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Ultrasonic-assisted supercritical CO2 extraction method of wolfberry seed oil

A technology of wolfberry seed oil and ultrasonic wave is applied in the direction of oil/fat production and fat production, which can solve the problems of difficulty in effectively extracting all components, low extraction efficiency, and increased extraction cost.

Inactive Publication Date: 2013-05-29
GANSU AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a new non-toxic extraction technology, supercritical extraction has been widely used in the extraction of wolfberry seed oil. However, since supercritical fluid extraction cannot completely extract the oil in wolfberry seeds, the extraction efficiency is low. Even with more extraction cycles, It is also difficult to extract all the effective ingredients, which increases the cost of extraction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Ultrasonic Assisted Supercritical CO 2 The method for extracting wolfberry seed oil, it comprises the steps:

[0013] (1) Pretreatment After the impurities in the wolfberry seeds are removed, mechanically pulverize, sieve and classify, and obtain 30-mesh wolfberry seed powder; (2) Ultrasonic treatment accurately weighs 50 g of the above-mentioned wolfberry seed powder and evenly mixes it with iso-Vc sodium 0.25 g, put the sample into an ultrasonic cell pulverizer for treatment, the ultrasonic treatment temperature is 40°C, the ultrasonic power is 400W, and the treatment time is 6min; (3) The Lycium barbarum seed powder treated in step (2) is subjected to supercritical CO 2 Extraction Add wolfberry seed powder after ultrasonic treatment into the barrel, put the barrel into the extraction tank, and tighten the seal; open the refrigeration cycle system, set the extraction pressure to 20MPa, and the extraction temperature to 50°C; after the cooling is over, open the air int...

Embodiment 2

[0015] Ultrasonic Assisted Supercritical CO 2 The method for extracting wolfberry seed oil, it comprises the steps:

[0016] (1) Pretreatment After the impurities in the wolfberry seeds are removed, mechanically pulverize, sieve and classify, and obtain 40-mesh wolfberry seed powder; (2) Ultrasonic treatment accurately weighs 50 g of the above-mentioned wolfberry seed powder and evenly mixes it with iso-Vc sodium 0.5 g, put the sample into an ultrasonic cell pulverizer for treatment, the ultrasonic treatment temperature is 50°C, the ultrasonic power is 300W, and the treatment time is 8min; (3) The Lycium barbarum seed powder treated in step (2) is subjected to supercritical CO 2 Extraction Add wolfberry seed powder after ultrasonic treatment into the barrel, put the barrel into the extraction tank, and tighten the seal; open the refrigeration cycle system, set the extraction pressure to 40MPa, and the extraction temperature to 40°C; after the cooling is over, open the air inta...

Embodiment 3

[0018] Ultrasonic Assisted Supercritical CO 2 The method for extracting wolfberry seed oil, it comprises the steps:

[0019] (1) Pretreatment After the impurities in the wolfberry seeds are removed, mechanically pulverize, sieve and classify, and obtain 50-mesh wolfberry seed powder; (2) Ultrasonic treatment accurately weighs 50 g of the above-mentioned wolfberry seed powder and evenly mixes it with iso-Vc sodium 0.75 g, put the sample into an ultrasonic cell pulverizer for treatment, the ultrasonic treatment temperature is 60°C, the ultrasonic power is 200W, and the treatment time is 4min; (3) The Lycium barbarum seed powder treated in step (2) is subjected to supercritical CO 2 Extraction Add wolfberry seed powder after ultrasonic treatment into the barrel, put the barrel into the extraction tank, and tighten the seal; open the refrigeration cycle system, set the extraction pressure to 30MPa, and the extraction temperature to 30°C; after the cooling is over, open the air int...

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Abstract

The invention relates to an ultrasonic-assisted supercritical CO2 extraction method of wolfberry seed oil. The extraction method comprises the following steps: (1) pretreatment: removing impurities from wolfberry seeds, mechanically crushing, and screening and classifying; (2) ultrasonic treatment: weighing wolfberry seed powder and placing the powder in an ultrasound device for ultrasonic treatment; and (3) carrying out supercritical CO2 extraction on the wolfberry seed powder treated in the step (2). In the invention, ultrasonic extraction and supercritical CO2 extraction are combined, thussignificantly improving the extraction rate; and the extraction method is a safe and efficient method for extracting the wolfberry seed oil.

Description

technical field [0001] The invention relates to a scientific food processing technology, in particular to a method for extracting wolfberry seed oil. Background technique [0002] Lycium barbarum has a long history and has the same origin as medicine and food. It is a famous and precious Chinese medicinal material well-known both at home and abroad. Lycium barbarum seeds account for 15% to 20%, and wolfberry seeds contain about 18% oil. Lycium barbarum seeds, as the sexual reproductive organs of Lycium barbarum, possess a large number of effective biologically active substances, and contain special components that are not found in the pulp. Lycium barbarum seed oil contains linoleic acid 68.3%, oleic acid 19.1%, γ-linolenic acid 3.1%, vitamin E 27mg / 100g, β-carotene 170mg / 100g, phospholipid 0.25%, and contains a variety of trace elements and biologically active substances Epidermal growth factor, SOD, etc. As a new non-toxic extraction technology, supercritical extraction...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B1/10C11B1/04
Inventor 张珍毕阳张盛贵张玉斌张丽张佩
Owner GANSU AGRI UNIV