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 f

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0011] Preparation of fresh-keeping fruit wax for fruit and vegetable coating

[0012] The formula and production process of lac fresh-keeping wax

[0013] One: Prepare 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 20min, emulsification temperature 117℃, stirring speed 750~r / min, when the temperature drops When it reaches 60℃, add 500mg / L natamycin, sec-butylamine 10ml / L, tecto300mg / L, disperse for 10min, cool to 30℃, take out, homogenize under high pressure, pressure 40Mpa, homogenize twice.

[0014] Second: configure the following solutions according to weight ratio: 15.0 parts of shellac, 2.5 parts of morpholine, 1.5 parts of propylene glycol, 1.2 parts of ammonia, emulsification time 40min, emulsification temperature 113) ℃, stirring speed 1050r / min, when the temperature drops Add 700mg / L natamycin, sec-butylamine 20ml / L, tecto500mg / L at 60°C, d...

Example

[0019] Example 1: Application of fresh fruit wax on citrus

[0020] The citrus after the preservation of fruit wax, under the environmental conditions of 5℃~10℃, relative humidity of 60~65 parts, 5g each treatment, after 45 days of storage, the fruit is full, the color is bright, and the appearance is well maintained. And the weight loss rate is reduced by about 50 parts, and the good fruit rate is increased by about 80 parts, and the fruit quality is normal; the control feels soft, the peel is shrunk, and the peel around the stalk is particularly serious.

Example

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

[0022] The citrus treated with fresh fruit wax, under the environmental conditions of 5℃~10℃, relative humidity of 60~65 parts, each treatment 5g, after 45d storage, the contrast treatment of huyou and sweet orange fruits, feel Soft, tarnished, poor appearance, shrunken peel, grapefruit peel has many rust spots, sweet oranges have mildew spots. Preservative fruit wax can better maintain the appearance of the fruit, the surface is fresh and full, shiny, and the quality is good. The weight loss rate is reduced by 70 parts, and the good fruit rate is increased by about 65 parts, indicating that the preservation wax is also better for sweet orange and huyou Good storage effect.

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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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