Bacterial degradation of palm olein in seawater and identification of some cultivable strains

Palm oil transported in bulk through ocean can increase pollution risks due to accidental spillage or ship collision, especially the refined, bleached and deodorized (RBD) palm olein. Bacterial degradation of RBD palm olein in seawater was investigated as a preliminary finding on palm oil degradat...

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Main Authors:	Bhubalan K., Hui-Wan, R.A.C., Renganathan P., Tamothran A.M., Ganesen S.S.K., Ghazali R.
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2019
Online Access:	http://journalarticle.ukm.my/12798/ http://journalarticle.ukm.my/12798/ http://journalarticle.ukm.my/12798/1/48_01_29.pdf

id	ukm-12798
recordtype	eprints
spelling	ukm-127982019-04-16T09:11:09Z http://journalarticle.ukm.my/12798/ Bacterial degradation of palm olein in seawater and identification of some cultivable strains Bhubalan K., Hui-Wan, R.A.C. Renganathan P., Tamothran A.M., Ganesen S.S.K., Ghazali R., Palm oil transported in bulk through ocean can increase pollution risks due to accidental spillage or ship collision, especially the refined, bleached and deodorized (RBD) palm olein. Bacterial degradation of RBD palm olein in seawater was investigated as a preliminary finding on palm oil degradation by marine bacteria. The degradation of RBD palm olein was evaluated in seawater in shaken-flask cultures with different oil concentrations. Biochemical oxygen demand (BOD) in the seawater was determined based on changes in dissolved oxygen (DO) values before and at end of 5-day incubation. The concentrations of major fatty acid components in RBD palm olein before and after degradation were determined using gas chromatographyflame ionization detector (GC-FID). Isolated bacteria were screened for lipolytic activity using Spirit Blue Agar before molecular identification. The DO content reduced 20% over a 5-day incubation period and BOD value was determined to be 1.24 mg O2/L based on DO values. The concentrations of fatty acids, namely palmitic acid (C16:0), stearic acid (C18:0) and oleic acid (C18:1) decreased by 53%, 31% and 37%, respectively. The bacterial count increased from 980 CFU/mL during inoculation to 1.8 x 104 CFU/mL on day 5. Five phenotypically different bacterial strains (Pseudoalteromonas gelatinolytica, Staphylococcus haemolyticus, Vibrio harveyi and Vibrio alginolyticus) showed lipolytic activity. This study indicates that marine bacteria utilizes RBD palm olein as substrate, thus degrading it over time. Penerbit Universiti Kebangsaan Malaysia 2019-03 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/12798/1/48_01_29.pdf Bhubalan K., and Hui-Wan, R.A.C. and Renganathan P., and Tamothran A.M., and Ganesen S.S.K., and Ghazali R., (2019) Bacterial degradation of palm olein in seawater and identification of some cultivable strains. Malaysian Applied Biology, 48 (1). pp. 207-213. ISSN 0126-8643 http://mabjournal.com/index.php?option=com_content&view=article&id=897&catid=59:current-view&Itemid=56
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	Palm oil transported in bulk through ocean can increase pollution risks due to accidental spillage or ship collision, especially the refined, bleached and deodorized (RBD) palm olein. Bacterial degradation of RBD palm olein in seawater was investigated as a preliminary finding on palm oil degradation by marine bacteria. The degradation of RBD palm olein was evaluated in seawater in shaken-flask cultures with different oil concentrations. Biochemical oxygen demand (BOD) in the seawater was determined based on changes in dissolved oxygen (DO) values before and at end of 5-day incubation. The concentrations of major fatty acid components in RBD palm olein before and after degradation were determined using gas chromatographyflame ionization detector (GC-FID). Isolated bacteria were screened for lipolytic activity using Spirit Blue Agar before molecular identification. The DO content reduced 20% over a 5-day incubation period and BOD value was determined to be 1.24 mg O2/L based on DO values. The concentrations of fatty acids, namely palmitic acid (C16:0), stearic acid (C18:0) and oleic acid (C18:1) decreased by 53%, 31% and 37%, respectively. The bacterial count increased from 980 CFU/mL during inoculation to 1.8 x 104 CFU/mL on day 5. Five phenotypically different bacterial strains (Pseudoalteromonas gelatinolytica, Staphylococcus haemolyticus, Vibrio harveyi and Vibrio alginolyticus) showed lipolytic activity. This study indicates that marine bacteria utilizes RBD palm olein as substrate, thus degrading it over time.
format	Article
author	Bhubalan K., Hui-Wan, R.A.C. Renganathan P., Tamothran A.M., Ganesen S.S.K., Ghazali R.,
spellingShingle	Bhubalan K., Hui-Wan, R.A.C. Renganathan P., Tamothran A.M., Ganesen S.S.K., Ghazali R., Bacterial degradation of palm olein in seawater and identification of some cultivable strains
author_facet	Bhubalan K., Hui-Wan, R.A.C. Renganathan P., Tamothran A.M., Ganesen S.S.K., Ghazali R.,
author_sort	Bhubalan K.,
title	Bacterial degradation of palm olein in seawater and identification of some cultivable strains
title_short	Bacterial degradation of palm olein in seawater and identification of some cultivable strains
title_full	Bacterial degradation of palm olein in seawater and identification of some cultivable strains
title_fullStr	Bacterial degradation of palm olein in seawater and identification of some cultivable strains
title_full_unstemmed	Bacterial degradation of palm olein in seawater and identification of some cultivable strains
title_sort	bacterial degradation of palm olein in seawater and identification of some cultivable strains
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2019
url	http://journalarticle.ukm.my/12798/ http://journalarticle.ukm.my/12798/ http://journalarticle.ukm.my/12798/1/48_01_29.pdf
first_indexed	2023-09-18T20:03:24Z
last_indexed	2023-09-18T20:03:24Z
_version_	1777406998866821120

Bacterial degradation of palm olein in seawater and identification of some cultivable strains

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