Method for extracting essential oil from fresh tissues of plants

A kind of organizational and fresh technology, applied in the field of chemical engineering, to achieve the effect of convenient operation, low investment in equipment, and little influence on chemical structure

Inactive Publication Date: 2011-10-12
SUBTROPICAL CROPS INST OF FUJIAN PROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a method for extracting essential o

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] EXAMPLE 1 Extraction of olive fresh pericarp essential oil.

[0023] First, remove the core of the olive fruit, weigh it, put it into a multifunctional juicer, and directly homogenize it.

[0024] Transfer 40g of the homogenized tissue of the olive fruit into a centrifuge tube, add 10g of extraction solvent 30-60° petroleum ether; use an ultrasonic generator (trough type) without a horn, ultrasonic power is 200KW, ultrasonic for 3 seconds, the interval 2 seconds, the time is 30 minutes. During the ultrasonic treatment, the homogenized tissue was slightly heated, and the viscosity became larger. A small amount of the interface between the petroleum ether layer and the homogenized tissue was mixed together, but the petroleum ether layer and the homogenized tissue were still clearly separated.

[0025] The viscous liquid was centrifuged with a centrifuge at a speed of 4000 rpm, and the upper layer of the extract was taken out, and the organic solvent was removed from the ...

Embodiment 2

[0032] EXAMPLE The extraction of the essential oil of the fresh leaves of the olive.

[0033] Collect the leaves of Papaya olives, wash and dry them, put them into a multifunctional juicer, and directly homogenize them.

[0034] Transfer 50g of the leaf homogenate tissue of Papaya olive into a centrifuge tube, add 10g of extraction solvent 30-60° petroleum ether; use an ultrasonic generator (trough type) without a horn, ultrasonic power is 200KW, ultrasonic 3 seconds, interval 2 seconds, the time is 30 minutes. During the ultrasonic treatment, the homogenized tissue was slightly heated, and the viscosity became larger. A small amount of the interface between the petroleum ether layer and the homogenized tissue was mixed together, but the petroleum ether layer and the homogenized tissue were still clearly separated.

[0035] The viscous liquid was centrifuged with a centrifuge at a speed of 5000 rpm, and the upper layer of the extract was taken out, and the organic solvent was...

Embodiment 3

[0038] EXAMPLES The extraction of the essential oil of the fresh pericarp of the three palm olives.

[0039] First, remove the core of the olive fruit and weigh it, put it into a multifunctional juice extractor, add distilled water in a ratio of 1:0.5, stir for 5 minutes, and then homogenate.

[0040] Transfer 40g of the homogenized tissue of the olive fruit into a centrifuge tube, add 10g of extraction solvent 30-60 degrees petroleum ether; put the horn of the ultrasonic generator into the centrifuge tube, and place the port of the horn between the petroleum ether and the homogenized tissue At the 0.3cm of the interface, the ultrasonic power is 200KW, the ultrasonic is 3 seconds, the interval is 2 seconds, and the time is 30 minutes. During the ultrasonic treatment, the homogenized tissue was slightly heated, and the viscosity became larger, and the petroleum ether layer and the homogenized tissue were completely mixed together.

[0041] The viscous liquid was centrifuged wi...

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Abstract

The invention discloses a method for extracting essential oil from fresh tissues of plants, which comprises the following steps of: 1, adding a certain proportion of distilled water into the fresh tissues of the plants and then carrying out breaking and homogenate; 2, placing the product in the step 1 in a container, and adding an extracting agent, i.e., 30 to 60 DEG C petroleum ether, wherein the volume ratio of the petroleum ether to homogenate tissues is 1: (3-5); 3, placing an amplitude transformer of an ultrasonic wave generator in a long container for ultrasonic extraction; 4, separating a mixed liquor obtained in the step 3 by using a centrifugal machine with the speed of 3000 to 6000 turn/m, and taking a supernatant liquid; 5, decompressing the extracting liquid in the step 4 in a constant temperature water bath so as to remove an organic solvent, and obtaining oil; and 6, dewaxing the oil to obtain the essential oil. According to the method disclosed by the invention, the collection and extraction of oil components in the fresh tissues of the plants can be realized in one step; and few natural aroma of the prepared essential oil product is lost.

Description

technical field [0001] The invention relates to the field of chemical engineering, and specifically designs a method for extracting essential oil components from fresh plant tissues. Background technique [0002] At present, the extraction methods of vegetable oily components include steam distillation, solvent extraction, pressing, and supercritical liquid extraction. Because the steam distillation method needs to be heated at about 100°C for a long time, some heat-sensitive substances are easily destroyed; while the single solvent extraction method, for fresh plant tissues, due to the interfacial affinity between the water phase and the non-polar organic solvent The extraction effect is not good due to its poor performance; the pressing method is suitable for fresh plant tissues, but the product contains water, mucus, etc., and needs further processing; the supercritical fluid extraction method is widely applicable, but the equipment is expensive and requires a large inves...

Claims

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Application Information

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IPC IPC(8): C11B9/02
Inventor 林春松徐夙侠
Owner SUBTROPICAL CROPS INST OF FUJIAN PROVINCE
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