Method for extracting black wolfberry seed oil by virtue of subcritical fluid

A technology of subcritical fluid and black wolfberry seeds, which is applied in the direction of fat oil/fat production and fat generation, can solve the problems of long extraction time, long pressing time of mechanical pressing method, and large solvent consumption, so as to reduce solvent consumption and Energy consumption, shortened extraction and separation time, good safety and repeatability

Inactive Publication Date: 2015-12-02
QINGHAI TIBET BIOTECH CO LTD
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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 black wolfberry seed oil, it comprises the steps:

[0022] (1) Put the dried black wolfberry seeds and extractant-propane into the subcritical fluid extraction device (the The critical extraction device is an existing market-sold extraction and separation device, such as the subcritical extraction instrument produced and sold by Henan Subcritical Biotechnology Co., Ltd.) in the extraction kettle, at an extraction temperature of 5°C and an extraction pressure of 0.15MPa 1. Extract continuously once under the condition that the extractant flow rate is 10L / h, each time for 10min, to obtain the extract;

[0023] (2) Use the method of decompression and heating to separate the extract under the condition of separation pressure of 0.10MPa and separation temperature of 10°C to obtain the extract; wherein the subcritical fluid extractant changes from liquid state to gaseous state and is recycled;

[0024] (3) ...

Embodiment 2

[0026] The method for subcritical fluid extraction of the present invention black wolfberry seed oil, it comprises the steps:

[0027] (1) Dissolve dried black wolfberry seeds and extractant-1,1,1,2-tetrafluoroethane at a mass volume ratio of 1:20 (mass of black wolfberry seeds: extractant volume ratio) (g / mL ) into the extraction kettle of the subcritical fluid extraction device, and continuously extract 20 times under the conditions of extraction temperature of 85°C, extraction pressure of 2.95MPa, and extraction agent flow rate of 200L / h, each time for 150min, to obtain the extract;

[0028] (2) Using the method of decompression and heating, the extract is separated under the condition of separation pressure of 1.95MPa and separation temperature of 90°C to obtain the extract; the subcritical fluid extractant changes from liquid state to gaseous state and is recycled;

[0029] (3) After the extract was left to stand at room temperature for 30 minutes, black wolfberry seed oi...

Embodiment 3

[0031] The method for subcritical fluid extraction of the present invention black wolfberry seed oil, it comprises the steps:

[0032] (1) Put the dried black wolfberry seeds and extractant-butane into the subcritical fluid extraction device for extraction at a material-solution mass-volume ratio of 1:5 (black wolfberry seed mass:extractant volume ratio) (g / mL) In the kettle, under the conditions of extraction temperature of 45°C, extraction pressure of 0.55MPa, and extractant flow rate of 80L / h, continuous extraction was performed 5 times, each time for 40min, to obtain the extract;

[0033] (2) Use the method of decompression and temperature rise to separate the extract under the condition of separation pressure of 0.20MPa and separation temperature of 50°C to obtain the extract; wherein the subcritical fluid extractant changes from liquid state to gaseous state and is recycled;

[0034] (3) After the extract was left to stand at room temperature for 40 minutes, black wolfbe...

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Abstract

The invention discloses a method for extracting black wolfberry seed oil by virtue of subcritical fluid. The method comprises the steps: (1) placing dry black wolfberry seeds and an extracting agent into an extraction kettle of a subcritical fluid extraction apparatus according to a mass-volume ratio of 1:1 to 1: 20, continuously extracting for 1 to 20 times to obtain extract, wherein the extraction time is 10 to 15 minutes per time; (2) separating the extract in the step (1) by utilizing a pressure reduction heating method under the condition that the separation pressure is 0.10 to 1.95 MPa and the separation temperature is 10 to 90 DEG C, to obtain an extraction solution; (3) standing the extraction solution for 10 to 90 minutes under the room temperature, to obtain the black wolfberry seed oil. By adopting the method, not only can the production cost be effectively reduced, the extraction and separation time is shortened, and the consumption of solvent and energy consumption in the process flow can be reduced; moreover, the method is simple in process flow, high in operability, high in extraction efficiency, environment-friendly, pollution-free, good in safety and repeatability and capable of realizing the industrialized continuous mass production.

Description

technical field [0001] The invention relates to a method for extracting black wolfberry seed oil, in particular to a method for extracting black wolfberry seed oil with a subcritical fluid. Background technique [0002] Black wolfberry is sweet in taste and flat in nature, rich in protein, fat, sugar, free amino acid, organic acid, mineral, trace element, alkaloid, vitamin C, B 1 , B 2 , calcium, magnesium, copper, zinc, manganese, iron, lead, nickel, cadmium, cobalt, chromium, potassium, sodium and other nutrients, especially the high content of proanthocyanidins. Black wolfberry is distributed in western Qinghai, Jiuquan, Gansu, central Xinjiang, western Inner Mongolia, Ningxia and Tibet. [0003] In addition, the analysis by gas chromatography spectrometry shows that the unsaturated fatty acid in black wolfberry oil is close to 80%, which has good health care value and medicinal value. Because black wolfberry oil contains a large amount of nutrients and physiologically...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/10
Inventor 陈宝华
Owner QINGHAI TIBET BIOTECH CO LTD
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