Method for extracting peppermint essential oil

A technology of peppermint essential oil and peppermint, which is applied in the direction of essential oil/fragrance, fat production, etc., to achieve the effects of easy extraction, shortened distillation extraction time, and simple operation

Inactive Publication Date: 2015-10-14
王再青
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a method for extracting pepp

Method used

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  • Method for extracting peppermint essential oil

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Embodiment 1

[0026] A method for extracting peppermint essential oil, comprising the following steps:

[0027] (1) Mechanical activation: Dry mint branches and leaves in the shade to make the water content 8%, take 100kg mint branches and leaves and put them into a vertical stirring ball mill, and mechanically activate at a speed of 500r / min for 8 minutes to obtain mint powder;

[0028] (2) Soaking: Add the above mint powder into the retort, then add 0.5kg of cellulase and water, pressurize the water with a slate so that the water just soaks through the mint powder, soak at room temperature for 3 hours, and obtain the extract;

[0029] (3) Distillation: Water vapor is introduced from the bottom of the distillation tank to heat the extract, and the extract is boiled for 1.5 hours to obtain mixed steam;

[0030] (4) Condensation: the mixed steam obtained above is condensed through a condenser, and an oil-water mixture is obtained after condensation;

[0031] (5) Oil-water separation: the ...

Embodiment 2

[0035] A method for extracting peppermint essential oil, comprising the following steps:

[0036] (1) Mechanical activation: Dry mint branches and leaves in the shade to make the water content 8%, take 100kg mint branches and leaves and put them into a vertical stirring ball mill, and mechanically activate at a speed of 300r / min for 10min to obtain mint powder;

[0037] (2) Soaking: Add the above mint powder into the retort, then add 0.8kg of cellulase and water, pressurize with a stone plate so that the water just soaks through the mint powder, soak at room temperature for 2 hours, and obtain the extract;

[0038] (3) Distillation: Water vapor is introduced from the bottom of the distillation tank to heat the extract, and the extract is boiled and then extracted for 2 hours to obtain mixed steam;

[0039] (4) Condensation: the mixed steam obtained above is condensed through a condenser, and an oil-water mixture is obtained after condensation;

[0040] (5) Oil-water separat...

Embodiment 3

[0044] A method for extracting peppermint essential oil, comprising the following steps:

[0045] (1) Mechanical activation: Dry mint branches and leaves in the shade to make the water content 10%, take 100kg mint branches and leaves and put them into a vertical stirring ball mill, mechanically activate at a speed of 800r / min for 5min to obtain mint powder;

[0046] (2) Soaking: Add the above mint powder into the retort, then add 0.6kg of cellulase and water, pressurize with a stone plate so that the water just soaks through the mint powder, soak at room temperature for 3 hours, and obtain the extract;

[0047] (3) Distillation: Water vapor is introduced from the bottom of the distillation tank to heat the extract, and the extract is boiled for 1.5 hours to obtain mixed steam;

[0048] (4) Condensation: the mixed steam obtained above is condensed through a condenser, and an oil-water mixture is obtained after condensation;

[0049] (5) Oil-water separation: the oil-water mi...

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Abstract

The invention discloses a method for extracting peppermint essential oil. The method comprises the following steps: drying peppermint branches and leaves in the shade, performing mechanical activation treatment at first, then adding cellulase and water to soak for 2-3 hours, then performing distillation extraction for 1.5-2 hours, condensing mixed water vapor obtained after distillation, performing oil-water separation on an oil-water mixture obtained after condensation to obtain peppermint crude oil, and performing extraction separation on the peppermint crude oil to obtain the peppermint essential oil. According to the method, the mechanical activation treatment and soaking with cellulase are performed at first for distillation extraction of the peppermint essential oil, so that the oil yield is improved, and the distillation time is shortened; and the method also has the advantages of simple operation, low cost, high product purity and the like, and is very suitable for industrial production.

Description

technical field [0001] The invention relates to the field of essential oil extraction, in particular to a method for extracting peppermint essential oil. Background technique [0002] Mentha L. is an annual or perennial aromatic herb of the family Lamiaceae. my country is one of the countries with the largest planting area of ​​mint. It can be cultivated all over the country, with Jiangsu, Henan, Anhui and Jiangxi as the main producing areas. . Peppermint essential oil is the main chemical component of peppermint. The fresh leaves of peppermint contain 0.8-1.0% of essential oil, and the dry stems and leaves contain 1.3-2.0% of essential oil. The main chemical components of peppermint essential oil are alcohols, ketones, esters, and terpenes. , Terpenes. Peppermint essential oil has the functions of evacuating wind-heat, clearing heat and relieving the surface, dispelling wind and reducing swelling, relieving sore throat and relieving pain, soothing rashes, soothing the liv...

Claims

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Application Information

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IPC IPC(8): C11B9/02
Inventor 王再青
Owner 王再青
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