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Film-coating fresh-keeping fruit wax for fruits and vegetables and preparation method thereof

A technology of coating film preservation and fruit wax, which is applied in the fields of fruit and vegetable preservation, protection of fruits/vegetables with coating protection layer, food preservation, etc. problem, to achieve the effect of moderate viscosity, fast drying speed and long-lasting brightness

Inactive Publication Date: 2010-02-10
天津市赛奥农产品保鲜科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Adopting fruit wax coating film to keep fruits and vegetables fresh is a kind of method, but the simple fruit wax that adopts is not easy to apply and form a film; adopt general solvent to dissolve fruit wax and then apply, and general solvent can pollute fruit and vegetable, and is harmful to people. harmful

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0011] Preparation of fresh-keeping fruit wax coated with fruit and vegetable

[0012] The formula and production process of shellac fresh-keeping wax are as follows:

[0013] One: Configure the following solutions according to the weight ratio: 10.0 parts of shellac, 1.5 parts of morpholine, 0.8 parts of propylene glycol, 0.8 parts of ammonia water, emulsification time of 20 minutes, emulsification temperature of 117 ° C, stirring speed of 750 ~ r / min, when the temperature drops Add 500mg / L natamycin, 10mL / L sec-butylamine, and 300mg / L texadol at 60°C, disperse for 10 minutes, cool down to 30°C, take out, homogenize under high pressure, pressure 40Mpa, homogenize twice.

[0014] Second: configure the following solutions by weight ratio: 15.0 parts of shellac, 2.5 parts of morpholine, 1.5 parts of propylene glycol, 1.2 parts of ammonia water, emulsification time 40min, emulsification temperature is 113) ℃, stirring speed is 1050r / min, when the temperature drops to At 60°C, ad...

example 1

[0019] Example 1: Application of Preserved Fruit Wax on Citrus

[0020] Citrus treated with fresh-keeping fruit wax, under the environmental conditions of temperature of 5°C-10°C and relative humidity of 60-65°C, 5g of each treatment, after 45 days of storage, the fruit is plump and bright in color, and the appearance is better maintained. And the weight loss rate was reduced by about 50 parts, the good fruit rate was increased by about 80 parts, and the fruit quality was normal; the contrast felt soft, and the pericarp shrank, especially the pericarp around the stem.

example 2

[0021] Example 2: Application of fresh-keeping fruit wax on grapefruit and sweet orange

[0022] Citrus treated with fresh-keeping fruit wax, under the environmental conditions of temperature of 5°C-10°C and relative humidity of 60-65°C, 5g of each treatment, after storage for 45 days, compared with the treated grapefruit and sweet orange fruits, the hand feeling Soft, dull, poor appearance, shrunken peel, many rusty spots on grapefruit peel, and mildew spots on sweet orange. Fresh-keeping fruit wax can better maintain the appearance of fruit, the surface is fresh and plump, shiny, good quality, the weight loss rate is reduced by 70 parts, and the good fruit rate is increased by about 65 parts, which shows that the fresh-keeping wax also has a better effect on sweet orange and grapefruit. Good storage effect.

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PUM

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Abstract

The invention relates to a method for preparing a film-coating fresh-keeping fruit wax for fruits and vegetables, which mixes red lac, morpholine, propanediol and ammonia according to weight ratio, and comprises the following steps: emulsifying the mixture for 20 to 40 minutes at an emulsifying temperature of between 113 and 117 DEG C, and stirring the mixture at a speed of between 750 and 1,050 revolutions per minute; when the temperature of the solution is reduced to 60 DEG C, adding natamycin, sec-butylamine and thiabendazole L according to the following proportions; and after dispersing the mixture, reducing the temperature to 30 DEG C, taking the mixture out, and performing high-pressure homogenization on the mixture to obtain the film-coating fresh-keeping fruit wax for fruits and vegetables. The fresh-keeping fruit wax is a dark brown semi-transparent water-soluble emulsion, cannot be hardened after coating, is easy to fall off, has a quick drying speed and moderate viscosity, can perform fruit waxing through a full automatic wax-polishing machine, is bright in color and beautiful, and has lasting brightness. The concentration of the natamycin used by the fresh-keeping fruitwax has only 10<-6> order of magnitude and is in accordance with the standard of the maximum residual quantity in food stated by the national 'use sanitation standard of food additives'; therefore, the film-coating fresh-keeping fruit wax for fruits and vegetables is a safe and environment-friendly fresh-keeping material.

Description

technical field [0001] The invention belongs to fruit and vegetable fresh-keeping agent and its preparation, in particular to a kind of fruit and vegetable coating fresh-keeping fruit wax and its preparation method. Background technique [0002] It is a kind of method to adopt fruit wax film to keep fresh of fruits and vegetables, but the simple fruit wax that adopts is not easy to coat and form a film; adopt general solvent to dissolve fruit wax and then apply, and general solvent can pollute fruit and vegetable, and is harmful to people. harmful. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a fresh-keeping fruit wax coated with a fruit and vegetable film and a preparation method thereof. That is to say, it is easy to apply, and does not cause pollution to fruits and vegetables, and is harmless to the human body. [0004] Technical scheme of the present invention is: [0005] A method for preparing fruit a...

Claims

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Application Information

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IPC IPC(8): A23B7/00A23B7/16A23B7/154A23B7/157
Inventor 胡云峰于晋泽邢亚阁李喜宏
Owner 天津市赛奥农产品保鲜科技有限公司
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