Production and properties of a biosurfactant obtained from a member of the Bacillus subtilis group (PTCC 1696)
The production and properties of a biosurfactant, synthesized by a member of the Bacillus subtilis group (PTCC 1696) which was isolated from an Iranian oil field, have been investigated. The biosurfactant, which was produced as a primary metabolite associated with the growth of PTCC 1696, was able t...
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| Veröffentlicht in: | Journal of colloid and interface science 2008-08, Vol.324 (1), p.172-176 |
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| container_end_page | 176 |
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| container_issue | 1 |
| container_start_page | 172 |
| container_title | Journal of colloid and interface science |
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| creator | Ghojavand, Hossein Vahabzadeh, Farzaneh Roayaei, Emad Shahraki, Alireza Khodabandeh |
| description | The production and properties of a biosurfactant, synthesized by a member of the
Bacillus subtilis group (PTCC 1696) which was isolated from an Iranian oil field, have been investigated. The biosurfactant, which was produced as a primary metabolite associated with the growth of PTCC 1696, was able to reduce the surface and interfacial tension of media to 26.7 and 0.1 mN/m, respectively. Crude biosurfactant and acid precipitated biosurfactant have critical micelle concentrations of 10 and 100 μg/ml, respectively. The stability of the biosurfactant at different salinities, pH and temperature and also its emulsifying activity have been investigated. It is an effective surfactant at very low concentrations over a wide range of temperatures, pHs and salt concentrations and also has the ability to emulsify oil, which is essential for enhanced oil recovery. |
| doi_str_mv | 10.1016/j.jcis.2008.05.001 |
| format | Article |
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Bacillus subtilis group (PTCC 1696) which was isolated from an Iranian oil field, have been investigated. The biosurfactant, which was produced as a primary metabolite associated with the growth of PTCC 1696, was able to reduce the surface and interfacial tension of media to 26.7 and 0.1 mN/m, respectively. Crude biosurfactant and acid precipitated biosurfactant have critical micelle concentrations of 10 and 100 μg/ml, respectively. The stability of the biosurfactant at different salinities, pH and temperature and also its emulsifying activity have been investigated. It is an effective surfactant at very low concentrations over a wide range of temperatures, pHs and salt concentrations and also has the ability to emulsify oil, which is essential for enhanced oil recovery.</description><subject>Bacillus subtilis</subject><subject>Bacillus subtilis - chemistry</subject><subject>Biosurfactant</subject><subject>Chemistry</subject><subject>Colloidal state and disperse state</subject><subject>Critical micelle concentration</subject><subject>Emulsification</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Hydrogen-Ion Concentration</subject><subject>Industrial Microbiology</subject><subject>Interfacial tension</subject><subject>Micelles. 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Thin films</topic><topic>Petroleum</topic><topic>Salts</topic><topic>Surface physical chemistry</topic><topic>Surface Tension</topic><topic>Surface-Active Agents - isolation & purification</topic><topic>Temperature</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ghojavand, Hossein</creatorcontrib><creatorcontrib>Vahabzadeh, Farzaneh</creatorcontrib><creatorcontrib>Roayaei, Emad</creatorcontrib><creatorcontrib>Shahraki, Alireza Khodabandeh</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of colloid and interface science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ghojavand, Hossein</au><au>Vahabzadeh, Farzaneh</au><au>Roayaei, Emad</au><au>Shahraki, Alireza Khodabandeh</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Production and properties of a biosurfactant obtained from a member of the Bacillus subtilis group (PTCC 1696)</atitle><jtitle>Journal of colloid and interface science</jtitle><addtitle>J Colloid Interface Sci</addtitle><date>2008-08-01</date><risdate>2008</risdate><volume>324</volume><issue>1</issue><spage>172</spage><epage>176</epage><pages>172-176</pages><issn>0021-9797</issn><eissn>1095-7103</eissn><coden>JCISA5</coden><abstract>The production and properties of a biosurfactant, synthesized by a member of the
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| source | MEDLINE; Access via ScienceDirect (Elsevier) |
| subjects | Bacillus subtilis Bacillus subtilis - chemistry Biosurfactant Chemistry Colloidal state and disperse state Critical micelle concentration Emulsification Exact sciences and technology General and physical chemistry Hydrogen-Ion Concentration Industrial Microbiology Interfacial tension Micelles. Thin films Petroleum Salts Surface physical chemistry Surface Tension Surface-Active Agents - isolation & purification Temperature |
| title | Production and properties of a biosurfactant obtained from a member of the Bacillus subtilis group (PTCC 1696) |
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