Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for extracting blueberry anthocyanin with good stability

A blueberry anthocyanin and extraction method technology, applied in the field of blueberry anthocyanin extraction, can solve the problems of easy fading, insufficient stability, inconvenient daily production and application, etc., and achieve the effect of good stability and not easy to change color

Active Publication Date: 2013-02-27
CHANGSHA HUAKANG BIOTECH DEV
View PDF4 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The existing blueberry anthocyanin extraction process is: raw material-crushing-alcohol extraction-water precipitation-filtration-column adsorption-elution-concentration-drying-crushing-packaging-finished product, its stability is not good enough, and it is easy to fade , which brings inconvenience to daily production and application

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 Construction

[0022] The technical scheme of the present invention will be further described below through specific embodiments:

[0023] The invention provides a method for extracting blueberry anthocyanins with good stability, comprising the following steps:

[0024] S1, material preparation: crush the raw material into fine powder of 20-60 mesh;

[0025] S2. Alcohol extraction: extract three times with 60% ethanol water, the extraction temperature is 50°C, and the extraction time is 2h, 2h, and 1h respectively;

[0026] S3. Water precipitation: after vacuum concentration and recovery of ethanol, the concentrate is added with pure water to precipitate and remove impurities. The vacuum degree during vacuum concentration is -0.07MPa~-0.088MPa;

[0027] S4. Membrane separation: after the supernatant is separated by the membrane, it is concentrated in vacuum again. When the membrane is separated, the temperature is <40°C, the pressure is <0.1MPa, and the vacuum degree is -0.07MPa~-0.088MPa d...

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 blueberry anthocyanin with good stability. Raw materials are crushed into fine powder in a range of 20 meshes to 60 meshes; ethanol water of 60% is used for extraction for three times, wherein the extraction temperature is 50 DEG C, and the extraction time is 2h, 2h and 1h respectively; vacuum concentration is performed to recycle ethanol, pure water is added in a concentrate for precipitation and impurity removing, and a supernate is subjected to membrane separation and secondary vacuum concentration; supercritical CO2 extraction separation is performed, wherein the extraction temperature is 35 DEG C, and the pressure is 25 MPa; and vacuum drying is performed after refining and impurity removing, dry pastes are crushed and screened, accessories are added, and the mixture is mixed evenly, inspected, packaged and put in storage. Low-temperature separation techniques of membrane separation techniques, supercritical extraction separation techniques and the like are used to extract superior blueberry extract powder. The blueberry anthocyanin is not easy to change colors and is good in stability.

Description

technical field [0001] The invention relates to a method for extracting anthocyanins, in particular to a method for extracting blueberry anthocyanins with good stability. Background technique [0002] Blueberry, also known as bilberry, blueberry, red bean fruit, etc., is a plant of the genus Vaccinium in the family Rhododendronaceae. It is a shrub and distributed in subfrigid, temperate and subtropical zones. Blueberry fruit is rich in nutrients. In addition to organic acids, vitamins and minerals in general fruits, it also contains rich unsaturated fatty acids and trace elements, anthocyanins, flavonoids and other phenolic physiologically active ingredients. It has strong medicinal value and nutritional function, and it is listed as one of the five health foods by the National Food and Agriculture Organization. In recent years, it has developed rapidly and has a large market capacity. According to the long-term development of the industry, it is imperative to increase the...

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): C07D311/62
CPCY02P20/54
Inventor 刘星勋
Owner CHANGSHA HUAKANG BIOTECH DEV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com