short storage time, easy to be damaged by low temperature, etc. Good effect, solve the effect of water loss

Pending Publication Date: 2019-04-12
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of short post-harvest storage time, easy to rot, and easy to be damaged by low temperature in the prior art, and provide a cucumber composite preservative and fresh-keeping method. The technology is convenient and simple to operate, low in cost, and economically valuable. High, and the raw materials used are natural, non-toxic, non-polluting, and harmless to human health

Method used

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  • Composite fresh keeping agent and fresh keeping method for cucumbers
  • Composite fresh keeping agent and fresh keeping method for cucumbers
  • Composite fresh keeping agent and fresh keeping method for cucumbers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of cucumber composite antistaling agent and fresh-keeping method, the steps are as follows:

[0025] (1) selection: select the cucumber fruit with the same size and maturity, uniform coloring, no damage by diseases and insect pests, and no mechanical damage;

[0026] (2) remove the sticky sundries and soil of the cucumber of step (1) gained;

[0027] (3) Preparation of coating solution: 2.0% chitosan, 0.5% sodium carboxymethylcellulose, 0.6% citric acid, 0.8% konjac glucomannan and water are mixed according to the mass fraction of 100%. Homogenization should be carried out during mixing, the time is 5min, and the homogenization speed is 4000r / min;

[0028] (4) Coating: put the cucumber obtained in step (2) into the coating liquid obtained in step (3) for dip coating, the temperature of the coating liquid is 10° C., and the dipping time is 2 min;

[0029] (5) Drying: pull out the dip-coated cucumber obtained in step (4), drain the dip-coating solution, and dry a...

Embodiment 2

[0032] A kind of cucumber composite antistaling agent and fresh-keeping method, the steps are as follows:

[0033] (1) selection: select the cucumber fruit with the same size and maturity, uniform coloring, no damage by diseases and insect pests, and no mechanical damage;

[0034] (2) remove the sticky sundries and soil of the cucumber of step (1) gained;

[0035] (3) Preparation of coating solution: 1.5% chitosan, 1.0% sodium carboxymethylcellulose, 0.4% citric acid, 0.6% konjac glucomannan and water are mixed according to the mass fraction of 100%. Homogenization should be carried out during mixing, the time is 5min, and the homogenization speed is 4000r / min;

[0036] (4) Coating: put the cucumber obtained in step (2) into the coating liquid obtained in step (3) for dip coating, the temperature of the coating liquid is 10° C., and the dipping time is 2 min;

[0037] (5) Drying: pull out the dip-coated cucumber obtained in step (4), drain the dip-coating solution, and dry a...

Embodiment 3

[0040] A kind of cucumber composite antistaling agent and fresh-keeping method, the steps are as follows:

[0041] (1) selection: select the cucumber fruit with the same size and maturity, uniform coloring, no damage by diseases and insect pests, and no mechanical damage;

[0042] (2) remove the sticky sundries and soil of the cucumber of step (1) gained;

[0043] (3) Preparation of coating solution: 1.0% chitosan, 1.5% sodium carboxymethylcellulose, 0.2% citric acid, 0.4% konjac glucomannan and water are mixed according to the mass fraction of 100%. Homogenization should be carried out during mixing, the time is 5min, and the homogenization speed is 4000r / min;

[0044] (4) Coating: put the cucumber obtained in step (2) into the coating liquid obtained in step (3) for dip coating, the temperature of the coating liquid is 10° C., and the dipping time is 2 min;

[0045] (5) Drying: pull out the dip-coated cucumber obtained in step (4), drain the dip-coating solution, and dry a...

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Abstract

The invention relates to a composite fresh keeping agent and fresh keeping method for cucumbers. A fresh keeping agent for fruits and vegetables is self-made. The fresh keeping agent comprises the following components in percentage by weight: 0.8-2.4% of chitosan, 0.4-1.6% of sodium carboxymethyl cellulose, 0.1-0.8% of citric acid, 0.3-1.0% of konjac glucomannan and water. The fresh keeping methodcomprises the following steps of firstly selecting cucumber fruits which are consistent in size and maturity, uniform in color, free from diseases and insect pests and free from mechanical damage, removing impurities from the skin of the selected cucumber fruits, soaking the cucumber fruits after impurity removal in the fresh keeping agent, performing airing at room temperature, putting the airedcucumber fruits in a fresh keeping box of 12-15 DEG C, and performing storage for 15d. Through the adoption of the method, the quality of the cucumbers can be well maintained, the fresh keeping effect is good, and the problems of moisture dissipation, nutrient loss, putridity and deterioration, ageing and the like can be effectively solved. The fresh keeping agent is natural, non-toxic, pollution-free, healthy and harmless to human bodies, simple in provided technical operations, low in cost, and high in economic value, and has favorable application prospects.

Description

technical field [0001] The invention relates to a cucumber composite fresh-keeping agent and a fresh-keeping method, belonging to the technical field of fruit and vegetable fresh-keeping. Background technique [0002] Cucumber is cool in nature and sweet in taste. It enters the lungs, stomach and large intestine. It has the effects of clearing heat and diuresis, detoxifying and reducing swelling, promoting body fluid and quenching thirst. Indications for body heat and polydipsia, sore throat, wind-heat eye disease, damp-heat jaundice and other diseases. The cucurbitacin C contained in cucumber has the function of improving human immunity and achieving the purpose of anti-tumor. In addition, it can prolong the survival time of patients with primary liver cancer. Its rich vitamin E can anti-aging, rub the skin with cucumber juice, which has the effect of moisturizing and stretching wrinkles; the alanine, arginine and glutamine contained in it can prevent and treat alcoholism;...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/16
CPCA23B7/16
Inventor 张秀玲张黎邵美丽张雪婷陈志红徐渐许岩
Owner NORTHEAST AGRICULTURAL UNIVERSITY