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Freshness retaining fruit wax containing sumac wax component, preparation method and application thereof

A technology of tree wax and fruit wax, which is applied in the direction of protecting fruits/vegetables with a coating protective layer, which can solve the problems of fruit accumulation of odorous substances, affecting appearance, whitening of fruit surface, etc., and achieve low accumulation of odorous substances and water retention effect Good, the effect of extending the shelf life

Active Publication Date: 2016-02-03
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although these fruit waxes can increase the appearance of fruits and delay the weight loss of fruits, the following problems have been found in the actual application process: (1) the surface is white after waxing, which affects the appearance and reduces the economic value of fruits; (2) some waxes cannot be used. Delay fruit weight loss; (3) After waxing, the fruit is easy to quickly accumulate odorous substances, causing flavor deterioration and even loss of edible value (Zhang Yungui, etc., the main function and existing problems of fruit waxing. Southwest Horticulture, 2000, 28 (2) :13.)

Method used

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  • Freshness retaining fruit wax containing sumac wax component, preparation method and application thereof
  • Freshness retaining fruit wax containing sumac wax component, preparation method and application thereof
  • Freshness retaining fruit wax containing sumac wax component, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-8

[0038] A fresh-keeping fruit wax containing sumac wax, prepared from the following raw materials: sumac wax (Zigui, Hubei), candelilla wax (Guangdong Zhongpeng Chemical Co., Ltd.), glycerin (Sinopharm Chemical Reagent Co., Ltd., content ≥99.0%), Tween 20 (Sinopharm Chemical Reagent Co., Ltd., moisture content ≤3.0%), Span 80 (Sinopharm Chemical Reagent Co., Ltd., moisture content ≤3.0%), ammonia water (Wuhan United Soda Factory, content 25%) %-28%), deionized water.

[0039] A kind of fresh-keeping fruit wax containing sumac wax composition, it is made of following components by mass percentage:

[0040] Unit: mass percentage, %

[0041]

[0042]

Embodiment 9

[0044] A kind of fresh-keeping fruit wax containing sumac wax composition, the preparation step comprises:

[0045] (1) select fresh-keeping fruit wax raw material: select and take each component described in example 5;

[0046] (2) Add raw materials: adopt phase inversion emulsification method, add candelilla wax, sumac wax, glycerol, Tween 20, Span 80, and ammonia water into a three-necked flask;

[0047] (3) Heat to dissolve: place the three-neck flask in a water bath at 85°C, heat and melt with uniform stirring, the stirring speed is 250 rpm, and the emulsification time is 25 minutes to form a golden yellow transparent solution;

[0048] (4) Adding water: Slowly add deionized water at 90°C during the stirring process until 22.1% of the total deionized water is added to make the W / O emulsion phase invert to form an O / W emulsion, and then add the remaining 85 Deionized water above ℃, continue to react for about 25 minutes, and finally cool to room temperature, that is.

[...

Embodiment 10

[0053] After the fresh-keeping fruit wax prepared by the formula described in Example 5 is treated with the Newhall navel orange by artificial dipping and waxing in a conventional manner, the Newhall navel orange has a certain luster, and is placed at 21 ° C and 50% RH for about 2 weeks After treatment, it still has a certain gloss, no whitening, and the weight loss rate is 9.29%; the content of ethanol is 1698.91ul / L, the content of acetaldehyde is 3.96ul / L, and the content of methanol is 53.40ul / L, while the commercial wax Xianliang 402D after treatment , the weight loss rate was 13.87%; the ethanol content was 2064.82ul / L, the acetaldehyde content was 7.72ul / L, and the methanol content was 126.34ul / L. This product is stored at room temperature after processing Newhall navel oranges. It has a good water retention effect and low accumulation of odorous substances, which can significantly prolong the shelf life of Newhall navel oranges.

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Abstract

The present invention discloses a freshness retaining fruit wax containing a sumac wax component, a preparation method and an application thereof. The freshness retaining fruit wax containing the sumac wax component is prepared by using sumac wax, candelilla wax, Tween 20, Span 80, glycerin, ammonia water and deionized water. The water-soluble fruit wax is refined via a scientific method by using the natural sumac wax and candelilla wax, is better in film-forming property, has a certain luster after filming without whitening, and can retain water and freshness. Compared with the imported wax liquid, the fruit wax has a better water retention effect, significantly lowers accumulation of odor substances, significantly prolongs the shelf life of fruit products, has an overall performance better than the current imported fruit wax, meets green and safe food requirements, and can be applied to waxing of fruits and vegetables, especially oranges and tangerines.

Description

technical field [0001] The invention belongs to the interdisciplinary fields of chemical engineering and biology, and in particular relates to a fresh-keeping fruit wax containing sumac wax component and a preparation method thereof, and also relates to an application in citrus fresh-keeping. Background technique [0002] Sumac wax, also called Japanese wood wax, is a natural, safe and edible plant wax with medicinal value and cheap price, which can be extracted and processed from the seed coat of sumac seeds. Sumac is an important economic tree belonging to the family Anacardiaceae. There are more than 200 species in my country, and there are about 150 identified main species, about 500 million plants, of which about 100 million are able to set seeds. The production of lacquer seeds can reach 1.5 million tons, ranking first in the world and rich in resources. Sumac wax is a solid oil with high melting point and low iodine value, which is earthy yellow in color, soft in text...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/16
Inventor 程运江徐坤洋张立邓秀新
Owner HUAZHONG AGRI UNIV
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