Beta
209019

ISOLATION AND CHARACTERIZATION OF BIOSURFACTANTS FROM BACTERIAL STRAINS FOUND IN MARINE OIL POLLUTED-WATER SAMPLES

Article

Last updated: 03 Jan 2025

Subjects

-

Tags

Basic Sciences

Abstract

Petroleum hydrocarbons are the most common environmental pollutants and oil spills pose a great hazard to terrestrial and marine ecosystems. In the current study two oil-contaminated water samples from Gemsa Company and Adabiya Suez Port were collected. Some different physico- chemical properties of the contaminated water samples were characterized. The extraction and characterization of oil from studied samples were performed. Nine bacterial strains were isolated from the contaminated samples. The bacterial isolates were screened for the production of biosurfactants. Two promising bacterial strains (B3 and B4) were selected from bacterial isolates according to the highest oil displacement test, emulsification power and the lowest surface tension results. The biosurfactants were recovered from the cultural media of (B3 and B4) at 1.1 and 1.3 g/L respectively. These bacterial isolates were identified using molecular identification performed by 16S rRNA gene sequences. The results indicated that the two isolated bacteria (B3 and B4) belong to Bacillus flexus and Gelidibacter japonicus respectively. The characterization of the produced biosurfactants were determined by FTIR analysis. The result of FTIR analysis, indicated that the biosurfactants obtained from Bacillus flexus and Gelidibacter japonicus are mainly a complex lipopeptides with a small fraction of glycolipids called polymeric biosurfactants.  

DOI

10.21608/jes.2021.209019

Keywords

Key words: Oil pollution, biodegradation, biosurfactants, Fourier transform infrared (FTIR) analysis

Authors

First Name

G. Hassaan

Last Name

Mohammad

MiddleName

-

Affiliation

Petroleum Marine Services Company

Email

-

City

-

Orcid

-

First Name

S. El-Sheshtawy

Last Name

Hoda

MiddleName

-

Affiliation

Institute of Egyptian Petroleum Research

Email

-

City

-

Orcid

-

First Name

M. Khalil

Last Name

Naglaa

MiddleName

-

Affiliation

Institute of Egyptian Petroleum Research

Email

-

City

-

Orcid

-

First Name

I. Hashem

Last Name

Ahmed

MiddleName

-

Affiliation

Chemistry Department, Faculty of Science, Ain Shams University

Email

-

City

-

Orcid

-

Volume

50

Article Issue

11

Related Issue

29329

Issue Date

2021-11-01

Receive Date

2021-11-13

Publish Date

2021-11-01

Page Start

413

Page End

442

Print ISSN

1110-0826

Online ISSN

2636-3178

Link

https://jes.journals.ekb.eg/article_209019.html

Detail API

https://jes.journals.ekb.eg/service?article_code=209019

Order

3

Type

Review Article

Type Code

599

Publication Type

Journal

Publication Title

Journal of Environmental Science

Publication Link

https://jes.journals.ekb.eg/

MainTitle

ISOLATION AND CHARACTERIZATION OF BIOSURFACTANTS FROM BACTERIAL STRAINS FOUND IN MARINE OIL POLLUTED-WATER SAMPLES

Details

Type

Article

Created At

22 Jan 2023