A kind of Luo Han Guo fresh-keeping coating liquid and preparation method thereof

A technology of coating liquid and mangosteen, which is applied in the direction of protecting fruits/vegetables with a coating protective layer, can solve the problems of easy generation of cold-resistant pathogens, deterioration and rot of mangosteen, and high refrigeration cost, so as to reduce the cost of preservation and inhibit growth , the effect of preventing rot

Inactive Publication Date: 2015-10-07
GUANGXI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Luo Han Guo is a tropical fruit mainly produced in Guangxi. If no fresh-keeping treatment is carried out during transportation or storage to the north after picking, it is very easy to cause rapid deterioration and rot of Luo Han Guo due to breathing or residual harmful bacteria on the surface.
Most of the existing fresh-keeping methods are refrigeration, but the cost of refrigeration is high, and it is easy to produce cold-resistant pathogenic bacteria

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Dissolve 70g of shellac with 100ml of ethanol at 40°C, then add 1g of monoglyceride, 0.01g of tea saponin, 0.05g of penthiopyrad and 0.05g of α-aminoisobutyric acid in sequence, and stir After it is completely dissolved, add 3g of sodium carbonate, and finally dilute to 1000g with water to obtain the Luo Han Guo fresh-keeping coating solution. Put the grosvenor fruit into the grosvenor fruit fresh-keeping coating solution, dip coating, and dry in air to obtain a layer of film on the surface of the grosvenor fruit.

Embodiment 2

[0013] Dissolve 90g of shellac with 150ml of ethanol at 40°C, then add 1.5g of monoglyceride, 0.03g of tea saponin, 0.02g of penthiopyrad and 0.1g of α-aminoisobutyric acid, Stir until completely dissolved, then add 5g of sodium carbonate, and finally dilute to 1000g with water to obtain the Luo Han Guo fresh-keeping coating solution.

Embodiment 3

[0015] Dissolve 100g of shellac with 200ml of ethanol at 30°C, then add 2g of monoglyceride, 0.04g of tea saponin, 0.01g of penthiopyrad and 0.01g of α-aminoisobutyric acid in sequence, and stir After it is completely dissolved, add 4g of sodium carbonate, and finally dilute to 1000g with water to obtain the Luo Han Guo fresh-keeping coating solution.

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PUM

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Abstract

The invention discloses a Siraitia grosvenorii fresh-keeping film coating liquid, which consists of shellac, monoglyceride, sodium carbonate, tea saponin, penthiopyrad, alpha-aminoisobutyric acid and solvents. Specifically, the mass concentration of the shellac is 7-10%, the mass concentration of the monoglyceride is 0.1-0.2%, the mass concentration of the sodium carbonate is 0.3-0.5%, the mass concentration of the tea saponin is 0.001-0.004%, the mass concentration of the penthiopyrad is 0.001-0.005%, and the mass concentration of the alpha-aminoisobutyric acid is 0.01-0.001%. The Siraitia grosvenorii fresh-keeping film coating liquid provided by the invention can reduce the fresh-keeping cost, and does not produce cold resistant pathogenic bacteria, can inhibit the growth of Siraitia grosvenorii's surface pathogenic bacteria, and can prevent decay. The fresh-keeping film coating liquid has good stability, can be stored for six months and does not deteriorate. The fresh-keeping agent provided by the invention can make the Siraitia grosvenorii surface glossy and bright, and after 100 days, the bad fruit rate is less than 2%, and the water loss rate is less than 20%.

Description

technical field [0001] The invention belongs to the field of fruit preservation, and in particular relates to a coating liquid for preservation of Luo Han Guo. Background technique [0002] Luo Han Guo is a tropical fruit mainly produced in Guangxi. If no fresh-keeping treatment is carried out during transportation or storage to the north after picking, it is very easy to cause rapid deterioration and rot of Luo Han Guo due to respiration or residual harmful bacteria on the surface. Most of the existing fresh-keeping methods are cold storage, but the cost of cold storage is relatively high, and cold-resistant pathogenic bacteria are likely to be produced. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a fresh-keeping coating liquid for Luo Han Guo and a preparation method thereof. [0004] In order to solve the problems of the technologies described above, the present invention...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23B7/16
Inventor 吴艳李克讷叶洪涛梁勇金
Owner GUANGXI UNIVERSITY OF TECHNOLOGY
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