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Method for preparing separated purified garlic essential oil

A technology for the separation and purification of garlic essential oil, which is applied in the preparation of organic compounds, chemical instruments and methods, organic chemistry, etc., can solve the problems that hinder the production, development and application of garlic essential oil, and the low purity of products, and achieve simple methods, significant economic benefits, easy-to-handle effects

Inactive Publication Date: 2008-09-24
乔旭光
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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

[0014] A preparation method for separating and purifying garlic essential oil, using a molecular distillation apparatus to separate and purify garlic essential oil by means of molecular distillation, is characterized in that: the steps are as follows:

[0015] (1) Select crude garlic oil for primary molecular distillation, the optimal process parameters are: distillation temperature is 50°C, vacuum degree is 200Pa, feed rate is 1.5ml.min-1, film scraping speed is 200rpm; the obtained garlic oil is The next stage of molecular distillation;

[0016] (2) Carry out the second-stage separation of the garlic oil obtained above at a distillation temperature of 45°C, a vacuum degree of 150Pa, a feed rate of 1.5ml.min-1, and a scraping film speed of 200rpm, and the obtained garlic oil is subjected to the next stage molecular distillation;

[0017] (3) Carry out the third-stage separation of the above-mentioned obtained garlic oil at a distillation temperature of 40° C., a vacuum degre...

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Abstract

The present invention relates to a preparation method of garlic essential oil, in particular to a preparation method used for separating and purifying the garlic essential oil, and belongs to the field of fine chemicals. Based on each factor of the separation and purification of the garlic oil, the preparation method adopts the influence of each parameter on the separation and purification of the garlic oil so as to explore the best process of purifying the garlic oil through molecular distillation. In the method, crude garlic oil is selected; a molecular distillation device is used; and the molecular distillation is used for separating and purifying the garlic essential oil. The preparation method has the advantages of simple separation and easy operation. In the prepared the garlic essential oil, the diallyl disulfide (DADs) and diallyl trisulfide (DATs), which are prepared after a plurality of times of distillation and purification, has the purity of 85.03 percent. The economic benefit is quite significant.

Description

technical field [0001] The invention relates to a preparation method of garlic essential oil, in particular to a preparation method of separating and purifying garlic essential oil, which belongs to the field of fine chemical industry. 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 ext...

Claims

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Application Information

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IPC IPC(8): C07C321/18C07C319/28
Inventor 张黎明乔旭光毕艳红
Owner 乔旭光
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