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Preparation method of torreya grandis aril essential oil clathrate compound

A technology of volatile oil inclusion compound and Torreya aril is applied in the field of pesticide preparations, which can solve the problems of waste of material resources, environmental pollution and the like, and achieve the effects of improving utilization rate, high inclusion compound yield and reducing volatility

Inactive Publication Date: 2014-11-26
SHAOXING UNIV YUANPEI COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]Torreya grandis (Torreya grandis CV. Merrilli) has a thick layer of fleshy aril on the outside of the seeds, accounting for about 10% of the fresh weight of the seeds 50% to 60%. Some studies have shown that the arils of Torreya torreya contain alcohol, ketone, alkenes, aldehydes and other volatile oil components. For a long time, the arils of Torreya torreya are discarded after processing, which wastes valuable material resources caused serious environmental pollution

Method used

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  • Preparation method of torreya grandis aril essential oil clathrate compound

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Experimental program
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Effect test

Embodiment 1

[0024] The preparation method of Torreya aril volatile oil clathrate of the present invention comprises the following steps:

[0025] (1) Extract volatile oil from Torreya aril: Cut Torreya aril into small pieces, weigh 100g, put it into a 2000ml round bottom flask, add 10 times of water, connect the volatile oil extraction device, heat to boiling, Start timing, after boiling for 4 hours, let it stand for 1 hour to collect 1.36g of Torreya aril volatile oil;

[0026] (2) Take 10g of β-cyclodextrin and mix it with water at a weight ratio of 1:4 to make an aqueous solution of β-cyclodextrin;

[0027] (3), take 1g of the volatile oil prepared in step (1), and make a volatile oil ethanol solution with 100% ethanol by weight percentage in a volume ratio of 1:1; the volatile oil weighed in this step (3) and the step ( 2) The weight ratio of β-cyclodextrin is 1:10.

[0028] (4) Add the volatile oil ethanol solution prepared in step (3) dropwise to the β-cyclodextrin aqueous solutio...

Embodiment 2

[0030] The preparation method of Torreya aril volatile oil clathrate of the present invention comprises the following steps:

[0031] (1) Extract volatile oil from Torreya aril: Cut Torreya aril into small pieces, weigh 100g, put it into a 2000ml round bottom flask, add 8 times of water, connect the volatile oil extraction device, heat to boiling, Start timing, after boiling for 5 hours, let it stand for 0.8 hours to collect 1.01g of Torreya aril volatile oil;

[0032] (2) Take 8g of β-cyclodextrin and mix it with water at a weight ratio of 1:8 to make an aqueous solution of β-cyclodextrin;

[0033] (3), take 1g of the volatile oil prepared in step (1), and make a volatile oil ethanol solution with 100% ethanol by weight percentage in a volume ratio of 1:1; the volatile oil weighed in this step (3) and the step ( 2) The weight ratio of β-cyclodextrin is 1:8.

[0034] (4) Add the volatile oil ethanol solution prepared in step (3) dropwise to the β-cyclodextrin aqueous solutio...

Embodiment 3

[0036] The preparation method of Torreya aril volatile oil clathrate of the present invention comprises the following steps:

[0037] (1) Extract volatile oil from Torreya aril: Cut Torreya aril into small pieces, weigh 100g, put it into a 2000ml round bottom flask, add 9 times of water, connect the volatile oil extraction device, heat to boiling, Start timing, after boiling for 6 hours, let it stand for 0.5 hours, and collect 1.1 g of Torreya aril volatile oil;

[0038] (2) Take 7g of β-cyclodextrin and mix it with water at a weight ratio of 1:7 to make an aqueous solution of β-cyclodextrin;

[0039] (3), take 1g of the volatile oil prepared in step (1), and make a volatile oil ethanol solution with 100% ethanol by weight percentage in a volume ratio of 1:1; the volatile oil weighed in this step (3) and the step ( 2) The weight ratio of β-cyclodextrin is 1:7.

[0040] (4) Add the volatile oil ethanol solution prepared in step (3) dropwise to the β-cyclodextrin aqueous solut...

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Abstract

The invention relates to a preparation method of a torreya grandis aril essential oil clathrate compound. The preparation method comprises the following steps of (1) extracting essential oil from torreya grandis aril; (2) taking beta-cyclodextrin, and preparing beta-cyclodextrin water solution according to a mass ratio of the beta-cyclodextrin to water being 1:(4-8); (3), taking the essential oil prepared in step (1), preparing essential oil ethanol solution according to the volume ratio of the essential oil to ethanol of which the weight percent is 100% being 1 to 1; (4) dropwise adding the essential oil ethanol solution prepared in step (3) into the beta-cyclodextrin water solution prepared in step (2), agitating by a constant-temperature magnetic stirrer, enveloping for 1-3 hours at 35-65 DEG C, taking out of the clathrate compound and standing for 24 hours at 2-8 DEG C; and filtering, washing and drying to obtain white powder dry clathrate compound. The clathrate compound disclosed by the invention is good in process repeatability, stable in quality, high in yield, and high in utilization rate of clathrate compound essential oil.

Description

technical field [0001] The invention relates to a method for preparing volatile oil clathrates, in particular to a preparation method for volatile oil clathrates of Torreya arils, and belongs to the field of pesticide preparations. Background technique [0002] Torreya ( Torreya grandis CV. There is a thick fleshy aril on the outside of the seeds of Merrilli, which accounts for about 50% to 60% of the fresh weight of the seeds. Studies have shown that the aril of Torreya torreya contains various volatile oil components such as alcohols, ketones, alkenes, and aldehydes. For a long time, the processed arils of Torreya torreya are discarded, which not only wastes valuable material resources, but also causes serious environmental pollution. The volatile oil of the aril of Torreya sinica has strong volatility, and it is unstable when exposed to light and heat. There are certain limitations in the application of products. However, the formation of clathrates after inclusion wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/44A01N25/26
Inventor 孙小红杜轶君葛建王国夫胡绍泉杨群
Owner SHAOXING UNIV YUANPEI COLLEGE