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Essential oil nano-emulsion as well as preparation method and application thereof

A technology of nanoemulsion and essential oil, applied in the field of essential oil nanoemulsion and its preparation

Inactive Publication Date: 2021-07-06
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN111034861A application discloses a method of using lauric monoglyceride to prepare oil-in-water emulsion to coat plant essential oil. The emulsion is coated on attapulgite and used in animal feed, not suitable for the field of food preservation
Chinese patent CN112075564A application discloses a lemon eucalyptus essential oil / nisin nanoemulsion and its preparation method. The synergistic antibacterial effect of essential oil and nisin improves the antibacterial activity of the nanoemulsion, but an additional emulsifier ( Tween 80 and lecithin)

Method used

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  • Essential oil nano-emulsion as well as preparation method and application thereof
  • Essential oil nano-emulsion as well as preparation method and application thereof
  • Essential oil nano-emulsion as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] The present embodiment has prepared a kind of essential oil nanoemulsion, and concrete process is:

[0036] S1: Mix clove oil and corn oil evenly with a mass ratio of 7:3, which is the oil phase;

[0037] S2: Disperse polyglyceryl caprate with a mass fraction of 4% in deionized water, and stir magnetically at 30°C until the polyglyceryl caprate is completely hydrated, which is the water phase;

[0038] S3: The oil phase and the water phase were mixed at a mass ratio of 1:9, mixed at a high speed of 10,000 r / min for 2 minutes, and then subjected to a high-pressure homogenization cycle under a pressure of 110 MPa for 3 times to obtain an essential oil nanoemulsion.

Embodiment 2

[0040] The present embodiment has prepared a kind of essential oil nanoemulsion, and concrete process is:

[0041] S1: Mix clove oil and corn oil evenly in a mass ratio of 6:4, which is the oil phase;

[0042] S2: Disperse polyglyceryl laurate with a mass fraction of 4% in deionized water, and magnetically stir at 50°C until the polyglyceryl laurate is completely hydrated, which is the water phase;

[0043] S3: The oil phase and the water phase were mixed at a mass ratio of 1:4, mixed at a high speed of 8000r / min for 5min, and then subjected to a high-pressure homogenization cycle under a pressure of 100MPa for 3 times to obtain an essential oil nanoemulsion.

Embodiment 3

[0045] The present embodiment has prepared a kind of essential oil nanoemulsion, and concrete process is:

[0046] S1: Mix clove oil and corn oil evenly in a mass ratio of 1:1, which is the oil phase;

[0047] S2: Disperse a mixture of polyglyceryl caprate and polyglyceryl laurate (the mass ratio of the two is 1:1) with a mass fraction of 4% in deionized water, and stir magnetically at 40°C until medium-chain polyglycerol fatty acid ester Fully hydrated, that is, the water phase;

[0048] S3: The oil phase and the water phase were mixed at a mass ratio of 3:5, mixed at a high speed of 9000r / min for 4min, and then subjected to high-pressure homogeneous circulation at a pressure of 90MPa for 5 times to obtain an essential oil nanoemulsion.

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Abstract

The invention provides an essential oil nano-emulsion as well as a preparation method and application thereof. In the essential oil nano-emulsion, essential oil and the medium-chain polyglycerol ester have a synergistic antibacterial effect, so that the negative influence of a curing inhibitor on the antibacterial effect of the emulsion can be eliminated; and meanwhile, the addition amount of the essential oil in food and bad sensory characteristics generated by the essential oil are reduced, so that the essential oil nano-emulsion has long-term storage stability, and has efficient antibacterial activity on staphylococcus aureus and escherichia coli. The essential oil nano-emulsion disclosed by the invention is simple and safe in preparation raw materials, free of toxic materials, simple and convenient in preparation method and easy for large-scale production, and can be widely applied to bacteriostasis and corrosion prevention of foods.

Description

technical field [0001] The invention belongs to the technical field of food antibacterial and anticorrosion, and in particular relates to an essential oil nanoemulsion and its preparation method and application. Background technique [0002] Essential oils are volatile aromatic substances extracted from plants and herbs that have broad-spectrum antibacterial activity. Most essential oils have been recognized by the U.S. Food and Drug Administration (FDA) as generally recognized as safe (GRAS) substances, and are often used as preservatives and flavoring agents in food. However, the shortcomings of essential oils such as volatility, instability, low water solubility, and strong aromatic flavor limit their wide application in the food industry. Encapsulation of essential oils in nanoemulsions helps to improve the stability and water solubility of essential oils, thereby enhancing their antibacterial activity. [0003] Essential oil nanoemulsions are often prone to Ostwald ri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L3/3472A23L29/10
CPCA23L3/3472A23L29/10A23V2002/00
Inventor 杨继国张尚微娄文勇
Owner SOUTH CHINA UNIV OF TECH
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