Isolation and screening of potential actinobacteria for rapid composting of rice straw
Rice straw is produced as a by-product from rice cultivation, which is composed largely of lignocellulosic materials amenable to general biodegradation. Lignocellulolytic actinobacteria can be used as a potential agent for rapid composting of bulky rice straw. Twenty-five actinobacteria isolate...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer
2011
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/4105/ http://irep.iium.edu.my/4105/ http://irep.iium.edu.my/4105/ http://irep.iium.edu.my/4105/1/Paper-Kausar.pdf |
| Summary: | Rice straw is produced as a by-product
from rice cultivation, which is composed largely of
lignocellulosic materials amenable to general biodegradation.
Lignocellulolytic actinobacteria can be
used as a potential agent for rapid composting of
bulky rice straw. Twenty-five actinobacteria isolates
were isolated from various in situ and in vitro rice
straw compost sources. Isolates A2, A4, A7, A9 and
A24 were selected through enzymatic degradation of
starch, cellulose and lignin followed by the screening
for their adaptability on rice straw powder amended
media. The best adapted isolate (A7) was identified as
Micromonospora carbonacea. It was able to degrade
cellulose, hemicelluloses and carbon significantly
(P B 0.05) over the control. C/N ratio was reduced to
18.1 from an initial value of 29.3 in 6 weeks of
composting thus having the potential to be used in
large scale composting of rice straw. |
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