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Cinnamomum zeylanicum extract and use thereof in acaricide

A technology of Ceylon cinnamon and extract, applied in the application, acaricide, biocide and other directions, to achieve the effects of easy availability of raw materials, simple manufacturing process and good control effect

Active Publication Date: 2013-06-12
ENVIRONMENT & PLANT PROTECTION INST CHINESE ACADEMY OF TROPICAL AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, no reports of using Ceylon cinnamon as raw material to manufacture plant-based acaricides have been found

Method used

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  • Cinnamomum zeylanicum extract and use thereof in acaricide
  • Cinnamomum zeylanicum extract and use thereof in acaricide
  • Cinnamomum zeylanicum extract and use thereof in acaricide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1, the separation of Ceylon cinnamon acaricidal active ingredient

[0047]Ceylon cinnamon leaves were collected from the Botanical Garden of the Chinese Academy of Tropical Agricultural Sciences and confirmed by researcher Fan Zhiwei of the Institute of Environment and Plant Protection of the Chinese Academy of Tropical Agricultural Sciences. The activity tracer method was used to extract and separate insecticidal active substances, and the poisonous activity of different extraction sections or separation sections during the extraction and separation process was tested against Tetranychus pitae. Each time, the part with relatively high activity was selected for the next step of separation. 5 kg of Ceylon cinnamon leaves were naturally dried in the shade, crushed, extracted twice with industrial methanol under reflux at 50°C, 10 hours each time, combined the extracts, and concentrated under reduced pressure to obtain 0.876 kg of extract. Dissolve the extract w...

Embodiment 2

[0050] Embodiment 2, the preparation of Ceylon cinnamon extract

[0051] Dry leaves of Ceylon cinnamon were pulverized through a 40-mesh sieve to obtain ground Ceylon cinnamon. Weigh 100 kg (dry weight) of Ceylon cinnamon powder in a reflux extraction kettle, add 600 kg of methanol, heat to 50 ° C, and reflux extraction for 12 hours; filter; dry the filtrate under reduced pressure (-0.1MPa-0MPa, temperature The condition is 35-40°C) and concentrated to 100 kg to obtain Ceylon cinnamon extract.

Embodiment 3

[0052] Embodiment 3, the preparation of Ceylon cinnamon extract

[0053] The dried Ceylon cinnamon leaves were pulverized through a 40-mesh sieve to obtain Ceylon cinnamon powder. Weigh 100 kilograms (dry weight) of Ceylon cinnamon pulverization in a reflux extraction kettle, add 500 kilograms of methanol: acetone mixed solvent (the mass ratio of methanol to acetone is 1: 1), heat to 45 ° C, and reflux extraction for 8 hours; Filtrate; dry the filtrate under reduced pressure (-0.1MPa-0MPa, the temperature condition is 35-40°C) and concentrate to 100 kg to obtain the Ceylon cinnamon extract.

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Abstract

The invention discloses a cinnamomum zeylanicum extract and use thereof in an acaricide. The method for preparing the cinnamomum zeylanicum extract comprises the following steps: 1) crushing cinnamomum zeylanicum leaves to obtain crushed cinnamomum zeylanicum; and 2) extracting the cinnamomum zeylanicum extract by using an organic solvent in an amount of 3 to 10 times of the weight of crushed cinnamomum zeylanicum under conditions of reflux, an extraction temperature of 30 to 50 DEG C and extraction time of 6 to 12 hours, and filtering the solution to remove filter residue to obtain the cinnamomum zeylanicum extract. Active compounds in the acaricide are pure natural substances which are obtained from the nature and safe to nontarget organisms. The acaricide is simple in manufacturing process, readily available in raw material, low in cost, in accordance with the current pesticide development trends and suitable to be promoted and used.

Description

technical field [0001] The invention relates to a Ceylon cinnamon extract and its application in killing acarids. Background technique [0002] Agricultural pest mites have the characteristics of small size, short generation period, fast reproduction, strong adaptability, high mutation rate and easy to produce drug resistance, etc., and are recognized as the most difficult pest community to control (Han Jianyong, Zeng Xinnian, Du Lixiang. Acaricidal activity of plumbago root extract. Acta Plant Protection, 2004, 31(1): 85-90). One of the current control measures for agricultural pest mites is the use of chemical pesticides. However, due to the long-term and large-scale use of chemical pesticides for many years, mites have developed high resistance to many excellent acaricides including pyridaben. It is imperative to develop efficient and safe new acaricides. Finding natural active substances from plants and using them in pest control is a current research trend in the worl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/24A01N25/04A01P7/02
Inventor 冯岗张静袁旭超曲晓唐超温海波金启安陈磊彭正强
Owner ENVIRONMENT & PLANT PROTECTION INST CHINESE ACADEMY OF TROPICAL AGRI SCI
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