Coating emulsion for keeping fruits fresh and preparation method of coating emulsion

A technology for coating emulsions and fruits, applied in the direction of protecting fruits/vegetables with a coating protective layer, can solve the problems of complicated production process of antibacterial fresh-keeping film/paper, loss of antibacterial components of Chinese herbal medicines, and high performance requirements of preservatives, etc. Preservation time, effective bacteriostasis, and the effect of maintaining stability

Active Publication Date: 2015-06-24
HAINAN BNK WATER BASED NEW MATERIAL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process of this antibacterial plastic wrap / paper is complicated, it has high requirements on the performance of the preservative, and it is expensive, so it is only suitable for packaging high-end fruit products
When using Chinese herbal medicine as an antibacterial substance, it needs to be purified repeatedly to obtain the reagent. However, during the purification process, a large amount of antibacterial components in the Chinese herbal medicine will be lost due to high temperature or solvent treatment, resulting in a greatly reduced effect.

Method used

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  • Coating emulsion for keeping fruits fresh and preparation method of coating emulsion
  • Coating emulsion for keeping fruits fresh and preparation method of coating emulsion
  • Coating emulsion for keeping fruits fresh and preparation method of coating emulsion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1. Take 7.2 kilograms of Stemone, 4.68 kilograms of sweet tea, 6.84 kilograms of dried aloe, 1.8 kilograms of horseradish, 8.28 kilograms of ginger, and 7.2 kilograms of Chinese prickly ash, crush them to 800 mesh with a grinder, and mix them to make 36 kilograms of Chinese herbal medicine powder;

[0029] 2. Take 46 kg of acrylic emulsion and place it in a stainless steel container, turn on the mixer, set the stirring speed to 300 rpm, and slowly add the prepared Chinese herbal medicine powder, 6 kg of dispersant, and 12 kg of mannan, and stir. After 2 hours, turn off the stirring device. Filter to obtain 100 kg of film coating emulsion;

[0030] 3. Carry out coating test on 21 micron PET substrate, the coating amount is 1.5g / m 2 After the machine is cured, the bananas are packaged and stored in an environment with a temperature of 20℃ and a humidity of 40%RH, and the storage time when the good fruit rate is not less than 85% (the good fruit rate is not less than 85% ) Is ...

Embodiment 2

[0032] 1. Take 5.04 kg of Stemone, 4.76 kg of sweet tea, 5.6 kg of dried aloe vera, 1.12 kg of horseradish, 5.32 kg of galangal, and 6.16 kg of Chinese pepper, pulverize to 800 mesh with a grinder, and mix evenly to make 28 kg of Chinese herbal powder;

[0033] 2. Take 55 kg of acrylic emulsion in a stainless steel container, turn on the mixer, set the stirring speed to 350 rpm, slowly add 28 kg of Chinese herbal medicine powder, 6 kg of dispersant, and 11 kg of mannan, stir 2.2 After hours, turn off the stirring device. Filter to obtain 100 kg of film coating emulsion;

[0034] 4. The coating test was carried out on the BOPP substrate of 19 microns, and the coating amount was 1.0g / m 2 After the machine is cured, the mango is packaged and stored in an environment with a temperature of 23℃ and a humidity of 65%RH, and the storage time when the good fruit rate is not less than 85% (the good fruit rate is not less than 85% ) Is 20 days.

Embodiment 3

[0036] 1. Take 5.7 kilograms of Stemona, 3.9 kilograms of sweet tea, 5.4 kilograms of dried aloe vera, 2.1 kilograms of horseradish, 6 kilograms of ginger, and 6.9 kilograms of Chinese prickly ash, crush them to 800 mesh with a grinder, and mix them to make 30 kilograms of Chinese herbal powder;

[0037] 2. Take 52 kg of acrylic emulsion into a stainless steel container, turn on the mixer, set the stirring speed to 500 rpm, slowly add 30 kg of Chinese herbal medicine powder, 8 kg of dispersant, and 10 kg of mannan, stir 3 After hours, turn off the stirring device. Filter to obtain 100 kg of film coating emulsion;

[0038] 5. The coating test was carried out on a 21-micron BOPP substrate, and the coating amount was 2.5g / m 2 After the machine is cured, the two fruits, grapes and lychees, are packaged and stored in an environment with a temperature of 25°C and a humidity of 50%RH. The storage time when the good fruit rate is not less than 85% (good fruit The rate is not less than 85%...

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Abstract

The invention relates to coating emulsion for keeping fruits fresh. The coating emulsion comprises raw materials including, by weight, 46-55 parts of acrylic emulsion, 28-36 parts of Chinese herbal medicine powder, 7-12 parts of mannan and 6-8 parts of dispersing agents. Raw materials of the Chinese herbal medicine powder include, by weight ratio, 18-20% of radix stemonae, 13-17% of sweet tea, 18-20% of dry aloe, 4-8% of horseradish, 19-27% of galangal and 20-23% of wild pepper. The invention further relates to a preparation method of the coating emulsion for keeping the fruits fresh. The coating emulsion for keeping the fruits fresh can be used for coating packaging materials such as films and paper. The preparation method of the coating emulsion for keeping the fruits fresh is simple, low in cost and fine in functional effect. The prepared emulsion is conducive to interchange of a large number of Chinese northern and southern fruits, so that types of fruits in various regions are enriched.

Description

Technical field [0001] The invention relates to a coating emulsion for fruit preservation and a preparation method thereof, and belongs to the field of new polymer materials. Background technique [0002] Fruits are easy to change color, soften or rot after being picked. Choosing suitable fresh-keeping packaging materials can effectively extend their storage time and facilitate transportation and sales. Among the fresh-keeping packaging materials, cling paper and cling film are widely used. However, the cling film has good transparency, moisture retention, and airtightness, and its gas permeability can also meet the conditions of controlled atmosphere storage, which is more popular with consumers. Currently on the market, antibacterial cling film and antibacterial cling paper are the most effective for fruit preservation. The principle is that safe and effective antibacterial substances are added to the film / paper during the film or paper making process so that it can pass antiba...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23B7/16
Inventor 黄宏存宋军军
Owner HAINAN BNK WATER BASED NEW MATERIAL CO LTD
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