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Mint essential oil emulsion with high stability

A peppermint essential oil, high stability technology, applied in the direction of emulsion delivery, medical preparations with non-active ingredients, medical preparations containing active ingredients, etc., can solve the problem of accelerated degradation of resveratrol, limited application, easy degradation, etc. problems, and achieve the effects of easy industrial promotion and application, improved storage stability, and simple methods

Active Publication Date: 2018-08-31
JIANGNAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, peppermint essential oil is poor in water solubility, has a strong odor and is volatile; resveratrol has low solubility in water and oil, and is easy to oxidize and degrade, which greatly limits the application of both in actual industrial production and food systems.
[0005] In the prior art, the embedding method is often used to solve the problems of poor water solubility and easy volatility of peppermint essential oil and low solubility and easy degradation of resveratrol
Studies have reported that the use of oil-in-water emulsions to embed multiple functional factors focuses on the embedding and protection of hydrophobic functional factors, but this method has a low embedding rate for amphiphilic resveratrol. (about 50%); there are also research reports that whey protein isolate is pre-denatured, and calcium ions are added for cross-linking, although the interfacial embedding rate of resveratrol is increased, the degradation of resveratrol is accelerated

Method used

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  • Mint essential oil emulsion with high stability
  • Mint essential oil emulsion with high stability
  • Mint essential oil emulsion with high stability

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Example 1: Preparation of Zein-Resveratrol-Pectin Nanoparticles

[0069] (1) Prepare zein nanoparticles embedding resveratrol by reverse phase solvent method, dissolve zein in 80% ethanol to obtain a zein solution with a concentration of 40 mg / mL, and then add Resveratrol, obtain zein-resveratrol mixed solution, the mass ratio of zein and resveratrol is 50-10:1;

[0070] (2) Pour the zein-resveratrol mixed solution obtained in the above (1) dropwise or quickly into pure water being stirred, the volume ratio of the zein-resveratrol mixed solution to water The ratio is 1:9, after the zein-resveratrol nanoparticles are obtained, the ethanol in the system is removed by rotary evaporation or nitrogen blowing, and the lost amount of ethanol is supplemented with pure water;

[0071] (3) Add the zein-resveratrol nanoparticles prepared in the above (2) dropwise or quickly into the stirring pectin water with a pH of 4.0 and a concentration of 0.5 mg / mL-2.0 mg / mL In the solution...

Embodiment 2

[0079] Example 2: Preparation of oil-in-water peppermint essential oil emulsion stabilized by zein-resveratrol-pectin composite nanoparticles

[0080] (1) Prepare zein-resveratrol nanoparticles and zein-resveratrol-pectin composite nanoparticles with reference to the method of Example 1, wherein the concentration of zein is 2 mg / mL, white The concentration of veratrol is 0.2mg / mL, and the concentration of pectin is 0.5-2.0mg / mL;

[0081] (2) Add the peppermint essential oil of 50 mg / mL to the zein-resveratrol nanoparticles obtained in (1) and the zein-resveratrol-pectin composite nanoparticles. (8000rpm, 2min) to obtain a coarse emulsion, then homogeneously 1min under 250Bar conditions, to obtain the final Peppermint essential oil emulsion;

[0082] (3) Detect the particle size distribution and ζ-potential of the obtained peppermint essential oil emulsion.

[0083] The test results are as follows: the peppermint essential oil emulsion stabilized by zein nanoparticles and zei...

Embodiment 3

[0089] Embodiment 3: Detection of peppermint essential oil and resveratrol embedding rate

[0090] (1) The peppermint essential oil emulsion of different formulations is prepared with reference to the method of Example 2, wherein the peppermint essential oil content is 50 mg / mL, the zein content is 2 mg / mL, the resveratrol content is 0.2 mg / mL, pectin The content is 0-2mg / mL;

[0091] (2) The embedding rate of the prepared peppermint essential oil emulsion was tested.

[0092] The test results are as follows: under the condition of no pectin, the embedding rates of peppermint essential oil and resveratrol were 74% and 66% respectively; The entrapment rates increased to 83% and 87%, respectively. It shows that the zein-pectin composite nanoparticles have more embedding effect. As the concentration of pectin further increased to 2mg / mL, the embedding rate of peppermint essential oil increased to 87%, but that of resveratrol decreased to 78%. ( image 3 Shown is the effect o...

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Abstract

The invention discloses a mint essential oil emulsion with high stability and belongs to the technical field of food processing. The mint essential oil emulsion is prepared from mint essential oil, resveratrol, zein and pectin as raw materials, zein-pectin nanoparticles into which resveratrol are embedded are prepared by using an inverse-phase solvent method, and a stable mint essential oil emulsion is prepared by using a high-pressure homogenization method. The embedding rate of the emulsion to the resveratrol is up to 80% or greater, in addition, the resveratrol and the mint essential oil have synergetic antibacterial effects, and meanwhile, due to addition of the pectin, the stability of the resveratrol can be improved. The invention provides a method of co-embedded essential oil and amphipathic functional factors, and further provides a method for improving the stability of the resveratrol and preparing an antibacterial agent with the resveratrol and the mint essential oil. The method is simple to operate and easy in industrial popularization.

Description

technical field [0001] The invention relates to a highly stable peppermint essential oil emulsion, which belongs to the technical field of food processing. Background technique [0002] Foodborne diseases caused by pathogenic microorganisms are an increasingly serious health problem worldwide, and natural antimicrobial agents are attracting more and more attention due to their biosafety and high antibacterial ability. [0003] Peppermint essential oil has antibacterial, fungal, and viral effects, and can be used as a potential natural antibacterial agent; resveratrol is a polyphenolic compound with broad-spectrum antibacterial properties. Therefore, peppermint essential oil and resveratrol are used as Natural antibacterial agents prepared from raw materials have a huge potential market. [0004] However, peppermint essential oil is poor in water solubility, has a strong odor and is volatile; resveratrol has low solubility in water and oil, and is easy to oxidize and degrade...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/534A61K31/05A61K9/107A61K47/42A61K47/36A61K8/92A61K8/64A61K8/73A61K8/06A61Q17/00A61P31/04A23L3/3472A23L3/349A23L29/10A23P10/30
CPCA23L3/3472A23L3/349A23V2002/00A61K8/06A61K8/645A61K8/73A61K8/922A61K9/107A61K31/05A61K36/534A61K47/36A61K47/42A61K2800/592A61Q17/005A23L29/10A23P10/30A61K2300/00A23V2200/222A23V2200/10A23V2250/21A23V2250/2132A23V2250/5482A23V2250/5072A23V2300/26
Inventor 梁丽程昊岳春方正
Owner JIANGNAN UNIV
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