CN103911215A - Method for refining of plant essential oil - Google Patents

Abstract

The invention provides a method for refining of plant essential oil. The method is characterized by comprising the steps of: 1) taking plant materials and conducting mixing in proportion, then adding purified water according to a weight ratio of 1:30; 2) raising the temperature of water bath to 40-60DEG C, and keeping the state stable for 15min; 3) adding mixed enzymes of pectinase and cellulase, with the adding amount being 1%-3% of the weight of the plant materials, maintaining the temperature, and slowly carrying out stirring reaction for 3-6h; 4) taking the mixed solution and performing filtration, and taking the clear liquid; and 5) performing low temperature freeze-drying concentration to obtain a plant essential oil crude extract, and then conducting the next step purification. The pectinase and the cellulase are in a weight ratio of 1:3-1:5. The method provided by the invention selects biological enzymes to break cell walls and degrade plant fiber, so that the plant materials can fully dissolve out, and no organic reagent is mixed. The obtained plant extract has higher purity, and the extraction time is shorter.

Description

A kind of process for extracting of plants essential oil

Technical field

The present invention relates to a kind of process for extracting of plants essential oil.

Background technology

Essential oil, especially plants essential oil, be known as " hormone of plant ", can play multiple effect, according to plant difference, releive in addition spirit, help sleep, go acne to remove the multiple effects such as spot, but the refinement of plants essential oil is the method that uses organic reagent extraction always, does not still reach so far purity demand, the organic reagent mixing, can affect essential oil performance effect.

Summary of the invention

The object of this invention is to provide a kind of pure natural, the process for extracting of plants essential oil fast.

For realizing above-mentioned goal of the invention, technical scheme of the present invention is as follows:

A process for extracting for plants essential oil, is characterized in that: comprise the steps:

1) get vegetable material, proportionally mix, add pure water according to the ratio of weight ratio 1:30;

2) warming-in-water, to 40-60 DEG C, keeps stablizing 15min;

3) add the mixed enzyme of polygalacturonase, cellulase, addition is the 1%-3% of vegetable material weight, holding temperature, slowly stirring reaction 3-6h;

4) get mixed solution and filter, get clear liquid;

5) low-temperature freeze drying is concentrated, obtains plants essential oil crude extract, then carries out next step ground and purify.

The part by weight of described polygalacturonase and cellulase is 1:3-1:5.

The invention has the beneficial effects as follows: this extracting method is selected biological enzyme, crack cell walls, degrading plant fiber, make the abundant stripping of vegetable material, and do not mix any organic reagent, the plant milk extract purity obtaining is higher, and extraction time shortens.

Embodiment

Below principle of the present invention and feature are described, example, only for explaining the present invention, is not intended to limit scope of the present invention.

Embodiment 1

A process for extracting for plants essential oil, comprises the steps:

1) get vegetable material 200g, proportionally mix, add pure water according to the ratio of weight ratio 1:30;

2) warming-in-water to 40 DEG C, keeps stablizing 15min;

3) add the mixed enzyme of polygalacturonase, cellulase, addition is the 1%-3% of vegetable material weight, holding temperature, slowly stirring reaction 6h;

4) get mixed solution and filter, get clear liquid;

5) low-temperature freeze drying is concentrated, obtains plants essential oil crude extract, then carries out next step ground and purify.

The part by weight of described polygalacturonase and cellulase is 1:3.

The foregoing is only preferred embodiment of the present invention, be not limited to the present invention, within the spirit and principles in the present invention all, any amendment of making and be equal to replacement, within all should being included in protection scope of the present invention.

Claims (2)

1. a process for extracting for plants essential oil, is characterized in that: comprise the steps:

1) get vegetable material, proportionally mix, add pure water according to the ratio of weight ratio 1:30;

2) warming-in-water, to 40-60 DEG C, keeps stablizing 15min;

3) add the mixed enzyme of polygalacturonase, cellulase, addition is the 1%-3% of vegetable material weight, holding temperature, slowly stirring reaction 3-6h;

4) get mixed solution and filter, get clear liquid;

5) low-temperature freeze drying is concentrated, obtains plants essential oil crude extract, then carries out next step ground and purify.

2. the method for purification of a kind of plants essential oil according to claim 1, is characterized in that: the part by weight of described polygalacturonase and cellulase is 1:3-1:5.