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Solvent-free extraction method of lemon essential oil

A technology of lemon essential oil and extraction method, which is applied in the direction of essential oil/fragrance, fat production, etc., can solve the problems of high technical requirements and difficult operation, high cost of supercritical extraction, and low purity of pressing method, so as to achieve easy availability of raw materials and keep natural The effect of high quality and short heating time

Active Publication Date: 2014-07-02
广东添乐化妆品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pressing method has low purity; the solvent method is mostly used in scientific research; supercritical extraction is costly and technically demanding and difficult to operate
At present, most enterprises usually use steam distillation. By improving equipment and optimizing extraction process conditions, high-purity essential oils can be obtained. This method is low in cost and simple in operation, but the extraction efficiency is low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] In the present embodiment, the solvent-free extraction method of lemon essential oil comprises the following steps successively:

[0021] (1) Raw material pretreatment: wet the clean dried lemon peel with water and then pulverize it to obtain lemon peel fragments; the water content of the above lemon peel fragments is 26% (by weight);

[0022] (2) Put 200 grams of lemon peel fragments obtained in step (1) in a microwave extraction device (you can place the lemon peel fragments in a flask, and then place the lemon peel fragments together with the flask in a microwave extraction device). Microwave radiation is applied to the peel fragments, and the generated essential oil vapor is collected and condensed to obtain crude lemon essential oil;

[0023] The method of applying microwave radiation is intermittent, and the process is as follows: microwave radiation treatment for 2.5 minutes (the power of microwave radiation is 250 watts), an interval of 6 minutes, and then micro...

Embodiment 2

[0029] In the present embodiment, the solvent-free extraction method of lemon essential oil comprises the following steps successively:

[0030] (1) Raw material pretreatment: wet the clean dried lemon peel with water and then pulverize it to obtain lemon peel fragments; the water content of the above lemon peel fragments is 35% (by weight);

[0031] (2) Put 40 grams of lemon peel fragments obtained in step (1) in a microwave extraction device (you can place the lemon peel fragments in a flask, and then place the lemon peel fragments together with the flask in a microwave extraction device). Microwave radiation is applied to the peel fragments, and the generated essential oil vapor is collected and condensed to obtain crude lemon essential oil;

[0032] The method of applying microwave radiation is intermittent, and the process is as follows: microwave radiation treatment for 40 seconds (the power of microwave radiation is 360 watts), an interval of 5 minutes, and then microwa...

Embodiment 3

[0038] In the present embodiment, the solvent-free extraction method of lemon essential oil comprises the following steps successively:

[0039] (1) Raw material pretreatment: crush clean fresh lemon peel to obtain lemon peel fragments; the water content of the lemon peel fragments is 42% (by weight).

[0040] (2) Put 40 grams of lemon peel fragments obtained in step (1) in a microwave extraction device (you can place the lemon peel fragments in a flask, and then place the lemon peel fragments together with the flask in a microwave extraction device). Microwave radiation is applied to the peel fragments, and the generated essential oil vapor is collected and condensed to obtain crude lemon essential oil;

[0041]The method of applying microwave radiation is intermittent, and the process is as follows: microwave radiation treatment for 90 seconds (the power of microwave radiation is 360 watts), an interval of 4 minutes, and then microwave radiation treatment for 30 seconds (the...

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Abstract

The invention relates to a solvent-free extraction method of lemon essential oil. The extraction method sequentially comprises the following steps: (1) crushing clean fresh lemon peel, or wetting clean dry lemon peel with water, and then, crushing, so as to obtain lemon peel debris; (2) putting the lemon peel debris into a microwave extraction device, applying microwave radiation to the lemon peel debris, and collecting generated essential oil vapor and condensing, so as to obtain crude lemon essential oil, wherein the manner of microwave radiation applying is intermittent and comprises the processes of carrying out one-time microwave radiation treatment, then, intermitting, and then, carrying out next-time microwave radiation treatment, and repetitively operating in such a manner; (3) separating impurities from the crude lemon essential oil, thereby obtaining the lemon essential oil. The extraction method disclosed by the invention has the advantages of environmental friendliness, rapidness, energy saving and the like, and is less in environmental pollution, easy in raw material obtaining, simple in process, convenient in operation, low in energy consumption, low in cost and high in efficiency; the prepared lemon essential oil is free from organic solvent residues and is high in quality and high in purity, and the natural quality of the lemon essential oil is kept.

Description

technical field [0001] The invention relates to a method for extracting essential oil from plant raw materials, in particular to a solvent-free extraction method of lemon essential oil, that is, a method for extracting lemon essential oil from lemon peel under solvent-free conditions. Background technique [0002] The biologically active ingredients extracted from plants are natural and environmentally friendly, and have no or little side effects for long-term use. They have been successfully used in skin care, whitening, anti-aging and other cosmetic fields. Compared with traditional cosmetics, plant-derived active ingredients are more easily absorbed and digested by the skin, with obvious curative effects, strong pertinence, and no deposition in the body. The research and development of cosmetics using active ingredients in plant extracts is a hot spot and trend in the cosmetics industry at present, and will also become the leading force in the cosmetics industry in the fu...

Claims

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Application Information

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IPC IPC(8): C11B9/02
Inventor 魏威宏
Owner 广东添乐化妆品有限公司
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