Isolation and characterization of biosurfactant production under extreme environmental conditions by alkali-halo-thermophilic bacteria from Saudi Arabia
Joint Authors
al-Azzazi, Ahmad M.
Abd al-Munim, T. S.
al-Maghribi, O. A.
Source
Saudi Journal of Biological Sciences
Issue
Vol. 22, Issue 4 (31 Dec. 2015), pp.466-475, 10 p.
Publisher
Publication Date
2015-12-31
Country of Publication
Saudi Arabia
No. of Pages
10
Main Subjects
Earth Sciences, Water and Environment
Abstract EN
Twenty three morphologically distinct microbial colonies were isolated from soil and sea water samples, which were collected from Jeddah region, Saudi Arabia for screening of the most potent biosurfactant strains.
The isolated bacteria were selected by using different methods as drop collapse test, oil displacement test, blue agar test, blood hemolysis test, emulsification activity and surface tension.
The results showed that the ability of Virgibacillus salarius to grow and reduce surface tension under a wide range of pH, salinities and temperatures gives bacteria isolate an advantage in many applications such as pharmaceutical, cosmetics, food industries and bioremediation in marine environment.
The biosurfactant production by V.
salarius decreased surface tension and emulsifying activity (30 mN/m and 80%, respectively).
In addition to reducing the production cost of biosurfactants by tested several plant-derived oils such as jatropha oil, castor oils, jojoba oil, canola oil and cottonseed oil.
In this respect the feasibility to reusing old frying oil of sunflower for production rhamnolipids and sophorolipids, their use that lead to solve many ecological and industrial problems.
ª 2014 Production and hosting by Elsevier B.V.
on behalf of King Saud University.
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/).
American Psychological Association (APA)
al-Azzazi, Ahmad M.& Abd al-Munim, T. S.& al-Maghribi, O. A.. 2015. Isolation and characterization of biosurfactant production under extreme environmental conditions by alkali-halo-thermophilic bacteria from Saudi Arabia. Saudi Journal of Biological Sciences،Vol. 22, no. 4, pp.466-475.
https://search.emarefa.net/detail/BIM-577475
Modern Language Association (MLA)
al-Maghribi, O. A.…[et al.]. Isolation and characterization of biosurfactant production under extreme environmental conditions by alkali-halo-thermophilic bacteria from Saudi Arabia. Saudi Journal of Biological Sciences Vol. 22, no. 4 (2015), pp.466-475.
https://search.emarefa.net/detail/BIM-577475
American Medical Association (AMA)
al-Azzazi, Ahmad M.& Abd al-Munim, T. S.& al-Maghribi, O. A.. Isolation and characterization of biosurfactant production under extreme environmental conditions by alkali-halo-thermophilic bacteria from Saudi Arabia. Saudi Journal of Biological Sciences. 2015. Vol. 22, no. 4, pp.466-475.
https://search.emarefa.net/detail/BIM-577475
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 474-475
Record ID
BIM-577475