Biodegradation of Butyl Rubber by Aspergillus niger copyright reserved

1. Biodegradation of Butyl Rubber by Aspergillus niger
• It has been reported that butyl rubber
weighing more 12 billion tons is
produced annually.
• The problem is with their fate in
environment after use.
• Most of the rubber products are used
onetime only and are disposed to the
environment in unsafe manner.
• The swelling phenomena of butyl
rubber increases risk of polluting
environment
• Aspergillus niger a key role in
degradation of butyl rubber .Therefore
it will be more suitable for
biodegradation.
Introduction
Existing methods of plastic waste
treatment is:
• Landfilling
• Pylorises
• Recycling
• Microbial Biodegradation
 it is the most preferred way for
degradation of rubber.
 Most of the waste materials in
demineralized by fungi, collectively
called decomposers.
 Present studies focusses on
biodegradation of butyl rubber waste
by microbes and GE microbes.
Feasibility Analysis
 How to develop green
technology/environment friendly
protocol to utilize waste butyl
rubber.
 Can A. niger could be an efficient
species for biodegradation of butyl
rubber.
 Is A. niger could be found at the
dumping site?
Research question
Our experiment provides that the
involvement of such microorganisms
as Aspergillus Niger in the
biodegradation of Butyl rubber
derivatives (tire tubes, ball bladders)
is decreased in weight and size by
desulfurization and oxidation. it is
expected that the generated results
will contribute to the solution of
certain problems associated with the
disposal and management will be
solved soon.
Conclusion
The present feasibility analysis
prioritizes the “Biodegradation
using microbes and GE microbes is
a better choice to address the plastic
waste as a global need ”.
Recommendation
1.Kroschwitz,ConciseEncyclopedi
a of Polymer Science Engineering.
Wiley- lntcrscience. New York.
2002.
2. Singh, B., Sharma, N., 2008.
Mechanistic implications of plastic
degradation. Polym. Degrad.
3. Bonhomme, S., Cuer, A., Delort,
A.M., Lemaire, J., Sancelme, M.,
Scott, G., 2003. Environmental
biodegradation of polyethylene.
Polymer Degrad.
4.Sivan, A., 2011. New perspective
in plastic biodegradation. Curr.
Opin. Biotechnol.
References
The extent of the biodegradation was
quantified by means of dry weight loss
determination while changes in the rubber
morphology were examined with SEM
analyses.
The morphology of the NR surface was
investigated by means of SEM analyses. NR,
washed or not, was fixed overnight with a
5% glutaraldehyde solution and then
analyzed using a LEO/Zeiss .
SEM