Cinnamomum camphora essential oil microcapsule and preparation method thereof

A technology of borneol camphor essential oil and microcapsules is applied in the directions of botanical equipment and methods, chemicals for biological control, fungicides, etc., and can solve the problems of limited application fields of borneol camphor essential oil, unstable properties, Problems such as the volatile decomposition of essential oils

Pending Publication Date: 2022-04-29
NANJING INST FOR THE COMPREHENSIVE UTILIZATION OF WILD PLANTS CHINA COOP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But borneol camphor essential oil is easy to volatilize and decompose when exposed to heat and light, and its properties are unstable in many environments, which greatly limits the application field of borneol camphor essential oil

Method used

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  • Cinnamomum camphora essential oil microcapsule and preparation method thereof
  • Cinnamomum camphora essential oil microcapsule and preparation method thereof
  • Cinnamomum camphora essential oil microcapsule and preparation method thereof

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preparation example Construction

[0029] In the present invention, the particle size of the borneol camphor leaf powder is preferably ≤20 mesh; the preparation method of the borneol camphor leaf powder preferably includes the following steps: the fresh branches and leaves of borneol camphor are crushed through a 20 mesh sieve to obtain the Describe borneol camphor leaf powder.

[0030] In the present invention, during the distillation process, the mass ratio of borneol camphor leaf powder to water is preferably 1: (10-20), more preferably 1:15.

[0031] In the present invention, the distillation time is preferably 3-5 hours, more preferably 4 hours.

[0032] After the distillation, the present invention preferably further includes standing and stratifying the obtained distillation feed liquid, and the upper layer is the borneol camphor essential oil.

[0033] The borneol camphor camphor essential oil microcapsules provided by the invention include wall materials, and the wall materials are dioscin and whey pr...

Embodiment 1

[0067] The preparation method of borneol camphor essential oil microcapsules comprises the following steps:

[0068] (1) Preparation of wool gum yam polysaccharide

[0069] Harvest fresh underground tubers of yam yams, wash and dry naturally, peel and cut into 1cm 3 Small pieces; use 2.5 times the mass of petroleum ether to reflux and degrease for 5 hours, and filter the filter residue to dry it for later use; add 15 times the mass of deionized water to the filter residue, reflux hot water at 70°C for 150 minutes with ultrasonic assisted extraction, filter, and decompress the filtrate Concentrate to obtain a concentrated solution; add 4 times the volume of absolute ethanol to the concentrated solution, let it stand overnight, and after suction filtration, wash the filter residue with absolute ethanol, ether and acetone in sequence, and freeze-dry at -80 ° C for 12 hours to obtain wool Gum yam polysaccharide.

[0070] (2) Preparation of borneol camphor essential oil

[0071]...

Embodiment 2

[0079] The preparation method of borneol camphor essential oil microcapsules comprises the following steps:

[0080] (1) Preparation of wool gum yam polysaccharide

[0081] Harvest fresh underground tubers of yam yams, wash and dry naturally, peel and cut into 1cm 3 small pieces; use 2 times the mass of petroleum ether to reflux and degrease for 6 hours, and filter the residue to dry for later use; add 10 times the mass of deionized water to the filter residue, reflux hot water at 60°C for 180 minutes, filter the extract, and decompress Concentrate the filtrate; add 4 times the volume of absolute ethanol to the concentrate, let it stand overnight, after suction filtration, wash the filter residue with absolute ethanol, ether and acetone in sequence, and freeze-dry at -60°C for 18 hours to obtain diosgenin .

[0082] (2) Preparation of borneol camphor essential oil

[0083] Take the fresh branches and leaves of borneol camphor, and crush them through a 20-mesh sieve to obtai...

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Abstract

The invention belongs to the technical field of microcapsules, and provides a cinnamomum camphora essential oil microcapsule and a preparation method thereof. The cinnamomum camphora essential oil microcapsule comprises a core material and a wall material, and the core material comprises cinnamomum camphora essential oil and a cosolvent; the wall material comprises yam polysaccharide and whey protein isolate. According to the invention, the cinnamomum camphora essential oil is used as a core material and packaged in the microcapsule taking the whey protein isolate and the dioscorea alata polysaccharide as wall materials, so that the defects that the cinnamomum camphora essential oil is easy to decompose when being heated and light and is not easy to dissolve in a water-phase system are overcome, and the application field of the cinnamomum camphora essential oil is widened. Meanwhile, the embedding rate of the cinnamomum camphora essential oil is improved by taking whey protein isolate and dioscorea alata polysaccharide as wall materials. In addition, whey protein isolate and yam polysaccharide are used as wall materials, so that the antibacterial property of the cinnamomum camphora essential oil microcapsule is also improved.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a borneol camphor essential oil microcapsule and a preparation method thereof. Background technique [0002] Cinnamomum camphora (L.) Presl is an evergreen broad-leaved tree of the genus Cinnamomum in the Lauraceae family. Main source plants. The branches and leaves of borneol camphor have high oil content, and the yield of extracting borneol essential oil from the branches and leaves is about 2%, and the main component of the extracted borneol essential oil is natural D-borneol with high purity, accounting for about 70-80% %. In addition to the main component D-borneol, borneol camphor essential oil also contains camphor, 1,8-cineole, safrole, α-pinene, linalool, limonene, camphene, myrcene, Various chemical components such as clovene and bornyl acetate. Borneo camphor essential oil has excellent bactericidal, antiviral and insecticidal effects. It is effective a...

Claims

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Application Information

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IPC IPC(8): A01N65/24A01N25/28A01P3/00A01P1/00
CPCA01N65/24A01N25/28Y02A50/30
Inventor 单承莺马世宏夏冷柯诗媛聂韡束成杰
Owner NANJING INST FOR THE COMPREHENSIVE UTILIZATION OF WILD PLANTS CHINA COOP
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