Preparation method of rose geranium essential oil microcapsules with good oxidation resistance and antibacterial properties

An antioxidant, geranium technology, applied in microcapsule preparations, microsphere preparation, food ingredients as antioxidants, etc., can solve the problems of functional properties to be improved, poor thermal stability of core materials, etc., to improve application value, good antibacterial performance, the effect of broadening the application range

Pending Publication Date: 2021-11-30
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing rose geranium essential oil microcapsules with good anti-oxidation and antibacterial properties, so as to overcome the problems of poor thermal stability of the core material and the need to improve functional properties.

Method used

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  • Preparation method of rose geranium essential oil microcapsules with good oxidation resistance and antibacterial properties
  • Preparation method of rose geranium essential oil microcapsules with good oxidation resistance and antibacterial properties
  • Preparation method of rose geranium essential oil microcapsules with good oxidation resistance and antibacterial properties

Examples

Experimental program
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Effect test

Embodiment 1

[0047] According to the following method, using whey protein isolate (abbreviated as WPI) and chitosan hydrochloride (abbreviated as CH) as wall materials, rose geranium essential oils of different concentrations as core materials, and using complex coacervation method to prepare rose geranium essential oil microcapsules :

[0048] (1) Dissolve whey protein isolate and chitosan hydrochloride in deionized water respectively, stir at 600rpm at room temperature for 6h, make it fully hydrated, and obtain whey protein isolate dispersion and shell protein with a mass fraction of 1% respectively. Polysaccharide hydrochloride dispersion.

[0049] (2) Add an appropriate amount of rose geranium essential oil to the whey protein isolate dispersion obtained in step (1), to obtain a whey protein isolate mass fraction of 1%, and rose geranium essential oil mass fractions to be 0.25%, 0.5%, 0.75%, and 1.0% respectively % of several groups of mixtures.

[0050] (3) Shear and homogenize seve...

Embodiment 2

[0063] According to the following method, whey protein isolate (abbreviated as WPI) and chitosan hydrochloride (abbreviated as CH) are used as the wall material, and the rose geranium essential oil is the core material, and the rose geranium essential oil microcapsules are prepared by the complex coacervation method:

[0064] (1) Dissolve whey protein isolate and chitosan hydrochloride in deionized water respectively, stir at 600rpm at room temperature for 6h, make it fully hydrated, and obtain whey protein isolate dispersion and shell protein with a mass fraction of 1% respectively. Polysaccharide hydrochloride dispersion.

[0065] (2) Add rose geranium essential oil with a mass fraction of 0.5% to the whey protein isolate dispersion liquid obtained in step (1) to obtain a mixed liquid.

[0066] (3) Shear and homogenize the mixed solution obtained in step (2): shear speed 12000rpm, shear time 3min; homogeneous pressure 55MPa, cycle times 3 times; then add the shell obtained i...

Embodiment 3

[0088] According to the following method, whey protein isolate (abbreviated as WPI) and carboxymethyl chitosan (abbreviated as CMCS) are used as wall materials, and rose geranium essential oils of different concentrations are used as core materials, and rose geranium essential oil microcapsules are prepared by complex coacervation method :

[0089] (1) Dissolve whey protein isolate and carboxymethyl chitosan in deionized water respectively, stir at 600rpm at room temperature for 6h, make it fully hydrated, and obtain whey protein isolate dispersion and carboxymethyl chitosan with a mass fraction of 1% respectively. Methyl Chitosan Dispersion.

[0090] (2) Add an appropriate amount of rose geranium essential oil to the whey protein isolate dispersion obtained in step (1), to obtain a whey protein isolate mass fraction of 1%, and rose geranium essential oil mass fractions to be 0.25%, 0.5%, 0.75%, and 1.0% respectively % of several groups of mixtures.

[0091] (3) Shear and ho...

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Abstract

The invention discloses a preparation method of rose geranium essential oil microcapsules with good oxidation resistance and antibacterial properties, and belongs to the technical field of food processing. The preparation method comprises the following steps of using protein and polysaccharide as wall materials, and using rose geranium essential oil as a core material; performing high-speed shearing and high-pressure homogenizing so that the wall materials and the core material are jointly emulsified, adjusting pH, adding a curing agent, and performing a complex coacervation method so as to obtain turbid liquid of the rose geranium essential oil microcapsules; and then performing freeze drying so as to obtain the rose geranium essential oil microcapsules. The microcapsules prepared by the preparation method disclosed by the invention can load and protect the rose geranium essential oil, the stability of the rose geranium essential oil is improved, the oxidation resistance of the rose geranium essential oil is well exerted, and the rose geranium essential oil microcapsules have the effect of restraining bacteria; and besides, the preparation method disclosed by the invention is simple in technology, mild in conditions, low in cost, safe and harmless, and is suitable for various fields of foods, health-care products, cosmetics and the like.

Description

technical field [0001] The invention relates to the technical field of food processing, in particular to a method for preparing rose geranium essential oil microcapsules with good antioxidant and antibacterial properties. Background technique [0002] Extracted from the most rose-scented species, rose geranium, rose geranium oil is often used as a substitute for expensive rose essential oil and has been called "the poor man's rose oil" for mass use and mass production. Rose geranium essential oil can not only be added to various high-grade soaps, perfumes and fragrance products, but also can be used to control mosquitoes, as a natural antibacterial agent in food, etc., and because of its high content of monoterpene alcohols and sesquiterpenes, It also has anti-inflammatory, choleretic, anti-cancer, anti-cancer and other effects. Rose geranium essential oil is non-toxic, non-irritating, and shows no side effects, so it is widely used in the fragrance, cosmetic, food, and pha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L3/3472B01J13/06
CPCA23L3/3472B01J13/06A23V2002/00A23V2200/02A23V2200/10A23V2250/21
Inventor 刘夫国韩爽马翠翠闫晓佳刘学波
Owner NORTHWEST A & F UNIV
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