A method for continuous phase change extraction of perilla seed oil

A perilla seed oil and perilla seed technology, which is applied in the direction of fat oil/fat production and fat production, can solve the problems of long extraction time, long pressing time, and large demand for extraction solvents, so as to reduce solvent consumption and energy low consumption, low extraction pressure and analytical pressure, and shortened extraction and separation time

Active Publication Date: 2016-03-09
GREENCREAM BIOTECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mechanical pressing method has long pressing time, low oil yield, many impurities, and poor oil quality; the organic solvent extraction method has a series of problems such as long extraction time, low efficiency, large solvent consumption, and easy to cause solvent residue in the product; and The supercritical fluid extraction method has high requirements for equipment, complex process, small equipment volume, high cost, and high energy consumption, and is not suitable for large-scale industrial continuous production; the patent "A A Subcritical Fluid Extraction Method for Seabuckthorn Seed Oil, using subcritical fluid extraction to extract seabuckthorn seed oil from seabuckthorn seeds, but there are problems such as long extraction time, large demand for extraction solvent, and inability to operate continuously

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: a kind of method of continuous phase change extraction perilla seed oil, comprises the following steps:

[0027] (1) Select high-quality perilla seeds after removing impurities, dry them at a temperature of 50°C, control the moisture content to ≤15%, and crush them to 60 mesh to obtain raw perilla seeds.

[0028] (2) Weigh 10kg of the processed perilla seed raw material, put it into the extraction kettle of the continuous phase change extraction device, feed 25L of n-butane, and under the conditions of extraction temperature 45°C and extraction pressure 0.5Mpa, flow rate The flow rate of 150L / h flows through the extraction kettle, and the continuous extraction lasts for 50min. After the perilla oil is extracted, it flows into the analysis kettle, the analysis temperature is 75°C, and the analysis pressure is 0.1Mpa. The gas is compressed into a liquid and then flows through the extraction kettle to extract the material again for recycling. The extracted p...

Embodiment 2

[0029] Embodiment 2: a kind of method of continuous phase change extraction perilla seed oil, comprises the following steps:

[0030] (1) Select high-quality perilla seeds after removing impurities, dry them at a temperature of 55°C, control the moisture content to ≤10%, and crush them to 40 mesh to obtain raw perilla seeds.

[0031] (2) Weigh 10kg of the processed perilla seed raw material, put it into the extraction kettle of the continuous phase change extraction device, feed 30L of n-butane, and under the conditions of extraction temperature 50°C and extraction pressure 0.6Mpa, flow rate The flow rate of 150L / h flows through the extraction kettle, and the continuous extraction lasts for 70min. After extracting the perilla seed oil, it flows into the analysis kettle, the analysis temperature is 75°C, and the analysis pressure is 0.2Mpa. The gas is compressed into a liquid and then flows through the extraction kettle to extract the material again for recycling. The extracte...

Embodiment 3

[0032] Embodiment 3: a kind of method of continuous phase change extraction perilla seed oil, comprises the following steps:

[0033] (1) Select high-quality perilla seeds after removing impurities, dry them at 60°C, control the water content to ≤10%, and crush them to 40 mesh to obtain raw perilla seeds.

[0034](2) Weigh 10kg of the processed perilla seed raw material, put it into the extraction kettle of the continuous phase-change extraction device, feed 25L of isobutane (R600a), under the conditions of extraction temperature 50°C and extraction pressure 0.6Mpa , flow through the extraction kettle at a flow rate of 120L / h, and continuously extract for 80min. After extracting the perilla seed oil, it flows into the analysis kettle, the analysis temperature is 65°C, and the analysis pressure is 0.3Mpa. (R600a) phase changes into gas, and then becomes liquid through compression, flows through the extraction tank, extracts the material again, and recycles it. The extracted pe...

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PUM

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Abstract

The invention provides a method for extracting fructus perillae oil through continuous phase transition, which comprises the steps of putting the dried ground fructus perillae raw material into an extraction kettle; compressing an extraction agent into liquid under the conditions that the extraction temperature is 35-55 DEG C and the extraction pressure is 0.5-2MPa; enabling the liquid to flow through the extraction kettle at a flow speed of 100-150L / h, and continuously extracting for 50-120 minutes; after extracting the fructus perillae oil, enabling the fructus perillae oil to flow into a resolving kettle, wherein the resolving temperature is 65-75 DEG C, and the resolving pressure is 0.1-0.4MPa; heating and reducing pressure of the extraction agent so that the extraction agent phase is changed into gas; performing intermediate compression to change the gas into liquid which flows through the extraction kettle again, and performing secondary extraction on the material; circulating for multiple times. The method provided by the invention has the advantages of efficient supercritical extraction, no solvent residue in product and high retention rate of aroma components; moreover, the extraction pressure and the resolving pressure are lower than the supercritical values, and the method also has the characteristics of large extraction volume of conventional solvent, large batch treatment capacity, low production cost and the like.

Description

technical field [0001] The invention belongs to the technical field of vegetable oil extraction, in particular to a method for extracting perilla seed oil. Background technique [0002] Perilla frutescens is the dried ripe fruit of Perillafrutescens (L.) Britt. Mainly produced in Hubei, Jiangsu, Hunan, Zhejiang, Anhui, Henan and other places. Perilla seed oil is obtained from the dried and mature fruit of perilla, a plant of the Labiatae family. It is a highly unsaturated natural oil. The main component is α-linolenic acid, with a content as high as 50%-70%. The highest content of this fatty acid of all natural vegetable oils. [0003] Although people have conducted extensive and in-depth research on the functional components, chemical characteristics, and physiological effects of perilla, some difficult problems in its safe and efficient extraction have not been resolved. Specifically, the domestic traditional perilla seed oil processing mode can no longer meet the needs...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B1/10
Inventor 曹庸杨宜婷李双祁
Owner GREENCREAM BIOTECH
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