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Preparation and purification method for plant linoleic acid

A technology of linoleic acid and plants, which is applied in the field of preparation of Chinese herbal medicine mulberry seed oil, can solve the problems of easy destruction of active ingredients, low production efficiency, complicated process, etc., and achieve high product yield, high production efficiency and simple process Effect

Inactive Publication Date: 2005-04-13
WUHAN BOTANICAL GARDEN CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

The above methods have the disadvantages of complex process, long period, low extraction rate, poor selectivity, easy destruction of active ingredients, and low production efficiency.

Method used

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Experimental program
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Effect test

Embodiment Construction

[0021] A preparation method of mulberry seed oil, the steps are as follows:

[0022] (1) Raw material preparation of mulberry fruit: bake 1kg mulberry fruit in an oven at 60°C for 6 hours (loss on drying ≤ 10%), crush through 10 or 15 or 20 mesh sieves to obtain mulberry powder.

[0023] (2) System preparation and feeding: the extraction chamber, analysis chamber A, analysis chamber B and cold box are heated or cooled respectively, and the temperature of the extraction chamber is adjusted to 50 or 55 or 60°C; the temperature of the analysis chamber A is 35 or 40 or 45 or 48 or 49.8°C; the temperature of the analysis room B is 30 or 35 or 42 or 44 or 45.9°C; the temperature of the cold box is 4°C, and the powder of the fruit is put into the supercritical extraction chamber.

[0024] (3) Supercritical extraction to prepare mulberry seed oil: open the CO 2 Gas bottle, pressurize the extraction chamber, analysis chamber A, and analysis chamber B through the compression pump, so t...

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Abstract

The plant linolic acid preparing and purifying process includes the following steps: stoving and crushing paper mulberry fruit and sieving to obtain paper mulberry fruit powder; preparing supercritical CO2 extracting system and feeding paper mulberry fruit powder to supercritical CO2 extracting system; extracting to obtain paper mulberry fruit oil; preparing system and feeding material; regulating rotation speed, flow rate and vacuum degree, and distilling to eliminate low boiling point component; distilling in molecular distillatory at certain temperature, vacuum degree and rotor speed to obtain coarse linolic acid; and distilling in molecular distillatory at regulated temperature, vacuum degree and rotor speed to obtain refined linolic acid. The product has linolic acid content of 78-82 5 and the process has yield of 36-41 %.

Description

technical field [0001] The invention relates to a preparation method of Chinese herbal medicine mulberry seed oil, and also relates to a purification method of vegetable oil and unsaturated fatty acid. The fatty oil is mainly used in medicine, food, cosmetics and other industries. Background technique [0002] Chushizi is the dry and mature fruit of the Moraceae plant Broussonetia papyrifera (L.) Vent., which is distributed in North China, Northwest China, East China, Central South, Southwest China and Liaoning. It has the effects of invigorating the kidney, clearing the liver, improving eyesight, and diuresis. It is clinically used to treat soreness and weakness of the waist and knees, fatigue and bone steaming, dizziness, eye membranes, edema, and swelling. It can also treat stubborn ringworm, neurodermatitis, eczema, etc. skin disease. "Famous Doctors" is listed as top grade: sweet, cold, non-toxic. Ancient materia medica records that Chushizi ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11C1/10
Inventor 袁晓袁萍
Owner WUHAN BOTANICAL GARDEN CHINESE ACAD OF SCI
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