Siraitia grosvenorii water-retaining bactericidal coating liquid and preparation method thereof

A technology of water sterilization and coating liquid, applied in the direction of protecting fruits/vegetables with a coating protective layer, can solve the problems of easy generation of cold-resistant pathogenic bacteria, high refrigeration cost, deterioration of Luo Han Guo, etc. Growth, reduce the cost of preservation, inhibit the effect of respiration

Inactive Publication Date: 2014-04-23
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 Lu

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Dissolve 150g of shellac with 200ml of ethanol at 40°C, then add 1g of monoglyceride, 0.01g of tea saponin, 0.02g of myristic acid and 0.02g of aminooxyacetic acid in sequence, and stir until completely dissolved Finally, add 3g of sodium carbonate, and finally dilute to 1000g with water to obtain the water-retaining and sterilizing coating solution of Luo Han Guo. Put the grosvenor fruit into the grosvenor fruit water-retaining and sterilizing coating solution, dip-coat, and dry in air to obtain a layer of film on the surface of the grosvenor fruit.

Embodiment 2

[0013] Dissolve 180g of shellac with 220ml of ethanol at 40°C, then add 1.5g of monoglyceride, 0.03g of tea saponin, 0.03g of myristic acid and 0.01g of aminooxyacetic acid, and stir until completely After dissolving, add 5g of sodium carbonate, and finally dilute to 1000g with water to obtain the water-retaining and sterilizing coating liquid of Luo Han Guo.

Embodiment 3

[0015] Dissolve 200g of shellac with 300ml of ethanol at 30°C, then add 2g of monoglyceride, 0.04g of tea saponin, 0.02g of myristic acid and 0.015g of aminooxyacetic acid in sequence, and stir until completely dissolved Finally, add 4g of sodium carbonate, and finally dilute to 1000g with water to obtain the water-retaining and sterilizing coating liquid of Luo Han Guo.

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PUM

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Abstract

The invention discloses siraitia grosvenorii water-retaining bactericidal coating liquid. The siraitia grosvenorii water-retaining bactericidal coating liquid consists of the following components in percentage by mass: 15-20 percent of lac, 0.1-0.2 percent of monoglyceride, 0.3-0.5 percent of sodium carbonate, 0.001-0.004 percent of tea saponin, 0.002-0.004 percent of myristic acid and 0.001-0.002 percent of aminooxy acetic acid. According to the coating liquid, the freshness retaining cost can be reduced, cold-resistant pathogenic bacteria are not generated, the breathing of siraitia grosvenorii and the growth of surface pathogenic bacteria can be inhibited, and thus the rot of the siraitia grosvenorii is avoided. The water-retaining bactericidal coating liquid is high in stability and can be stored for half a year without deterioration. According to the water-retaining bactericidal coating liquid disclosed by the invention, the surface of the siraitia grosvenorii can be bright, and after the siraitia grosvenorii is stored for 100 days, the bad fruit rate is less than 2 percent, the water loss rate is less than 10 percent, and the taste is kept fresh.

Description

technical field [0001] The invention belongs to the field of fruit preservation, and in particular relates to a water-retaining and sterilizing coating liquid for 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 water-retaining and sterilizing coating liquid for Luo Han Guo and a preparation method thereof. [0004] In order to solve the problems of the technologies des...

Claims

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Application Information

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IPC IPC(8): A23B7/16
Inventor 吴艳李克讷
Owner GUANGXI UNIVERSITY OF TECHNOLOGY
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