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Method for subcritical fluid extraction of wolfberry seed oil

A technology of subcritical fluid and wolfberry seed oil, which is applied in the production of edible oil/fat, fat oil/fat, and fat production, can solve the problems of long extraction time, long pressing time of mechanical pressing, and large solvent consumption, etc., to achieve Reduce solvent consumption and energy consumption, shorten extraction and separation time, good safety and repeatability

Inactive Publication Date: 2016-08-24
赵军
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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, high impurity content, poor oil quality, and darker color; the organic solvent extraction method has long extraction time, low efficiency, large solvent consumption, and easy to cause solvent residue in the product and a series of disadvantages; while supercritical fluid extraction has high requirements for equipment, complex process, small equipment volume, high cost, and high energy consumption, so it is not suitable for large-scale industrial continuous production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The method for subcritical fluid extraction of the present invention wolfberry seed oil, it comprises the steps:

[0022] (1) drying or drying the obtained wolfberry seeds after the fresh fruit of wolfberry is squeezed to obtain dried wolfberry seeds;

[0023] (2) The processed Lycium barbarum seeds and extractant-propane are put into subcritical fluid extraction device (the subcritical extraction The device is an existing market-sold extraction and separation device, such as the subcritical extractor produced and sold by Henan Subcritical Biotechnology Co., Ltd. In the extraction kettle, the extraction temperature is 5°C, the extraction pressure is 0.15MPa, the extraction Under the condition of 10L / h, the solvent flow rate was continuously extracted once, each time for 10min, to obtain the extract;

[0024] (3) Using the decompression and heating method to separate the extract at a separation pressure of 0.10 MPa and a separation temperature of 10°C to obtain an extra...

Embodiment 2

[0028] The method for subcritical fluid extraction of the present invention wolfberry seed oil, it comprises the steps:

[0029] (1) drying or drying the obtained wolfberry seeds after the fresh fruit of wolfberry is squeezed to obtain dried wolfberry seeds;

[0030] (2) The treated Lycium barbarum seeds and the extractant-1,1,1,2-tetrafluoroethane are input at a material-solution mass-volume ratio of 1:20 (G / mL) Into the extraction tank of the subcritical fluid extraction device, under the conditions of extraction temperature of 85°C, extraction pressure of 2.95MPa, and extraction agent flow rate of 200L / h, continuous extraction was performed 20 times, each time for 150min, to obtain the extract;

[0031] (3) Using the decompression and heating method to separate the extract under the conditions of a separation pressure of 1.95MPa and a separation temperature of 90°C to obtain an extract; wherein the subcritical fluid extractant changes from a liquid state to a gaseous state ...

Embodiment 3

[0035] The method for subcritical fluid extraction of the present invention wolfberry seed oil, it comprises the steps:

[0036] (1) drying or drying the obtained wolfberry seeds after the fresh fruit of wolfberry is squeezed to obtain dried wolfberry seeds;

[0037] (2) The processed Lycium barbarum seeds and extractant-butane are put into the extraction kettle of the subcritical fluid extraction device according to the material-solution mass volume ratio of 1:5 (Lycium barbarum seed mass: extractant volume ratio) (g / mL) , under the condition that the extraction temperature is 45°C, the extraction pressure is 0.55MPa, and the flow rate of the extractant is 80L / h, continuous extraction is performed 5 times, each time for 40min, to obtain the extract;

[0038] (3) Using the decompression and heating method to separate the extract under the conditions of a separation pressure of 0.20 MPa and a separation temperature of 50° C. to obtain an extract; wherein the subcritical fluid e...

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Abstract

The invention discloses a method for subcritical fluid extraction of wolfberry seed oil. The method comprises 1, sun-drying or baking wolfberry seeds obtained through fresh wolfberry juicing to obtain dry wolfberry seeds, 2, putting the dried wolfberry seeds and an extraction agent into an extraction reactor of a subcritical fluid extraction device according to a material dissolution mass-volume ratio of 1: 1-1: 20 and carrying out continuous extraction 1-20 times, for 10-150min every time, so that extract is obtained, 3, separating the extract in the step 2 through a decompression heating method under separation pressure of 0.10-1.95MPa at a separation temperature of 10-90 DEG C to obtain extract, and 4, standing the extract at the room temperature for 10-90min to obtain wolfberry seed oil. The method effectively reduces a production cost, shortens extraction separation time, reduces solvent consumption and energy consumption in a process, has simple processes, strong operability and high extraction efficiency, is environmentally friendly, has no pollution, has good safety and repeatability and realizes large-scale industrialized continuous production.

Description

technical field [0001] The invention relates to a method for extracting wolfberry seed oil, in particular to a method for extracting wolfberry seed oil with a subcritical fluid. Background technique [0002] Lycium barbarum juice obtained by crushing wolfberry, especially freshly squeezed wolfberry juice obtained by crushing fresh wolfberry, is becoming more and more popular at home and abroad. During the production process of the existing wolfberry juice, wolfberry seeds containing rich nutrients can be obtained. Lycium barbarum seed oil can be obtained after being refined by squeezing or extracting, and the oil yield of wolfberry seed is 17%-20%. Lycium barbarum seed oil contains a large amount of unsaturated fatty acids, VE and phospholipids, among which the content of linoleic acid is as high as 66.5%, the content of VE is 42.02mg / 100g, the content of phospholipids is 0.75%, and the content of β-carotene is 0.73mg / 100g. It is a kind of vegetable oil with great health c...

Claims

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Application Information

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IPC IPC(8): C11B1/10A23D9/02
Inventor 赵军陈宝华
Owner 赵军
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