Fast detection of degradation property for biological degradation materials by utilizing bacteriological hybrid bacterium group

A technology of biodegradable materials and mixed flora, which is applied in the field of biodegradable environmental material degradation performance testing and research, can solve the problems of poor repeatability and long test time, and achieve the effects of accelerated degradation speed, large capacity and good repeatability

Inactive Publication Date: 2005-09-07
NANKAI UNIV
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The shortcomings of these detection methods are that the test time is long and the repeatability is poo

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
  • Fast detection of degradation property for biological degradation materials by utilizing bacteriological hybrid bacterium group
  • Fast detection of degradation property for biological degradation materials by utilizing bacteriological hybrid bacterium group
  • Fast detection of degradation property for biological degradation materials by utilizing bacteriological hybrid bacterium group

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1.

[0021] Utilizing the mixed bacterial flora for polyhydroxybutyrate valeric acid copolyester (PHB / V), cellulose, polybutylene succinate and polybutylene adipate copolymer (PBSA), polycarbonate The degradation performance of 12 kinds of materials such as PPC and PBS are tested.

[0022] 1. Test equipment

[0023] 1.1 Bioreactor

[0024] In this experiment, a 1-liter triangular flask was used as the bioreactor, and the mouth of the flask was blocked with a rubber stopper. Two holes were left on the rubber stopper, namely the air inlet and the air outlet. No carbon dioxide can leak from the connecting pipe. The bioreactor is placed in a constant temperature water bath device with a magnetic stirring function to ensure a constant temperature during the reaction process and always stir the test solution during the entire reaction process to ensure that the dissolved oxygen in the mineral salt test solution can meet the aerobic degradation of microorganisms Needs.

[...

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 belongs to the field of bioenvironment material degradation property research, which comprises: separating from the environment and getting the degraded bacterium of every degradation materials, sorting and attesting and forming the mixing bacterium group, designing the device to measure the discharge of the carbon dioxide in the degradation process. Said invention measuring the degradation ability according to the principle of the mixing bacterium group can measure the carbon dioxide transformed from organic carbon in the high polymer, and because using the mixing bacterium group, the result has a good repeatability and can be used widely.

Description

technical field [0001] The invention belongs to the research field of biodegradable environmental material degradation performance detection Background technique [0002] Traditional plastics cannot be degraded in the natural environment, causing serious "white pollution". Therefore, all countries in the world attach great importance to the research and development of biodegradable materials. In recent years, many new biodegradable materials have been prepared by chemical synthesis or microbial fermentation. During the development and production of degradable materials, the detection of degradability is very important. However, there is no convenient, fast and reproducible detection method at present, so it is urgent to establish a practical method for detecting the degradation performance of biodegradable materials. [0003] Some researches have been done internationally on the detection methods of the degradation performance of biodegradable materials, and corresponding ...

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): C12Q1/02G01N33/00G01N35/00
Inventor 宋存江杨超白云鹏张斌刘静陶健曾猛郑承刚金映红邓飞高文柏松
Owner NANKAI UNIV
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