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

Extraction method of gardenia yellow pigment

A gardenia yellow pigment and an extraction method technology are applied in the extraction field of gardenia yellow pigment, can solve the problems of low price of gardenia yellow pigment, affect product quality, short storage time, etc. The content of impurities and the effect of short production cycle

Active Publication Date: 2013-02-06
JIANGSU JIUWU HITECH
View PDF7 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing gardenia yellow pigment production process also has the following defects: 1, the color value of the obtained gardenia yellow pigment is not high (below 300); 2, the obtained gardenia yellow pigment is stored after a period of time There will be green and gray changes, and a little precipitation will affect the product quality, that is, the storage time is short

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

[0039] Utilize a high-speed pulverizer (model: XL-880, Hangzhou Saixu Food Machinery Co., Ltd.) to pulverize 50kg of gardenia dried fruit through peeling treatment, obtain the gardenia powder that particle diameter is 1-10mm, then to described gardenia Add 500kg of purified water and 1% pectinase to the powder. The leaching was carried out for 4 hours under the condition of 25° C. to obtain the leaching solution.

[0040] Utilize flat plate centrifuge (model: LD-800, Zhangjiagang City Xinhua Chemical Machinery Co., Ltd.) to carry out solid-liquid separation to described leaching solution and obtain supernatant, described supernatant passes through the pore diameter after being pressurized by booster pump. 50nm first inorganic ceramic membrane for microfiltration. The operating pressure of the microfiltration is 0.15MPa, and the membrane surface velocity of the microfiltration is 2m / s.

[0041] Utilize the SX-2 macroporous resin to adsorb the gardenia yellow pigment in the fi...

Embodiment 2

[0044] Grinding 50 kg of peeled gardenia dried fruit with a high-speed pulverizer to obtain gardenia powder with a particle size of 1-10 mm, and then adding 750 kg of purified water and 2% pectinase to the gardenia powder. A total of 2 extractions were performed, and each extraction was carried out at 40° C. for 1 hour, and then the extracts obtained from each extraction were combined.

[0045] A flat centrifuge is used to perform solid-liquid separation on the extract to obtain a supernatant, and the supernatant is pressurized by a booster pump and passed through a first inorganic ceramic membrane with a pore size of 1000 nm for microfiltration. The operating pressure of the microfiltration is 0.3MPa, and the membrane surface velocity of the microfiltration is 4m / s.

[0046] Utilize SX-3 macroporous resin to adsorb the gardenia yellow pigment in the first filtrate, then first utilize 35% ethanol solution to elute SX-3 macroporous resin to remove impurities, and then utilize 5...

Embodiment 3

[0049] Grinding 50 kg of peeled gardenia dried fruit with a high-speed pulverizer to obtain gardenia powder with a particle size of 1-20 mm, and then adding 600 kg of purified water and 3% pectinase to the gardenia powder. A total of 4 extractions were performed, and each extraction was carried out at 30° C. for 2 hours, and then the extracts obtained from each extraction were combined.

[0050] A flat centrifuge is used to perform solid-liquid separation on the leachate to obtain a supernatant, and the supernatant is pressurized by a booster pump and passed through a first inorganic ceramic membrane with a pore size of 100 nm for microfiltration. The operating pressure of the microfiltration is 0.2 MPa, and the membrane surface velocity of the microfiltration is 2.5 m / s.

[0051] Use HPD400 macroporous resin to absorb the gardenia yellow pigment in the first filtrate, then use 30% ethanol solution to elute HPD400 macroporous resin to remove impurities, and then use 50% ethano...

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

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
pore sizeaaaaaaaaaa
pore sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses an extraction method of gardenia yellow pigment, comprising the steps of: (A) crushing peeled gardenia to obtain gardenia particles, adding water to the gardenia particles and leaching the gardenia particles to obtain leachate; (2) carrying out solid-liquid separation on the leachate to obtain supernatant, and carrying out microfiltration on the supernatant to obtain first filtrate; (C) adsorbing gardenia yellow pigment in the first filtrate utilizing resin, and eluting the resin to obtain eluate; and (D) carrying out ultrafiltration on the eluate to obtain second filtrate, and finally drying the second filtrate to obtain gardenia yellow pigment. By utilizing the extraction method disclosed by the embodiment of the invention, gardenia yellow pigment with high color number, high purity, high quality and long storage life can be obtained; and the obtained gardenia yellow pigment does not turn into green or grey after long-term storage.

Description

technical field [0001] The invention relates to a method for extracting gardenia yellow pigment, in particular to a method for extracting gardenia yellow pigment from gardenia. Background technique [0002] Synthetic pigments are widely used due to their low extraction cost, stable properties and strong tinting strength. However, with the deepening of medical toxicology and biological research, it was found that synthetic pigments have potential teratogenicity, carcinogenicity and other toxic side effects, so synthetic pigments are gradually replaced by natural pigments. Gardenia yellow pigment is a natural pigment extracted from the fruit of Rubiaceae gardenia, which has strong stability, high safety, and nutritional and health effects. [0003] However, the existing gardenia yellow pigment production process also has the following defects: 1, the color value of the obtained gardenia yellow pigment is not high (below 300); 2, the obtained gardenia yellow pigment is stored ...

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): C09B61/00C09B67/54
Inventor 熊福军王志高陈磊彭文博张宏
Owner JIANGSU JIUWU HITECH
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