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A kind of extraction method of peppermint oil

An extraction method, peppermint oil technology, applied in the direction of essential oils/fragrances, fat production, etc., can solve the problem of low, usually between 0.8%-0.9%, will not exceed 1.0%, to achieve low requirements, operation Simple, yield-enhancing effects

Active Publication Date: 2017-06-16
DOUBLE RIDER MEDICINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the menthol yield of peppermint oil extracted by steam distillation is low, usually between 0.8% and 0.9%, and will not exceed 1.0%.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A method for extracting peppermint oil, comprising the steps of:

[0017] (1) In parts by weight, take 5 parts of dried mint plants, pulverize them with a pulverizer, put them into a volatile oil extractor, add 15 parts of petroleum ether and 5 parts of ethanol, and soak for 2 hours at room temperature;

[0018] (2) Then add 50 parts of pure water to the volatile oil extractor, and extract in circulation for 4 hours at 80-100°C;

[0019] (3) Cooling and filtering, adding 5 parts of petroleum ether, 2 parts of ethanol, and 20 parts of pure water to the filter residue, at 80-100 ° C, cyclic extraction for 0.5 hours;

[0020] (4) Filter again, discard the filter residue, combine the two filtrates, transfer to a rotary evaporator, evaporate petroleum ether and ethanol, and collect peppermint oil.

[0021] A method for extracting peppermint oil, wherein the specification of the boiling range of the petroleum ether is 60-90°C.

Embodiment 2

[0023] A method for extracting peppermint oil, comprising the steps of:

[0024] (1) In parts by weight, take 8 parts of dried mint plants, crush them with a pulverizer, put them into a volatile oil extractor, add 25 parts of petroleum ether and 8 parts of ethanol, and soak for 3 hours at room temperature;

[0025] (2) Add 65 parts of pure water to the volatile oil extractor, and extract in circulation for 5 hours at 80-100°C;

[0026] (3) Cooling and filtering, adding 8 parts of petroleum ether, 4 parts of ethanol, and 25 parts of pure water to the filter residue, at 80-100 ° C, cycle extraction for 1 hour;

[0027] (4) Filter again, discard the filter residue, combine the two filtrates, transfer to a rotary evaporator, evaporate petroleum ether and ethanol, and collect peppermint oil.

[0028] A method for extracting peppermint oil, wherein the specification of the boiling range of the petroleum ether is 60-90°C.

Embodiment 3

[0030] A method for extracting peppermint oil, comprising the steps of:

[0031] (1) In parts by weight, take 10 parts of dried mint plants, pulverize them with a pulverizer, put them into a volatile oil extractor, add 30 parts of petroleum ether and 10 parts of ethanol, and soak for 4 hours at room temperature;

[0032] (2) Add 80 parts of pure water to the volatile oil extractor, and extract in circulation for 6 hours at 80-100°C;

[0033] (3) Cooling and filtering, adding 10 parts of petroleum ether, 5 parts of ethanol, and 30 parts of pure water to the filter residue, at 80-100 ° C, circulating extraction for 1.5 hours;

[0034] (4) Filter again, discard the filter residue, combine the two filtrates, transfer to a rotary evaporator, evaporate petroleum ether and ethanol, and collect peppermint oil.

[0035] A method for extracting peppermint oil, wherein the specification of the boiling range of the petroleum ether is 60-90°C.

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PUM

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Abstract

The invention discloses a peppermint oil extraction method. The peppermint oil extraction method has low requirement for equipment, is simple to operate and is suitable for industrial production. Through trial of matching of petroleum ether, ethyl alcohol and water, peppermint oil extraction is facilitated by polarity of an obtained mixed solution, and the yield of menthol is increased; compared with a traditional steam distillation method, the peppermint oil extraction method has the advantage that the yield of peppermint oil and the yield of menthol are remarkably increased.

Description

technical field [0001] The invention belongs to the technical field of extraction methods of Chinese herbal medicines, in particular to a method for extracting peppermint oil. Background technique [0002] Peppermint oil is the volatile oil extracted from the Lamiaceae plant Peppermint (Mentha hap localyx Briq). The plant is widely distributed in the temperate regions of the northern hemisphere, and is widely distributed in the northern and southern provinces of my country. Peppermint used to be unified with the scientific name M. arvensis L, Chinese taxonomists adopted Boriss' opinions on the processing of Mentha, and combined with its morphological characteristics and geographical differentiation trends, it can be divided into two major populations, namely, the populations of Mentha in Europe, West Asia and North America M. arvensis L, Mint populations of East and Tropical Asia M. haplocalyxBri. Most of the mint varieties cultivated in my country belong to the latter. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B9/02
CPCC11B9/022C11B9/025
Inventor 曹正洪吴九妹
Owner DOUBLE RIDER MEDICINE CO LTD
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