Method for extracting grape seed oil and procyanidine from grape seeds by one-step process

A technology of proanthocyanidins and grape seed oil, which is applied in the field of comprehensive utilization and extraction of grape seeds, can solve the problems of low utilization rate of grape seeds, increased equipment investment, increased production costs, etc., and achieves easy control, low production costs, and short operation time Effect

Active Publication Date: 2008-05-14
无锡中粮工程科技有限公司
View PDF2 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patents CN1724531A, CN1241623A etc. disclose supercritical CO 2 A method for extracting grape seed oil and proanthocyanidins, but the method is complex, the operation is cumbersome, the output is small, and the investment in equip

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

Example Embodiment

[0015] Example 1:

[0016] Take 500 g of grape seeds and crush them through a 40-mesh coarse sieve, and extract with 2000 mL of n-hexane / ethanol mixed solvent. The ratio of n-hexane / ethanol is equal in volume, the temperature is 70° C., and the time is 6 hours. After three extractions, the solvents are combined. After the mixed solvent is allowed to stand for stratification, the light phase extract is desolventized at 80-85℃ and the vacuum degree is 0.02-0.04MPa to obtain grape seed crude oil. The crude oil yield is 57.79g; the heavy phase extract is at 80 -85℃, the vacuum degree is 0.02-0.04MPa under reduced pressure evaporation to recover the solvent to obtain the extract. 1000mL of water is added to the extract, and the supernatant is obtained by centrifugation after standing; 1500g AB-8 resin is fully immersed in ethanol and swollen Wash with distilled water until there is no ethanol smell, load it into the adsorption column and equilibrate with water; add the supernatant to t...

Example Embodiment

[0017] Example 2:

[0018] Take 500g of grape seeds and crush them through a 40-mesh coarse sieve, and extract with 1500mL cyclohexane / acetone mixed solvent. The volume ratio of cyclohexane / acetone is 7:3, the temperature is 50℃, and the time is 6 hours. After three extractions, the solvents are combined. . After the mixed solvent and 500mL of water are allowed to stand for stratification, the light phase extract is desolventized at 80-85℃ and the vacuum degree is 0.02-0.04MPa to obtain grape seed crude oil. The crude oil yield is 51.63g; heavy phase extraction The solvent is recovered by evaporation under reduced pressure at 80-85℃ and the vacuum degree of 0.02-0.04MPa to obtain the extract. 1000mL of water is added to the extract, and the supernatant is obtained by centrifugation after standing; fully soak 1500g of D101 resin in ethanol After swelling, wash with distilled water until there is no ethanol smell, load into the adsorption column, and balance with water; add the supe...

Example Embodiment

[0019] Example 3:

[0020] Take 500 g of grape seeds and crush them through a 40-mesh coarse sieve, and extract with 2500 mL of petroleum ether / methanol mixed solvent. The volume ratio of petroleum ether / methanol is 3:7, the temperature is 60° C., and the time is 6 hours. After three extractions, the solvents are combined. After the mixed solvents are allowed to stand for layering, the light phase extract is desolventized at 80-85℃ and the vacuum degree is 0.02-0.04MPa to obtain grape seed crude oil. The crude oil yield is 53.46g; the heavy phase extract is at 80 -85℃, the vacuum degree is 0.02-0.04MPa under reduced pressure evaporation to recover the solvent to obtain the extract. 1000mL of water is added to the extract, and the supernatant is obtained by centrifugation after standing; 1500g of D3520 resin is fully immersed in ethanol to swell and use Wash with distilled water until there is no ethanol smell, load it into the adsorption column and equilibrate with water; add the ...

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 discloses a method for extracting grape seed oil and proanthocyanidins from grape seeds in one step, belonging to the technical field of comprehensive utilization and extraction of grape seeds. The invention uses crushed grape seeds as raw materials, extracts with a mixed solvent to obtain light phase and heavy phase extracts, the light phase extract is desolvated to obtain grape seed crude oil, and the heavy phase extract is purified by macroporous resin to obtain Proanthocyanidin products. The grape seed oil prepared by the grape seed treatment method of the present invention has good color and the residual oil rate is less than 1%; the yield of the prepared proanthocyanidin is higher than 75%, and the purity is higher than 95%. The method of the invention has the advantages of simple process flow, less equipment investment, easy control, standardized operation, short operation time, low production cost and easy industrialization.

Description

technical field [0001] The invention discloses a method for extracting grape seed oil and proanthocyanidins from grape seeds in one step, which uses a mixed solvent to extract grape seed oil and proanthocyanidins from grape seeds, and belongs to the technical field of comprehensive utilization and extraction of grape seeds. Background technique [0002] my country is rich in grape resources, and its cultivation area and output both rank fifth in the world. The annual output is about 5.176 million tons, while the grape seed skin waste generated by enterprises is about 400,000 tons. How to comprehensively utilize grape seed resources has become a concern hotspot. Grape seeds contain a large number of bioactive ingredients, including about 8% proanthocyanidins and about 12% grape seed oil. Grape seed proanthocyanidins have strong antioxidant properties, free radical scavenging ability and ability to improve human microcirculation. It is one of the strongest and most effective o...

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
IPC IPC(8): C11B1/10C07D311/62
Inventor 郑茂强蒋蕴珍王四维王猛王璐朱小兵
Owner 无锡中粮工程科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap