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Method for preparing eugenol from clove oil plant

A technology of eugenol and clove oil, which is applied in ether preparation, ether separation/purification, organic chemistry, etc., and can solve the problems of low extraction rate and long time

Inactive Publication Date: 2014-05-28
王喜军 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing this technology, its main shortcoming is that time is long, and extraction rate is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 1. Pulverize 100 grams of clove raw materials to 5-10 mesh, add 10 times the amount of 90-120# petroleum ether to the extractor, control the temperature at 85°C, and stir and extract for 3 hours, a total of 3 times;

[0018] 2. Combine the total extracts, concentrate under reduced pressure and vacuum to recover the solvent to obtain 18.2 g of black-brown clove oil.

[0019] 3. Add 5 times the amount of 10% ammonium hydroxide alkaline aqueous solution to 100 grams of clove oil, stir at a constant temperature of 75 ° C for 3 hours and then stand for stratification, remove the oil layer of the alkaline aqueous phase and collect it for later use;

[0020] 4. Add 5% of the total volume of activated clay to the alkaline water layer, filter and separate the activated clay after stirring for 30 minutes, gradually add 50% of hydrochloric acid to the filtrate, adjust the pH to 6-7, and separate and precipitate eugenol in the solution. The specific gravity of eugenol is relatively...

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PUM

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Abstract

The invention relates to a method for preparing eugenol from a clove oil plant, specifically to a method for preparing eugenol from clove oil extracted from a syringe plant, and belongs to the biochemical field. The invention relates to a simple, practical and efficient extraction method. Through HPLC detection, the content of the eugenol product extracted by the method reaches more than 98%.

Description

1. Technical field [0001] The invention relates to a method for preparing eugenol from clove oil, in particular to a method for preparing eugenol from clove oil extracted from clove oil, and belongs to the field of biochemical industry. 2. Background technology [0002] Lilac belongs to Oleaceae, with about 27 species of plants in the whole family. It is naturally distributed in East Asia, Central Asia and Europe; it is mainly distributed in subtropical and subalpine mountains, hillside forest edges from warm temperate to temperate, underforest and sunny shrubs in cold temperate zone. . Eugenol is a product isolated from essential oils prepared from syringa plants. Eugenol naturally exists in a variety of essential oils, including camphor oil, acacia oil, violet oil, and ylang-ylang oil. Eugenol mainly exists in the oil of clove basil (Oci-mum gratissimum L) and the oil of cinnamon leaves of the genus Cinnamomum 80%), bay leaf oil (80%), clove basil oil (60%). Eugenol has...

Claims

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Application Information

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IPC IPC(8): C07C43/23C07C41/34
CPCC07C41/34C07C43/23
Inventor 王喜军李海军
Owner 王喜军
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