Crude Oil Degrading Bacteria: Isolation, Growth and Biodegradation Studies

A total of 61 bacteria isolates were isolated from the four soil samples during the primary screening using 0.1% crude oil (v/v) as sole carbon source by the direct plating and enrichment method. However, only 23 isolates gave good growth when grown in 1% crude oil out of which 9 . isolates were...

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Main Author: Ali, Farag M.
Format: Thesis
Language:English
English
Published: 1998
Subjects:
Online Access:http://psasir.upm.edu.my/id/eprint/9431/1/FSAS_1998_22_A.pdf
http://psasir.upm.edu.my/id/eprint/9431/
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Institution: Universiti Putra Malaysia
Language: English
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id my.upm.eprints.9431
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spelling my.upm.eprints.94312024-02-29T09:02:34Z http://psasir.upm.edu.my/id/eprint/9431/ Crude Oil Degrading Bacteria: Isolation, Growth and Biodegradation Studies Ali, Farag M. A total of 61 bacteria isolates were isolated from the four soil samples during the primary screening using 0.1% crude oil (v/v) as sole carbon source by the direct plating and enrichment method. However, only 23 isolates gave good growth when grown in 1% crude oil out of which 9 . isolates were able to grow in crude oil up to 50% concentration. Substrate specificity studies done on 5 of the 9 isolates, showed that all the 5 isolates (170, 181, 183, 217 and 224) were able to grow on all the 10 different hydrocarbon substrates tested with varying preferences. Optimum growth for a/l the 5 isolates were observed at 30°C, pH 7.5, with 1% nitrogen and phosphorous supplements and shaken at 150 rpm. They were able to grow in media containing up to 2.3% NaCI concentration. Among the 5 isolates, isolate 170 gave the highest 00540 reading (0.469) and viability count (1.9x107) after 5 days. Isolates 217 and 183 gave the lowest growth with 00540 and viability count after 5 days, respectively. Infrared spectrometry (IR) analysis showed that all the 5 isolates caused some peaks reduction, disappearance, appearance and intensification after 7 days incubation. Biochemical and morphological studies on the 5 isolates revealed that isolate 170, 183 and 217 belong to Bacillus sp, while, isolates 181 and 224 are Pseudomonas sp. Detailed biochemical identification indicate that isolate 170 is Bacillus subtilis and isolate 181 is Pseudomonas aeruginosa. 1998-04 Thesis NonPeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/9431/1/FSAS_1998_22_A.pdf Ali, Farag M. (1998) Crude Oil Degrading Bacteria: Isolation, Growth and Biodegradation Studies. Masters thesis, Universiti Putra Malaysia. Petroleum - Biodegradation English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
topic Petroleum - Biodegradation
spellingShingle Petroleum - Biodegradation
Ali, Farag M.
Crude Oil Degrading Bacteria: Isolation, Growth and Biodegradation Studies
description A total of 61 bacteria isolates were isolated from the four soil samples during the primary screening using 0.1% crude oil (v/v) as sole carbon source by the direct plating and enrichment method. However, only 23 isolates gave good growth when grown in 1% crude oil out of which 9 . isolates were able to grow in crude oil up to 50% concentration. Substrate specificity studies done on 5 of the 9 isolates, showed that all the 5 isolates (170, 181, 183, 217 and 224) were able to grow on all the 10 different hydrocarbon substrates tested with varying preferences. Optimum growth for a/l the 5 isolates were observed at 30°C, pH 7.5, with 1% nitrogen and phosphorous supplements and shaken at 150 rpm. They were able to grow in media containing up to 2.3% NaCI concentration. Among the 5 isolates, isolate 170 gave the highest 00540 reading (0.469) and viability count (1.9x107) after 5 days. Isolates 217 and 183 gave the lowest growth with 00540 and viability count after 5 days, respectively. Infrared spectrometry (IR) analysis showed that all the 5 isolates caused some peaks reduction, disappearance, appearance and intensification after 7 days incubation. Biochemical and morphological studies on the 5 isolates revealed that isolate 170, 183 and 217 belong to Bacillus sp, while, isolates 181 and 224 are Pseudomonas sp. Detailed biochemical identification indicate that isolate 170 is Bacillus subtilis and isolate 181 is Pseudomonas aeruginosa.
format Thesis
author Ali, Farag M.
author_facet Ali, Farag M.
author_sort Ali, Farag M.
title Crude Oil Degrading Bacteria: Isolation, Growth and Biodegradation Studies
title_short Crude Oil Degrading Bacteria: Isolation, Growth and Biodegradation Studies
title_full Crude Oil Degrading Bacteria: Isolation, Growth and Biodegradation Studies
title_fullStr Crude Oil Degrading Bacteria: Isolation, Growth and Biodegradation Studies
title_full_unstemmed Crude Oil Degrading Bacteria: Isolation, Growth and Biodegradation Studies
title_sort crude oil degrading bacteria: isolation, growth and biodegradation studies
publishDate 1998
url http://psasir.upm.edu.my/id/eprint/9431/1/FSAS_1998_22_A.pdf
http://psasir.upm.edu.my/id/eprint/9431/
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