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Cannabis sativa leaf essential oil micro-capsule powder, and preparation method and application thereof

A technology of hemp leaves and microencapsulated powder, which is applied in the field of botanical fungicides, can solve the problems of air, light and temperature sensitivity, easy decomposition and deterioration, and poor stability, and achieves safe antibacterial methods, uniform and effective control, and low cost Effect

Active Publication Date: 2019-06-21
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The leaves of hemp are green and can be divided into single leaves and compound leaves, and most of them are palmate compound leaves. The phyllotaxy is opposite and alternate. Hemp leaves contain essential oils, which are natural antioxidants and antibacterial agents. Therefore, the production and application of hemp leaf essential oils have attracted widespread attention. Sensitive, easy to decompose and deteriorate, poor stability

Method used

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  • Cannabis sativa leaf essential oil micro-capsule powder, and preparation method and application thereof
  • Cannabis sativa leaf essential oil micro-capsule powder, and preparation method and application thereof
  • Cannabis sativa leaf essential oil micro-capsule powder, and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Mix 20g of starch octenyl succinate with 100mL of water, stir at 80°C for 2-5min, and vacuum degass to obtain a wall material solution of starch octenyl succinate; accurately weigh 0.6g of hemp leaf essential oil, and use 10mL Dilute with absolute ethanol; mix the above two solutions at a ratio of 2:1, homogenize at 9000 rpm for 5 minutes, and then degas under vacuum for 2-5 minutes to obtain hemp leaf essential oil emulsion; emulsify hemp leaf essential oil The solution was spray-dried under the conditions of air inlet temperature of 170°C and material flow rate of 500mL / h to form microcapsule powder with an essential oil embedding rate of 46.04%.

Embodiment 2

[0025] Mix 30g of starch octenyl succinate with 100mL of water, stir at 80°C for 2-5min, and vacuum degass to obtain a wall material solution of starch octenyl succinate; accurately weigh 0.8g of hemp leaf essential oil, and use 10mL Dilute with absolute ethanol; mix the above two solutions at a ratio of 3:1, homogenize at 9000 rpm for 5 minutes, and then degas under vacuum for 2-5 minutes to obtain hemp leaf essential oil emulsion; emulsify hemp leaf essential oil The liquid was spray-dried under the conditions of air inlet temperature of 180°C and material flow rate of 500mL / h to form microcapsule powder, and the embedding rate of essential oil was 68.75%.

Embodiment 3

[0027] Mix 40g starch octenyl succinate with 100mL water, stir at 80°C for 2-5min, and vacuum degass to obtain starch octenyl succinate wall material solution; accurately weigh 1.0g hemp leaf essential oil, and use 10mL Dilute with absolute ethanol; mix the above two solutions at a ratio of 4:1, homogenize at 9000 rpm for 5 minutes, and then degas under vacuum for 2-5 minutes to obtain hemp leaf essential oil emulsion; emulsify hemp leaf essential oil The solution was spray-dried under the conditions of air inlet temperature of 190°C and material flow rate of 500mL / h to form microcapsule powder with an essential oil embedding rate of 57.65%.

[0028] The method for extracting the hemp leaf essential oil in the above-mentioned examples 1-3 is: get 100g of pulverized hemp leaves in a 3000mL round bottom flask, add 2000mL distilled water, steam distillation for 3h, collect the essential oil in a brown narrow-mouth bottle, and use an appropriate amount of Anhydrous sodium sulfate ...

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Abstract

The invention discloses cannabis sativa leaf essential oil micro-capsule powder, and a preparation method and application thereof, and belongs to the technical field of botanical fungiticides. The cannabis sativa leaf essential oil micro-capsule powder is finally prepared by taking octenyl succinic acid modified starch as a wall material, cannabis sativa leaf essential oil as a core material, performing high-speed homogenizing to obtain an emulsion, and performing spray-drying on the emulsion. By taking the cannabis sativa leaf essential oil micro-capsule powder prepared by the preparation method as a botanical fungiticide, plant pathogenic fungi can be effectively inhibited; according to the preparation method disclosed by the invention, the production cost is effectively reduced, the working efficiency is improved; the pathogenic fungi can be prevented and controlled uniformly and effectively by the cannabis sativa leaf essential oil micro-capsule powder through space diffusion effect of gas; the invention provides a safer and more effective fungicide.

Description

technical field [0001] The invention relates to the technical field of botanical fungicides, in particular to hemp leaf essential oil microcapsule powder and its preparation method and application. Background technique [0002] According to statistics, plant diseases caused by pathogenic fungi account for about 70-80% of the total plant diseases each year. At present, plant diseases are mostly controlled by chemical methods, but most of them have a series of problems such as high cost, environmental pollution, and serious pesticide residues. Therefore, the development of botanical fungicides is particularly urgent. [0003] Hemp (Cannabis sativa L.), also known as hemp, hemp, cold hemp, thread hemp, etc., is an annual herb plant native to Sikkim, India and Central Asia, and is also cultivated in various parts of my country. The leaves of hemp are green and can be divided into single leaves and compound leaves, and most of them are palmate compound leaves. The phyllotaxy is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/08A01N25/28A01N25/10A01P3/00
Inventor 李会珍张志军高哲李晓君陈铁
Owner ZHONGBEI UNIV