Cleaning potential of surfaction of fouled ultrafiltration (UF) membranes
Biosurfactants are microbially produced surface active agents that offer better biodegradability and lower toxicity than chemically synthesized surfactants because of their biogenetic origin. One of the most surface-active biosurfactants known is surfactin, a cyclic lipopeptide produced by various s...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Universiti Kebangsaan Malaysia
2012
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| Online Access: | http://journalarticle.ukm.my/5474/ http://journalarticle.ukm.my/5474/1/10%2520Mohd%2520Hafez.pdf |
| _version_ | 1848810836588494848 |
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| author | Mohd Hafez Mohd Isa, Richard A. Frazier, Paula Jauregi, |
| author_facet | Mohd Hafez Mohd Isa, Richard A. Frazier, Paula Jauregi, |
| author_sort | Mohd Hafez Mohd Isa, |
| building | UKM Institutional Repository |
| collection | Online Access |
| description | Biosurfactants are microbially produced surface active agents that offer better biodegradability and lower toxicity than chemically synthesized surfactants because of their biogenetic origin. One of the most surface-active biosurfactants known is surfactin, a cyclic lipopeptide produced by various strains of Bacillus subtilis. In this study, the cleaning potential of surfactin on ultrafiltration (UF) membranes fouled with BSA was studied using centrifugal UF devices of 50 kDa and 100 kDa MWCO polyethersulfone (PES) membranes. Mechanisms of bovine serum albumin (BSA) displacement by surfactin on fouled UF membranes were studied using dynamic light scattering (DLS) technique and surface tension measurements. Hydrodynamic diameter and surface tension measurements of BSA-surfactin mixtures showed that the surfactin was efficient in displacing BSA fouled on UF membranes due to strong electrostatic repulsive interactions involved at pH8.5. This study demonstrated that surfactin can be used to effectively clean fouled UF membranes |
| first_indexed | 2025-11-14T23:36:50Z |
| format | Article |
| id | oai:generic.eprints.org:5474 |
| institution | Universiti Kebangasaan Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T23:36:50Z |
| publishDate | 2012 |
| publisher | Universiti Kebangsaan Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:generic.eprints.org:54742016-12-14T06:38:33Z http://journalarticle.ukm.my/5474/ Cleaning potential of surfaction of fouled ultrafiltration (UF) membranes Mohd Hafez Mohd Isa, Richard A. Frazier, Paula Jauregi, Biosurfactants are microbially produced surface active agents that offer better biodegradability and lower toxicity than chemically synthesized surfactants because of their biogenetic origin. One of the most surface-active biosurfactants known is surfactin, a cyclic lipopeptide produced by various strains of Bacillus subtilis. In this study, the cleaning potential of surfactin on ultrafiltration (UF) membranes fouled with BSA was studied using centrifugal UF devices of 50 kDa and 100 kDa MWCO polyethersulfone (PES) membranes. Mechanisms of bovine serum albumin (BSA) displacement by surfactin on fouled UF membranes were studied using dynamic light scattering (DLS) technique and surface tension measurements. Hydrodynamic diameter and surface tension measurements of BSA-surfactin mixtures showed that the surfactin was efficient in displacing BSA fouled on UF membranes due to strong electrostatic repulsive interactions involved at pH8.5. This study demonstrated that surfactin can be used to effectively clean fouled UF membranes Universiti Kebangsaan Malaysia 2012-09 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/5474/1/10%2520Mohd%2520Hafez.pdf Mohd Hafez Mohd Isa, and Richard A. Frazier, and Paula Jauregi, (2012) Cleaning potential of surfaction of fouled ultrafiltration (UF) membranes. Sains Malaysiana, 41 (9). pp. 1117-1124. ISSN 0126-6039 http://www.ukm.my/jsm/ |
| spellingShingle | Mohd Hafez Mohd Isa, Richard A. Frazier, Paula Jauregi, Cleaning potential of surfaction of fouled ultrafiltration (UF) membranes |
| title | Cleaning potential of surfaction of fouled ultrafiltration (UF) membranes |
| title_full | Cleaning potential of surfaction of fouled ultrafiltration (UF) membranes |
| title_fullStr | Cleaning potential of surfaction of fouled ultrafiltration (UF) membranes |
| title_full_unstemmed | Cleaning potential of surfaction of fouled ultrafiltration (UF) membranes |
| title_short | Cleaning potential of surfaction of fouled ultrafiltration (UF) membranes |
| title_sort | cleaning potential of surfaction of fouled ultrafiltration (uf) membranes |
| url | http://journalarticle.ukm.my/5474/ http://journalarticle.ukm.my/5474/ http://journalarticle.ukm.my/5474/1/10%2520Mohd%2520Hafez.pdf |