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A kind of preparation method of deodorant type long-acting slow-release solid plant essential oil

A plant essential oil and deodorizing technology, which is applied in the directions of deodorization, essential oil/spice, and fat production, can solve the problems of poor stability in the use process, less essential oil loading, and fast release speed, and improve product strength. , The effect of increasing the loading capacity and prolonging the service life

Active Publication Date: 2017-11-07
FUJIAN YUETE NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the main shortcomings of the current application of microcapsule essential oils are: the loading of essential oils is small, the release speed is fast, the service life is short, and the stability of the use process is not good.

Method used

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  • A kind of preparation method of deodorant type long-acting slow-release solid plant essential oil

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preparation example Construction

[0020] Such as figure 1 Shown, a kind of preparation method of deodorant type long-acting slow-release solid plant essential oil, described preparation method comprises the following steps:

[0021] (1) The halloysite nanotubes are immersed in dilute hydrochloric acid with a mass fraction of 5 to 20% at a temperature of 25 to 80°C for 30 to 60 minutes, filtered, washed, and dried in sequence to obtain activated halloysite nanotubes 1 ;

[0022] (2) Under the protection of an inert gas, dissolve the cyclodextrin in the solvent according to the weight ratio of the cyclodextrin to the solvent 1:5 to 1:10 to obtain a cyclodextrin solution; then add the step ( 1) The obtained activated halloysite nanotubes 1, the weight ratio of activated halloysite nanotubes to cyclodextrin is 1:3-1:10, mix well to obtain solution a; then add isocyanate to solution a, cyclodextrin The weight ratio of essence to isocyanate is 1:1~1:5, mix uniformly to obtain solution b; heat solution b to a tempe...

Embodiment 1

[0031] A preparation method of deodorizing long-acting slow-release solid plant essential oil, said preparation method comprising the following steps:

[0032] (1) Dip the halloysite nanotubes in dilute hydrochloric acid with a mass fraction of 20% at a temperature of 25° C. for 60 minutes, filter, wash, and dry in sequence to obtain activated halloysite nanotubes 1;

[0033] (2) Under nitrogen protection, according to the weight ratio of β-cyclodextrin and dimethyl sulfoxide 1:5, β-cyclodextrin was dissolved in dimethyl sulfoxide to obtain a β-cyclodextrin solution; Add the activated halloysite nanotube 1 obtained in step (1) to the β-cyclodextrin solution, the weight ratio of the activated halloysite nanotube to β-cyclodextrin is 1:10, and mix uniformly to obtain solution a; Add 2,4-toluene diisocyanate to solution a, the weight ratio of β-cyclodextrin to 2,4-toluene diisocyanate is 1:1, mix well to obtain solution b; heat solution b to a temperature of 100°C to polymerize ...

Embodiment 2

[0039] A preparation method of deodorizing long-acting slow-release solid plant essential oil, said preparation method comprising the following steps:

[0040] (1) Dip the halloysite nanotubes in dilute hydrochloric acid with a mass fraction of 5% at a temperature of 80° C. for 30 minutes, filter, wash, and dry in sequence to obtain activated halloysite nanotubes 1;

[0041] (2) Under the protection of argon, dissolve hydroxypropyl β-cyclodextrin in dimethyl sulfoxide according to the weight ratio of hydroxypropyl β-cyclodextrin and dimethyl sulfoxide 1:10 to obtain hydroxypropyl β-cyclodextrin Propyl β-cyclodextrin solution; then add the activated halloysite nanotube 1 obtained in step (1) to the hydroxypropyl β-cyclodextrin solution, activate the halloysite nanotube and hydroxypropyl β-cyclodextrin The weight ratio of essence is 1:3, mix well to get solution a; then add 4,4-diphenylmethane diisocyanate, hydroxypropyl β-cyclodextrin and 4,4-diphenylmethane diisocyanate to sol...

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Abstract

The invention discloses a preparation method of deodorizing long-acting slow-release solid plant essential oil. Firstly, the halloysite nanotube is activated, and then formed on the surface of the activated halloysite nanotube through the polymerization reaction of cyclodextrin and isocyanate network structure, and then the essential oils are loaded into the nanotubes by impregnation. Using the nanoscale cavities in halloysite nanotubes to increase the loading capacity of plant essential oils and reduce the release rate of plant essential oils; using cyclodextrin molecular holes to form complexes with essential oil molecules at the ports of halloysite nanotubes, further Control the release of essential oils to achieve long-term sustained release of essential oils; the molecular cavities of cyclodextrin polymers can also include and absorb odor molecules, thereby deodorizing. The service life of the essential oil in the product is greatly extended, and the product strength is obviously improved. The invention has reasonable design, integrates deodorization and slow release of essential oil, and has strong practicability.

Description

technical field [0001] The invention relates to a preparation method of solid plant essential oil, in particular to a preparation method of deodorizing long-acting slow-release solid plant essential oil. Background technique [0002] Natural plant essential oil is a natural antibacterial agent with high efficiency, non-toxicity, high selectivity and resistance to drug resistance. However, natural plant essential oil is extremely volatile at room temperature, and is sensitive to air, sunlight, humidity and temperature. Sensitive, easily decomposed or oxidized during storage, resulting in deterioration of aroma. At present, the application of microencapsulation technology can change the essential oil from liquid to solid powder, protect the aroma substances from being directly affected by heat, light, and oxidation, avoid the volatilization of active ingredients, and effectively control the release of aroma substances. However, the main shortcomings of the current application...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L9/013A61L9/012C11B9/00
Inventor 许明洪蔡力锋
Owner FUJIAN YUETE NEW MATERIAL TECH
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