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Volatile extract of pandan leaves as well as preparation method and application thereof

A volatile technology of pandan leaves, which is applied in the field of volatile extracts of pandan leaves and its preparation, and can solve the problems of insect repellents and the like that have not yet been seen on pandan leaves.

Active Publication Date: 2021-08-03
SPICE & BEVERAGE RES INST CHINESE ACAD OF TROPICAL AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report on the use of Panthera leaves for the preparation of insect repellants

Method used

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  • Volatile extract of pandan leaves as well as preparation method and application thereof
  • Volatile extract of pandan leaves as well as preparation method and application thereof
  • Volatile extract of pandan leaves as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1 Materials and methods

[0027] 1.1 Experimental materials

[0028] 1.1.1 Tested plants: Banlan leaves, fresh leaves collected from the Institute of Spices and Beverages, Chinese Academy of Tropical Agricultural Sciences.

[0029] 1.1.2 Pests to be tested: Adults of Blattella germanica (Blattella germanica), which were raised in the laboratory, were healthy, lively, and of the same generation as the pests to be tested.

[0030] 1.2 Experimental method

[0031] 1.2.1 Preparation method of volatile substances in pandan leaves

[0032] Dry and pulverize the pandan leaves, weigh a certain amount of pandan leaf powder, soak it in tap water, place it in a self-made steam distillation device (80°C, distill for 8h), and pour the distillate into the separatory funnel In the process, extract with quantitative n-hexane (volume ratio 1:1), let stand for 30min, and repeat three times, and the obtained n-hexane extract is dried with anhydrous sodium sulfate and then concentrated ...

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PUM

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Abstract

The invention relates to the technical field of insect control, in particular to a pandan leaf extract as well as a preparation method and application thereof. The preparation method comprises the following steps of: crushing pandan leaves, performing distillation extraction with steam, and adding n-hexane into distillate for extraction to obtain extract liquor. Experiments show that the prepared volatile extract of pandan leaves has an obvious repelling effect on German cockroaches and can be used for preparing insect repellents.

Description

technical field [0001] The invention relates to the technical field of insect control, in particular to a volatile extract of pandan leaves and a preparation method and application thereof. Background technique [0002] Cockroach, scientific name cockroach, is one of the important species in medical insects. In recent years, with the acceleration of urbanization, the increase of population density, and the lack of sanitation and control, the invasion of cockroaches in my country has become increasingly serious, and the incidence of related diseases has also increased rapidly. Cockroaches are negative phototaxis insects, and they are nocturnal. Indoor cockroaches hide in dark places in the house during the day and are not easy to clean, such as hidden corners, holes, cracks, holes, etc., but they are mostly located in places with abundant food and close to water sources. Among them, kitchens and utility rooms are the most common, and the damage rate of hall rooms is relative...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/40A01P17/00A61L9/013A44C25/00A61L101/56
CPCA01N65/40A01N65/00A61L9/013A44C25/002A61L2209/21
Inventor 孙世伟苟亚峰秦晓威刘爱勤王政孟倩倩高圣风薛超
Owner SPICE & BEVERAGE RES INST CHINESE ACAD OF TROPICAL AGRI SCI
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