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Natural plant essential oil microemulsion as well as preparation method and application thereof

A natural plant essential oil and microemulsion technology, which is applied in the field of natural plant essential oil microemulsion and its preparation, can solve the problems of high skin sensitization rate and achieve the effect of reducing skin sensitivity, strong uniformity and high stability

Pending Publication Date: 2021-10-12
NANJING INST FOR THE COMPREHENSIVE UTILIZATION OF WILD PLANTS CHINA COOP +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problem of high skin sensitization rate caused by the large use of chemically synthesized surfactants and co-surfactants in the existing natural plant essential oil microemulsion preparation technology, using natural saponin as emulsifier and plant polysaccharide as co-emulsifier The preparation method of natural plant essential oil microemulsion has improved the preparation method of natural plant essential oil microemulsion. The natural plant essential oil microemulsion prepared by this method can effectively overcome the traditional plant essential oil microemulsion due to the use of chemical surfactants and co-surfactants. Sensitive skin problems, and apply the natural plant essential oil microemulsion in the field of cosmetics

Method used

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  • Natural plant essential oil microemulsion as well as preparation method and application thereof
  • Natural plant essential oil microemulsion as well as preparation method and application thereof
  • Natural plant essential oil microemulsion as well as preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1: the preparation of natural plant essential oil microemulsion

[0047] In terms of mass percent, 1% lavender essential oil, 5% sapinsin, 0.5% tremella polysaccharide and 93.5% water are uniformly mixed according to the following steps: 1) the natural surfactant is prepared into a mass concentration of 6 % aqueous solution, the natural co-surfactant is mixed with a concentration of 1% aqueous solution, and the aqueous solutions of the two are mixed uniformly; 2) in the mixed solution obtained in step 1), gradually add natural co-surfactant dropwise at a rate of 1mL / min plant essential oil, and stirred at a stirring temperature of 30°C and a stirring speed of 1000r / min for 5min; 3) the mixed solution obtained in step 2) was dripped Gradually drop it into water while stirring at an acceleration of 5mL / min, and homogenize at a temperature of 30°C, a homogenization speed of 6000r / min, and homogenize for 5min; 4) Mix the mixture obtained in step 3) at a temperatu...

Embodiment 2

[0048] Embodiment 2: the preparation of natural plant essential oil microemulsion

[0049] In terms of mass percentage, 1% of lavender essential oil, 2% of chamomile essential oil, 5% of sapinberry saponin, 5% of tea saponin, 2% of tremella polysaccharide, 3% of bletilla striata polysaccharide and 82% of Water, uniformly mixed according to the following steps: 1) Sapindia saponin and tea saponin are mixed and formulated into an aqueous solution with a mass concentration of 10%, and the natural co-surfactant is formulated with a concentration of 6% aqueous solution, and both 2) to the mixed solution obtained in step 1), gradually add natural plant essential oil dropwise at a rate of 4mL / min, and stir for 10min at a stirring temperature of 40°C and a stirring speed of 2000r / min; 3) Add the mixed liquid obtained in step 2) dropwise to water gradually at a stirring temperature of 45°C and a stirring speed of 4000r / min at a rate of 10mL / min while stirring. ℃, the homogenization sp...

Embodiment 3

[0050] Embodiment 3: the preparation of natural plant essential oil microemulsion

[0051] In terms of mass percentage, 3% chamomile essential oil, 2% rose essential oil, 8% tea saponin, 12% saponin, 6% bletilla striata polysaccharide, 4% oat glucan and 65% Water, uniformly mixed according to the following steps: 1) the natural surfactant is mixed with a mass concentration of 40% aqueous solution, the natural co-surfactant is mixed with a concentration of 10% aqueous solution, and the aqueous solution of the two is mixed uniformly; 2 ) to the mixed solution obtained in step 1), gradually add natural plant essential oil dropwise at a rate of 10mL / min, and stir for 30min at a stirring temperature of 50°C and a stirring speed of 4000r / min; 3) the step 2) Under the conditions of stirring temperature of 50°C and stirring speed of 6000r / min, the obtained mixed solution was gradually added dropwise to water while stirring at a dropping rate of 20mL / min. 10000r / min, homogenizing for ...

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Abstract

The invention aims at the problem of high skin sensitization rate caused by using a large amount of chemically synthesized surfactants such as Tween and cosurfactant such as ethanol and propylene glycol in an existing essential oil microemulsion preparation technology, and improves a preparation method of natural plant essential oil microemulsion. The preparation method adopts a natural surfactant and a natural cosurfactant, and comprises the following specific steps: uniformly mixing a natural surfactant aqueous solution with a natural cosurfactant aqueous solution, gradually dropwise adding natural plant essential oil into the mixed solution while stirring, gradually dropwise adding the mixed solution into water, carrying out primary homogenization and secondary homogenization, and standing until foam is eliminated to obtain the natural plant essential oil microemulsion. The natural plant essential oil microemulsion produced by the method is good in uniformity and strong in stability, can be produced and applied on a large scale, and can be used for developing cosmetics with anti-allergy and anti-inflammation effects.

Description

technical field [0001] The invention belongs to the field of fine chemicals, and in particular relates to a natural plant essential oil microemulsion, a preparation method and application thereof. Background technique [0002] Natural plant essential oils are secondary metabolites in plants. They are composed of simple compounds with relatively small molecular weights. They have a certain aromatic smell and are oily liquid substances that can volatilize at room temperature. Because of its biological activities such as fragrance enhancement, anti-allergy, anti-inflammation, sterilization, and anti-oxidation, it has been used in the field of cosmetics, among which lavender essential oil, chamomile essential oil and rose essential oil are widely used. Lavender essential oil has antibacterial, smooth muscle relaxation, sedative, antidepressant and other applications. It has a long history of application and can be used to develop products such as aromatherapy, skin care and wash...

Claims

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Application Information

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IPC IPC(8): A61K8/92A61K8/63A61K8/73A61K8/06A61Q19/00
CPCA61K8/922A61K8/73A61K8/63A61K8/068A61Q19/00A61Q19/005A61K2800/596A61K2800/10A61K2800/782
Inventor 陈斌周谦黄晓德张锋伦刘智敏郑俊钱骅赵伯涛
Owner NANJING INST FOR THE COMPREHENSIVE UTILIZATION OF WILD PLANTS CHINA COOP
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