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Peppermint essential oil extraction method

An extraction method, the technology of peppermint essential oil, applied in the direction of fat oil/fat production, fat generation, etc., can solve the problems of reducing the quality of essential oil, affecting the quality of essential oil, and difficult temperature control, etc., to achieve improved oil yield and extraction rate, and good crushing effect , the effect of less solvent consumption

Inactive Publication Date: 2018-02-02
安徽恒达药业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with this method, during the crushing process of peppermint slices, because of the difficulty in temperature control, the peppermint essential oil is oxidized, which greatly reduces the quality of the essential oil; moreover, the extracted peppermint essential oil has more free fatty acids, resulting in acid value Too high, thus affecting the quality of essential oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method for extracting peppermint essential oil, comprising the following steps:

[0020] (1) Wash the mint and cut it into small pieces, lay it flat in a cool place with a thickness of 2cm, spray the surface with a volume fraction of 0.3% sodium glycerophosphate solution once a day, and the dosage is 100g / m 2 , turn the mint slices;

[0021] (2) After 4 days, put the mint slices into a pulverizer to crush them, and pass through a 60-mesh sieve;

[0022] (3) Put the dry powder into a vacuum freeze dryer and dry until there is no moisture;

[0023] (4) Put mint dry powder into n-hexane solution 3 times its weight, and add sodium dodecyl lysine 0.01 times its weight of n-hexane;

[0024] (5) Under the environment of 50°C, ultrasonic-assisted extraction was used. After 60 minutes, the extract was filtered, and the organic solvent was recovered from the filtrate under reduced pressure to obtain peppermint essential oil.

[0025] Preferably, the sodium glycerophosphate i...

Embodiment 2

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

[0031] (1) Wash the mint and cut it into small pieces, lay it flat in a cool place with a thickness of 2cm, spray the surface with a volume fraction of 0.3% sodium glycerophosphate solution once a day, and the dosage is 110g / m 2 , turn the mint slices;

[0032] (2) After 4 days, put the mint slices into a pulverizer to crush them, and pass through a 60-mesh sieve;

[0033] (3) Put the dry powder into a vacuum freeze dryer and dry until there is no moisture;

[0034] (4) Put mint dry powder into n-hexane solution 3.5 times its weight, and add sodium dodecyl lysine 0.02 times its weight in n-hexane;

[0035] (5) Under the environment of 50°C, ultrasonic-assisted extraction was used. After 65 minutes, the extract was filtered, and the organic solvent was recovered from the filtrate under reduced pressure to obtain peppermint essential oil.

[0036] Preferably, the sodium glycerophosphate...

Embodiment 3

[0041] A method for extracting peppermint essential oil, comprising the following steps:

[0042] (1) Wash the mint and cut it into small pieces, lay it flat in a cool place with a thickness of 2cm, spray the surface with a volume fraction of 0.3% sodium glycerophosphate solution once a day, and the dosage is 120g / m 2 , turn the mint slices;

[0043] (2) After 4 days, put the mint slices into a pulverizer and crush them, and pass through a 70-mesh sieve;

[0044] (3) Put the dry powder into a vacuum freeze dryer and dry until there is no moisture;

[0045] (4) Put mint dry powder into n-hexane solution 3-4 times its weight, and add sodium dodecyl lysine 0.03 times its weight into it;

[0046] (5) Under the environment of 50°C, ultrasonic-assisted extraction was used. After 70 minutes, the extract was filtered, and the organic solvent was recovered from the filtrate under reduced pressure to obtain peppermint essential oil.

[0047] Preferably, the sodium glycerophosphate in...

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Abstract

The invention discloses a peppermint essential oil extraction method. The method includes the steps of 1), cleaning and cutting peppermint into small pieces prior to spreading out the small pieces inthe shade with the thickness of 2cm, spraying a sodium glycerophosphate solution 0.3% in volume fraction on the surface of the small pieces once a day with the amount of 100-120g / m<2>, and turning over the peppermint pieces; 2), after 4 days, placing the peppermint pieces in to a grinder for grinding; 3), putting dry powder into a vacuum freezing type dryer to be dried completely; 4), placing thepeppermint dry powder into a hexane solution with the weight of 3-4 times as heavy as the peppermint dry powder, and adding sodium dodecyl lysine with the weight of 001-0.03 times as heavy as the hexane solution; 5), at the environment of 50DEG C, performing auxiliary extraction by adopting ultrasonic, extracting a filtrate after 60-70 minutes, and recovering an organic solution from the filtratein decompression to obtain peppermint essential oil. The extraction method has the advantages of short extraction time, less dosage of the solvent, high extraction rate, high solvent recovery, low cost, low investment and the like.

Description

technical field [0001] The invention belongs to the field of peppermint essential oil extraction, and in particular relates to a method for extracting peppermint essential oil. Background technique [0002] Mint is one of the most commonly used and important traditional spice plants with a wide planting area in my country. The upper part of mint can be used as medicine, and the whole plant has a strong refreshing fragrance. plant. Its suitable growth temperature is 20-28°C. In spring, the rhizomes start to germinate when the temperature is 5-8°C. In winter, it can survive the winter safely in areas of -30--20°C. The roots in the soil will not be frostbitten and have tenacious vitality. Widely distributed in temperate regions of the northern hemisphere, mainly in Northeast China, East China and Xinjiang. It is native to the Mediterranean coast and is distributed in the north and south provinces in my country. The earliest record of mint is found in "Tang Materia Medica", wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/04C11B1/10
CPCC11B1/04C11B1/10
Inventor 张涛
Owner 安徽恒达药业有限公司
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