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Preparation method for extracting garlic essential oil from crude garlic oil

A technology of garlic essential oil and garlic oil, which is applied in the direction of essential oil/spice, fat production, etc., can solve the problems of low product purity and obstacles to the production, development and application of garlic essential oil, and achieve significant economic benefits, simple methods, and easy operation.

Inactive Publication Date: 2012-05-23
张亚娟
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Problems solved by technology

However, there are still many technical problems in extracting garlic flavor substances in current production, and the product purity is low, only about 60%, which seriously hinders the production of garlic essential oil and the development and application of related fields, and there is no good solution so far

Method used

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Embodiment

[0011] A preparation method for separating and extracting garlic essential oil from crude garlic oil, using a molecular distillation apparatus to separate and purify garlic essential oil by means of molecular distillation, characterized in that the steps are as follows:

[0012] (1) Select crude garlic oil for primary molecular distillation, the optimal process parameters are: distillation temperature is 50°C, vacuum degree 200Pa, film scraping speed 200rpm; gained garlic oil is subjected to next-stage molecular distillation;

[0013] (2) the above-mentioned gained garlic oil is 45 DEG C again at distillation temperature, and vacuum tightness 150Pa, carries out second stage separation under the condition of scraping film rotating speed 200rpm, and gained garlic oil carries out next stage molecular distillation;

[0014] (3) Carry out the third and fourth stages of separation of the above-mentioned gained garlic oil at a distillation temperature of 30° C., a vacuum of 50 Pa, and...

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Abstract

The present invention relates to a garlic essential oil, specifically to a preparation method for separating and extracting a garlic essential oil from a crude garlic oil, and belongs to the field of fine chemical engineering. According to the method, the crude garlic oil is selected, a molecular distillation apparatus and a molecular distillation method are adopted to separate and extract the garlic essential oil. The method for separating and extracting the garlic essential oil is simple, and is easy to operate. After repeated distillation purification, the garlic essential oil is obtained, and significant economic benefits are provided, wherein the purities of the diallyl disulfide (DADs) and the diallyl trisulfide (DATs) in the garlic essential oil are 85.03%.

Description

technical field [0001] The invention relates to a garlic essential oil, in particular to a preparation method for separating and extracting garlic essential oil from crude garlic oil, belonging to the fine chemical industry field. Background technique [0002] With the rapid development of social economy, people's living standards continue to improve, and the awareness of health care is also increasing. Garlic is known as a broad-spectrum fungicide. It has a unique spicy taste, and more importantly, it has a broad-spectrum bactericidal effect. However, garlic has a very strong pungent taste, making it difficult to carry and eat in public. Garlic flavor substances are commonly known as garlic essential oil (Garlic Essential Oil). Due to its various pharmacological effects, it sells very well in the international market, and the supply of products exceeds demand, and the higher the purity, the more expensive it is. However, there are still many technical problems in extracti...

Claims

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Application Information

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IPC IPC(8): C11B9/02
Inventor 张亚娟
Owner 张亚娟
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