Productive method for extracting mint volatile oil by microwave irradiation

A technology of peppermint volatile oil and microwave irradiation is applied in the field of plant essential oil extraction, which can solve the problems of high energy consumption, low oil yield and the like, and achieve the effects of low energy consumption, high oil yield and lower production cost.

Inactive Publication Date: 2012-10-10
ANHUI TONGHUI PERFUME
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Problems solved by technology

[0004] In order to solve the problems of low oil yield and high energy consumption in the traditional pr

Method used

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  • Productive method for extracting mint volatile oil by microwave irradiation
  • Productive method for extracting mint volatile oil by microwave irradiation
  • Productive method for extracting mint volatile oil by microwave irradiation

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Experimental program
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Embodiment

[0028] The microwave irradiation extraction method for producing peppermint volatile oil comprises the following steps:

[0029] A. Selection of raw materials

[0030] The mint used was collected from Bozhou, Anhui, and its aerial part was collected in late July 2009, and was identified by the Institute of Botany, Chinese Academy of Sciences.

[0031] B. Extraction of peppermint volatile oil

[0032] The essential oil was extracted from peppermint by microwave irradiation extraction (MAE). Change the soaking time, adjust the microwave power to the set value, and the irradiation time of the microwave, and adjust the amount of the extraction medium added. When the extraction time set in the experiment was reached, negative pressure fractionation was carried out to collect peppermint oil, which was filtered, dried, weighed, and the oil yield was calculated, and the menthol content was determined. A total of 45 components were identified in the volatile oil extracted by microwa...

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Abstract

The invention relates to a productive method used for extracting a mint oil of mentha haplocalys briq. The method comprises the following steps: raw material selection, wherein overground parts of the mint are picked up in every last ten-days period of July in Haozhou region of Anhui province; and mint oil extraction, wherein dry samples of the mint are filled in a container and immersed in n-hexane for 5 hours, then the mixture is irradiated by microwaves for 40 seconds in a microwave generation device, and the mint volatile oil is collected by fractionation with a negative pressure fractionation device. Compared with traditional methods, the method is characterized in that the extraction rate of the mint oil is higher; that compounds contained in the mint oil are more various in kind, which can reflect the real natural fragrance of the mint; and that the extraction time is shorter, with lower energy consumption and costs. By the method, to an extreme extend, not only the oil extraction rate is improved, but also energy saving and emission reduction are realized.

Description

technical field [0001] The invention belongs to the technical field of plant essential oil extraction, and in particular relates to a production process for extracting peppermint oil from Lamiaceae Mentha plants. Background technique [0002] Mint is one of the traditional Chinese medicines commonly used in my country, and it is also an important spice plant. Peppermint oil has the effects of dispelling wind, dissipating heat, and detoxifying. It is used to treat wind-heat cold, headache, red eyes, sore throat, toothache, etc. Peppermint stems and leaves contain volatile oil, the main active ingredient of which is menthol. As a large number of commonly used traditional Chinese medicines, there are more than 40 commonly used Chinese patent medicines containing peppermint, peppermint oil and menthol recorded in the Pharmacopoeia of the People's Republic of China (a 2010 edition). Peppermint oil and menthol are widely used in medicine and health, daily chemical industry, food...

Claims

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Application Information

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IPC IPC(8): C11B9/02
Inventor 许化学
Owner ANHUI TONGHUI PERFUME
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