Method for continuously extracting active ingredients from grape seeds

A grape seed and grape seed oil technology, applied in organic chemistry, bulk chemical production, fat production, etc., can solve the problems of high extraction temperature, large loss of active ingredients, high cost, etc., and achieve high extraction efficiency, continuous extraction, easy to extract effects

Inactive Publication Date: 2013-07-10
JISHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In terms of extracting the effective components of grape seeds, traditional solvent extraction, distillation, pressing and other processes are adopted, with high extraction temperature, many operation steps, high energy consumption and large loss of active components.
Some people also use supercritical carbon dioxide extraction technology to extract grape seed oil and proanthocyanidins, but there are also problems s...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Example 1: Grape seed oil and active ingredients of proanthocyanidins are continuously extracted from grape seeds.

[0011] 1. The treatment of grape seeds includes crushing, enzymatic hydrolysis and vacuum drying of grape seeds. Grape seeds were crushed to 25 meshes, then water of 16% of grape seed mass and 0.7% cellulase were added, wherein the enzyme activity of cellulase was 21000 units, after mixing well, enzymolysis was carried out at a temperature of 46°C for 5 hours, After the enzymatic hydrolysis, the grape seeds are vacuum-dried to a water content of 6% at a drying temperature of 55°C.

[0012] 2 Extraction of grape seed oil and proanthocyanidins. Put the treated grape seeds into the extraction kettle for supercritical carbon dioxide extraction. The extraction temperature is 47°C, the extraction pressure is 26Mpa, the separation temperature is 26°C, the flow rate is 85L / h, and the extraction time is 5h. That is grapeseed oil. After the grape seed oil in the...

Embodiment 2

[0014] Example 2: Grape seed oil and proanthocyanidin active ingredients are continuously extracted from grape seeds.

[0015] 1. The treatment of grape seeds includes crushing, enzymatic hydrolysis and vacuum drying of grape seeds. Grape seeds were crushed to 35 meshes, then water of 19% of grape seed mass and 0.55% cellulase were added, wherein the enzyme activity of cellulase was 29000 units, after mixing well, enzymolysis was carried out at a temperature of 53°C for 7 hours, After the enzymatic hydrolysis, the grape seeds are vacuum-dried to a moisture content of 6.5% and a drying temperature of 65°C.

[0016] 2 Extraction of grape seed oil and proanthocyanidins. Put the treated grape seeds into the extraction kettle for supercritical carbon dioxide extraction. The extraction temperature is 54°C, the extraction pressure is 27Mpa, the separation temperature is 29°C, the flow rate is 40L / h, and the extraction time is 7h. That is grapeseed oil. After the grape seed oil in ...

Embodiment 3

[0018] Example 3: Grape seed oil and proanthocyanidin active ingredients are continuously extracted from grape seeds.

[0019] 1. The treatment of grape seeds includes crushing, enzymatic hydrolysis and vacuum drying of grape seeds. Grape seeds were pulverized to 30 mesh, then water of 18% of grape seed mass and 0.6% cellulase were added, wherein the enzyme activity of cellulase was 26000 units, after mixing well, enzymolysis was carried out at a temperature of 50°C for 3.5 hours, After the enzymatic hydrolysis, the grape seeds are vacuum-dried to a moisture content of 7% at a drying temperature of 60°C.

[0020] 2 Extraction of grape seed oil and proanthocyanidins. Put the treated grape seeds into the extraction kettle for supercritical carbon dioxide extraction. The extraction temperature is 50°C, the extraction pressure is 29Mpa, the separation temperature is 28°C, the flow rate is 60L / h, and the extraction time is 3h. That is grapeseed oil. After the grape seed oil in t...

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PUM

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Abstract

The invention discloses a method for continuously extracting grape seed oil and proanthocyanidin from grape seeds. The method comprises the following steps of: (1) treating grape seeds, and performing crushing, enzymolysis and vacuum drying on the grape seeds; and (2) firstly extracting the grape seed oil by using the supercritical carbon dioxide extraction technology, changing the extracting temperature and the extracting pressure after the grape seed oil is extracted, adding an entrainer, collecting a secondary extract, and obtaining a proanthocyanidin extract through separation and purification. By adopting the method, the total unsaturated fatty acid in the grape seed oil is 80-90 mass percent, and the proanthocyanidin in the proanthocyanidin extract is 90-98 mass percent. By adopting the method, the technologies of vacuum drying, cellulose enzymolysis and supercritical extraction are effectively integrated, so that low-temperature, low-energy, green, efficient and continuous extraction of the active ingredients in the grape seeds is realized. The grape seed oil and the proanthocyanidin extract are widely applied to the fields of medicine, food and health-care food, and have wide prospects.

Description

technical field [0001] The invention relates to a new method for continuously extracting active ingredients of grape seed oil and proanthocyanidins from grape seeds. Background technique [0002] Grape seeds are the product obtained after the grapes are separated from the skin and dried. Grape seeds contain grape seed oil, proanthocyanidins and other biologically active ingredients. Grape seed oil content is about 14%. Grape seed oil is rich in unsaturated fatty acids, which can lower human serum cholesterol and blood pressure. It is a high-grade health-care edible oil; grape seed is also rich in proanthocyanidins (according to the variety and quality, The mass fraction ranges from 3% to 12%), proanthocyanidins are a kind of natural polyphenolic compounds belonging to biflavone derivatives, which exist in a variety of plants, and their antioxidant and free radical scavenging abilities in the human body are 50% of vitamin E times, and also has the functions of protecting ca...

Claims

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Application Information

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IPC IPC(8): C07D311/62C11B1/10C11B1/04
CPCY02P20/54
Inventor 田宏现
Owner JISHOU UNIVERSITY
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