Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for extracting and purifying grape seed oil from grape seeds

A grape seed oil and grape seed technology, which is applied in the directions of fat oil/fat production, fat oil/fat refining, and fat production, can solve the problems of low comprehensive utilization rate of grape seeds, discarding, economic loss, etc., and achieves fewer extraction and purification steps, The effect of high recovery rate, lower investment and production costs

Inactive Publication Date: 2014-04-23
GANSU AGRI UNIV +1
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In my country, the comprehensive utilization rate of grape seeds is low, and many of them are directly used as feed, or even discarded before treatment, causing great economic losses and huge pressure on the environment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1 A method for extracting and purifying grape seed oil from grape seeds, comprising the following steps:

[0022] (1) Crush the grape seeds to 40 mesh to obtain grape seed powder.

[0023] (2) Extract the grape seed powder with petroleum ether at a material-to-liquid mass-volume ratio of 1g: 2mL at a temperature of 50°C for 3 hours, and stir once every 20 minutes during this period to obtain an extract, which is filtered with gauze, that is Obtain the crude extract of seed oil.

[0024] (3) Add activated clay to the crude extract according to the mass volume ratio of 1g: 60mL of material and liquid, keep stirring for 1min, let it stand for 30min, pour out the supernatant, and obtain the decolorized crude extract.

[0025] (4) The decolorized crude extract is vacuum-concentrated at 60°C and the vacuum degree is -0.06MPa until all petroleum ether is removed to obtain crude oil.

[0026] (5) Add NaOH solution with a mass fraction of 17% to the crude oil, 3 ...

Embodiment 2

[0031] Example 2 A method for extracting and purifying grape seed oil from grape seeds, comprising the following steps:

[0032] (1) Crush the grape seeds to 60 mesh to obtain grape seed powder.

[0033] (2) Extract the grape seed powder with petroleum ether at a mass-volume ratio of 1g: 6mL at 70°C for 1 hour, and stir once every 20 minutes during this period to obtain an extract, which is filtered with gauze, that is Obtain the crude extract of seed oil.

[0034] (3) Add activated clay to the crude extract according to the mass volume ratio of 1g:100mL of material to liquid, keep stirring for 2 minutes, let it stand for 40 minutes, and pour out the supernatant to obtain the decolorized crude extract.

[0035] (4) The decolorized crude extract is vacuum-concentrated at 70°C and a vacuum degree of -0.08MPa until all petroleum ether is removed to obtain crude oil.

[0036] (5) Add NaOH solution with a mass fraction of 17% to the crude oil, 3 The flow rate of / h was vac...

Embodiment 3

[0041] Example 3 A method for extracting and purifying grape seed oil from grape seeds, comprising the following steps:

[0042] (1) Pulverize the grape seeds to 50 mesh to obtain grape seed powder.

[0043] (2) Extract the grape seed powder with petroleum ether at a material-to-liquid mass-volume ratio of 1g: 4mL at 60°C for 2 hours, and stir once every 20 minutes during this period to obtain an extract, which is filtered with gauze, that is Obtain the crude extract of seed oil.

[0044] (3) Add activated clay to the crude extract according to the mass volume ratio of 1g:80mL of material and liquid, keep stirring for 1.5min, then let it stand for 35min, and pour out the supernatant to obtain the decolorized crude extract.

[0045] (4) The decolorized crude extract is vacuum-concentrated at 65°C and a vacuum degree of -0.07MPa until all petroleum ether is removed to obtain crude oil.

[0046] (5) Add NaOH solution with a mass fraction of 17% to the crude oil, 3 The fl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for extracting and purifying grape seed oil from grape seeds. The method comprises the following steps of (1) smashing the grape seeds to obtain grape seed powder; (2) leaching the grape seed powder by using petroleum ether and filtering to obtain a seed oil crude extract; (3) adding activated clay into the crude extract, continuously stirring and standing to obtain a decolorized crude extract; (4) carrying out vacuum concentration on the decolorized crude extract till the petroleum ether is completely removed to obtain crude oil; (5) adding a NaOH solution into the crude oil, carrying out vacuum pumping, adding activated clay to decolorize the mixture, and carrying out centrifugal separation to respectively obtain lower-layer activated clay and upper-layer clear liquid, wherein the upper-layer clear liquid is decolorized crude oil; (6) processing the decolorized crude oil by using an activated carbon column to obtain essential oil A; (7) adding the petroleum ether into the lower-layer activated clay, carrying out vacuum filtration and vacuum concentration to obtain recovered oil, carrying out vacuum pumping on the recovered oil and processing the recovered oil by using an activated carbon column to obtain essential oil B; and (8) combining the essential oil A and the essential oil B to obtain the end product. The method disclosed by the invention is little in investment, simple in process and low in environmental pollution and is suitable for industrial production.

Description

technical field [0001] The invention relates to a method for extracting and purifying active ingredients in natural products, in particular to a method for extracting and purifying grape seed oil from grape seeds. Background technique [0002] Grape seed oil is rich in linoleic acid and other functional components, of which linoleic acid content is as high as 70%, which is an essential fatty acid for the human body and is the main raw material for the synthesis of tetracosatetraenoic acid by the human body. Acenoic acid is the main substance for human body to synthesize prostaglandins, which can expand and soften blood vessels, lower cholesterol, prevent thrombosis and nourish brain cells. Grape seed oil is used as a high-level health care oil and high-level nutrition because it contains a variety of fat-soluble vitamins and water-soluble vitamin P. In addition, grape seed oil contains a variety of mineral elements and grape polyphenols necessary for the human body, and enj...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/10C11B3/00C11B3/10
Inventor 李胜马绍英周文政胡翠珍苏利荣唐斌曹宝成
Owner GANSU AGRI UNIV