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

Method for extracting ceramide from urban sludge

A technology for ceramide and sludge, applied in the field of ceramide extraction and extraction, can solve the problem that sphingolipids have not been effectively developed, and achieve the effects of avoiding large-scale ecological damage, expanding access channels, and being environmentally friendly.

Active Publication Date: 2020-11-24
RENMIN UNIVERSITY OF CHINA
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this stage, sphingolipids in sludge have not been effectively developed

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for extracting ceramide from urban sludge
  • Method for extracting ceramide from urban sludge
  • Method for extracting ceramide from urban sludge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] The crude extraction of ceramide of the present embodiment The method for extracting ceramide from town sludge comprises the following steps:

[0082] 1) Take 10 g of dried urban sludge in a round bottom flask, add 100 mL of n-hexane and 300 mL of ethanol solution to obtain a mixed solution;

[0083] Adjust the constant temperature water bath to 80°C, and perform Soxhlet extraction on the mixed solution for 10 hours. After the extraction is completed, filter and collect the filtrate.

[0084] Transfer the filtrate to a rotary evaporator to concentrate until the condenser of the rotary evaporator no longer has liquid dripping, and the weight is 1.395g of brownish-yellow extract-like crude fat, that is, the crude extract;

[0085] 2) Weigh 100-200 mesh silica gel at a ratio of crude extract to silica gel of 1:25, and activate the silica gel at 105° C. for 1 hour to obtain activated silica gel.

[0086] Mix the activated silica gel with n-hexane and then wet pack the colu...

Embodiment 2

[0116] The crude extraction of ceramide of the present embodiment The method for extracting ceramide from town sludge comprises the following steps:

[0117] 1) Take 10 g of dried urban sludge in a round bottom flask, add 100 mL of n-hexane and 300 mL of ethanol solution to obtain a mixed solution;

[0118] Adjust the constant temperature water bath to 80°C, and perform Soxhlet extraction on the mixed solution for 12 hours. After the extraction is completed, filter and collect the filtrate.

[0119] Transfer the filtrate to a rotary evaporator for concentration until the condenser of the rotary evaporator no longer has liquid dripping, and the weight is 1.418g of brown-yellow extract-like crude fat, that is, the crude extract;

[0120] 2) Weigh 47.3g of 100-200 mesh silica gel with a ratio of crude extract to silica gel of 3:100, and activate the silica gel at 110°C for 1 hour to obtain activated silica gel.

[0121] Mix the activated silica gel with n-hexane and then wet pac...

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 provides a method for extracting ceramide from urban sludge. The method comprises the following steps: (1) conducting extraction treatment of the urban sludge, and sequentially filteringand concentrating the extracting solution to obtain a crude extract; and (2) conducting silica gel column chromatography purification treatment of the crude extract, collecting the chromatography liquid containing the ceramide, and concentrating the chromatography liquid to obtain the ceramide. In the method, the extraction solvent in step (1) and the eluent in step (2) are a mixed solution of ethanol and n-hexane. Ceramide can be extracted from urban sludge by the method, a new path of resource utilization of urban sludge is opened up, and higher economic benefits of urban sludge can be produced.

Description

technical field [0001] The invention relates to an extraction method, in particular to a method for extracting ceramide from urban sludge, and belongs to the primary technical field of urban sludge resource utilization. Background technique [0002] Municipal sludge is a solid by-product that accompanies the sewage treatment process in sewage treatment plants. In 2015, the annual output of wet sludge (80% moisture content) in my country was about 33.59 million tons (equivalent to 6.7 million tons on a dry basis), and China has become the second largest sludge producer after the United States. With the increase of new sewage treatment plants and the upgrading of existing sewage treatment plants, this number will continue to grow rapidly. It is estimated that by 2020, the annual output of sludge (80% moisture content) in urban sewage treatment plants across the country will reach 60 million Ton. The cost of complex sludge treatment process (handling, storage, transportation,...

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): C02F11/00B01D15/10B01D15/42C07C213/10C07C215/24
CPCC02F11/00B01D15/10B01D15/426C07C213/10C07C215/24
Inventor 朱芬芬董仪
Owner RENMIN UNIVERSITY OF CHINA
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