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Fresh-keeping treatment method for agricultural products

A technology for fresh-keeping and processing methods of agricultural products, which is applied in the field of fresh-keeping of fruits and vegetables, and can solve problems such as poor sterilization and fresh-keeping effects

Active Publication Date: 2022-02-25
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention aims at the lack of existing chlorine dioxide sterilization and preservation technology and the problem of poor sterilization and preservation effect in the prior art, and provides a chlorine dioxide sterilization and preservation treatment technology suitable for agricultural products

Method used

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  • Fresh-keeping treatment method for agricultural products
  • Fresh-keeping treatment method for agricultural products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Present embodiment scheme carries out fresh-keeping process to blueberry, and its concrete method is as follows:

[0029] 1) the NaClO of 35g 80% purity 2 Dissolve solid in 65g deionized water and make up 28% NaClO 2 solution.

[0030] 2) Prepare four 1cm x 1cm x 0.5cm absorbent pads (i.e. carriers) with plastic waterproof surfaces, and mix 0.6mL (containing about 672mgNaClO 2 ) of NaClO 2 The solution is added dropwise onto an absorbent pad.

[0031] 3) Take the absorbent pad in step 2) and paste it inside a sealable container (plastic bucket, plastic box, glass jar, etc.), put about 1kg of blueberries into the closed container, immediately put 5g of dry ice into the container, and after testing, 3 hours in the container can produce about 250-320ppm chlorine dioxide gas to treat blueberries.

[0032] 4) After processing the blueberries for 3 hours, the blueberries can be taken out from the container, and stored at 25° C. for 8 days, and the humidity during storage...

Embodiment 2

[0054] Present embodiment scheme carries out fresh-keeping treatment to grape, and its concrete method is as follows:

[0055] 1) the NaClO of 35g 80% purity 2 Dissolve solid in 65g deionized water and make up 28% NaClO 2 solution.

[0056] 2) Prepare four 1cm×1cm×0.5cm absorbent pads with a plastic waterproof surface, add 0.6mL (containing about 672mgNaClO 2 ) of NaClO 2 The solution is applied dropwise on the absorbent protective pad or on the solution absorbent pad.

[0057] 3) Take the absorbent pad in step 2) and paste it inside a sealable container (plastic barrel, plastic box, glass jar, etc.), put about 3kg of grapes into the closed container, immediately put 5g of dry ice into the container and seal the container, and keep it in the container for 3 hours It can produce about 250-320ppm chlorine dioxide gas to treat grapes.

[0058] 4) After treating the grapes for 3 hours, the grapes can be taken out from the container and stored at 8° C. for 10 days, and the hum...

Embodiment 3

[0076] Present embodiment scheme carries out fresh-keeping process to lettuce, and its concrete method is as follows:

[0077] 1) the NaClO of 35g 80% purity 2 Dissolve solid in 65g deionized water and make up 28% NaClO 2 solution.

[0078] 2) Prepare four 1cm×1cm×0.5cm absorbent pads with a plastic waterproof surface, add 0.6mL (containing about 672mg) of NaClO 2 The solution is applied dropwise on the absorbent protective pad or on the solution absorbent pad.

[0079] 3) Take the absorbent pad in step 2) and paste it inside a sealable container (plastic bucket, plastic box, glass jar, etc.), put about 500g of lettuce into the closed container, immediately put 5g of dry ice in it, seal the container, and keep it in the container for 3 hours It can produce about 250-320ppm chlorine dioxide gas to treat lettuce.

[0080] 4) After processing the lettuce for 3 hours, the lettuce can be taken out from the container and stored at 25° C. for 7 days, and the humidity during stora...

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Abstract

The invention discloses a fresh-keeping treatment method for agricultural products. The method comprises the following steps: by taking NaClO2 and dry ice as reactants, loading NaClO2 on a carrier, adding into a container, and reacting with gas generated by biochemical treatment of the dry ice in the closed container to generate chlorine dioxide gas to treat the agricultural products. According to the invention, the chlorine dioxide produced by the scheme has strong oxidizing property and permeation effect, can permeate into gaps of agricultural products and internal structures of microorganisms, and can ensure the sterilization effect on the premise of not influencing the color, texture and the like of the agricultural products; the quantity of pathogenic bacteria and putrefying bacteria of the agricultural products treated by the chlorine dioxide gas is suddenly reduced, the pathogenic bacteria and the putrefying bacteria are not easy to attach again, only trace chlorine dioxide is left on the surfaces, and the edible value of the agricultural products and human health are not influenced, so that the shelf life of the agricultural products can be prolonged, and the aim of keeping fresh is achieved; and by means of the method, treatment chambers which are different in shape and size and can be transferred at any time can be designed, high flexibility is achieved, a large generator is not needed, and cost is low.

Description

technical field [0001] The invention relates to the technical field of fresh-keeping of fruits and vegetables, in particular to a fresh-keeping treatment method for agricultural products, in particular to a method for sterilizing agricultural products with chlorine dioxide gas to achieve fresh-keeping. Background technique [0002] After the agricultural products are harvested, the agricultural products need to be selected, cleaned and bacteriostatically treated to prolong the shelf life of the agricultural products. At present, chlorine dioxide has been used as an extensive, efficient and safe fungicide at home and abroad in the fields of agricultural product cleaning and sterilization. Among them, liquid chlorine dioxide is easy to prepare, but the dosage cannot be controlled, which is very likely to cause high drug residues to pollute the environment and endanger human health. At the same time, the sterilization effect of liquid chlorine dioxide cleaning agricultural pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/152
CPCA23B7/152A23V2002/00A23V2200/10A23V2250/10
Inventor 方婷江涛李长城刘斌雄郭凤婷张茜文
Owner FUJIAN AGRI & FORESTRY UNIV
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