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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2016.5(10): 1084-1096
DOI: http://dx.doi.org/10.20546/ijcmas.2016.510.114


Isolation and Impact of Cellulose-Degrading Bacteria on Physico-chemical and Microbiological Properties of Plant Residues during the Aerobic Decomposition
Ebtihal Abdullah Motwali1, Hashem Mahmoud Mohamed2*, Abu-Bakr Mahmoud Gomaa3 and Fahad Abdul Rahman Al-Fassi3
1Biological Sciences Department, Faculty of Science, Jeddah University, Jeddah, Kingdom of Saudi Arabia
2Department of Soils & Water, Faculty of Agriculture, Assiut University, Assiut, Egypt, 71526
3Biological Sciences Department, Faculty of Science, King Abdulaziz University, P.O Box 80203, Jeddah, Kingdom of Saudi Arabia
*Corresponding author
Abstract:

Five cellulose-decomposing Bacillus strains were isolated and the highly efficient two strains that were putatively identified as Bacillus megaterium and  Bacillus brevis were used in the composting process. Plant residues were collected from the mown grass of King Abdulaziz University and composted for 60 days under aerobic conditions. Samples from the composting material were taken at 0, 12, 14, 33, 50 and 60 days and monitored for physical, chemical and microbiological analysis. The temperature of the compost pile  rose to 44.0 ºC after one day of composting and reached its peak of 55.0 ºC after four days and lasted above 45.0 ºC until 30 days. The pH value of the residues decreased during the first 14 days of the composting process to reach 5.0 and thereafter it increased to reach 8.6 at the end of this process. The organic matter and carbon content of plant residues gradually decreased during the composting process and the biodegradability coefficient of the composting process was 0.5. The C:N ratio was narrowed rapidly to reach 14.0 in the produced compost. The N, P and K contents of  the residues  increased with increasing the composting period to reach 3.0, 0.73 and 2.4%, respectively, in the resultant compost. Moreover, the number of  total microbe count, cellulose-decomposing microorganisms, fungi and actinomycetes gradually decreased within the first 14 days of the composting process and then, they increased after 33 days except the actinomycetes, that continued to decrease up to 50 days of composting.


Keywords: Composting; cellulose-decomposing; Bacillus; aerobic decomposition; Pile
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How to cite this article:

Ebtihal Abdullah Motwali, Hashem Mahmoud Mohamed, Abu-Bakr Mahmoud Gomaa and Fahad Abdul Rahman Al-Fassi. 2016. Isolation and Impact of Cellulose-Degrading Bacteria on Physico-chemical and Microbiological Properties of Plant Residues during the Aerobic Decomposition.Int.J.Curr.Microbiol.App.Sci. 5(10): 1084-1096. doi: http://dx.doi.org/10.20546/ijcmas.2016.510.114