Production, functional stability, and effect of rhamnolipid biosurfactant from Klebsiella sp. on phenanthrene degradation in various medium systems
The present study investigated the stability and efficacy of a biosurfactant produced by Klebsiella sp. KOD36 under extreme conditions and its potential for enhancing the solubilization and degradation of phenanthrene in various environmental matrices. Klebsiella sp. KOD36 produced a mono-rhamnolipi...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-01-01
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| Series: | Ecotoxicology and Environmental Safety |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0147651320313518 |
| _version_ | 1818330110829264896 |
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| author | Zulfiqar Ahmad Xuezhi Zhang Muhammad Imran Hua Zhong Shaista Andleeb Rabail Zulekha Guansheng Liu Iftikhar Ahmad Frederic Coulon |
| author_facet | Zulfiqar Ahmad Xuezhi Zhang Muhammad Imran Hua Zhong Shaista Andleeb Rabail Zulekha Guansheng Liu Iftikhar Ahmad Frederic Coulon |
| author_sort | Zulfiqar Ahmad |
| collection | DOAJ |
| description | The present study investigated the stability and efficacy of a biosurfactant produced by Klebsiella sp. KOD36 under extreme conditions and its potential for enhancing the solubilization and degradation of phenanthrene in various environmental matrices. Klebsiella sp. KOD36 produced a mono-rhamnolipids biosurfactant with a low critical micelle concentration (CMC) value. The biosurfactant was stable under extreme conditions (60 °C, pH 10 and 10% salinity) and could lower surface tension by 30% and maintained an emulsification index of > 40%. The emulsion index was also higher (17–43%) in the presence of petroleum hydrocarbons compared to synthetic surfactant Triton X-100. Investigation on phenanthrene degradation in three different environmental matrices (aqueous, soil-slurry and soil) confirmed that the biosurfactant enhanced the solubilization and biodegradation of phenanthrene in all matrices. The high functional stability and performance of the biosurfactant under extreme conditions on phenanthrene degradation show the great potential of the biosurfactant for remediation applications under harsh environmental conditions. |
| first_indexed | 2024-12-13T12:58:45Z |
| format | Article |
| id | doaj.art-ef10a55aa503434bb030203070b45f06 |
| institution | Directory Open Access Journal |
| issn | 0147-6513 |
| language | English |
| last_indexed | 2024-12-13T12:58:45Z |
| publishDate | 2021-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj.art-ef10a55aa503434bb030203070b45f062022-12-21T23:45:06ZengElsevierEcotoxicology and Environmental Safety0147-65132021-01-01207111514Production, functional stability, and effect of rhamnolipid biosurfactant from Klebsiella sp. on phenanthrene degradation in various medium systemsZulfiqar Ahmad0Xuezhi Zhang1Muhammad Imran2Hua Zhong3Shaista Andleeb4Rabail Zulekha5Guansheng Liu6Iftikhar Ahmad7Frederic Coulon8State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, Hubei 430072, China; Key Laboratory for Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, ChinaKey Laboratory for Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, ChinaSoil and Environmental Sciences Division, Nuclear Institute for Agriculture and Biology, Faisalabad 38000, PakistanState Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, Hubei 430072, China; Corresponding author.School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei 430070, ChinaKey Laboratory for Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, ChinaState Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, Hubei 430072, ChinaDepartment of Environmental Sciences, COMSATS Institute of Information Technology, Vehari 61100, PakistanSchool of Water, Energy and Environment, Cranfield University, Cranfield, Bedfordshire MK43 0AL, UKThe present study investigated the stability and efficacy of a biosurfactant produced by Klebsiella sp. KOD36 under extreme conditions and its potential for enhancing the solubilization and degradation of phenanthrene in various environmental matrices. Klebsiella sp. KOD36 produced a mono-rhamnolipids biosurfactant with a low critical micelle concentration (CMC) value. The biosurfactant was stable under extreme conditions (60 °C, pH 10 and 10% salinity) and could lower surface tension by 30% and maintained an emulsification index of > 40%. The emulsion index was also higher (17–43%) in the presence of petroleum hydrocarbons compared to synthetic surfactant Triton X-100. Investigation on phenanthrene degradation in three different environmental matrices (aqueous, soil-slurry and soil) confirmed that the biosurfactant enhanced the solubilization and biodegradation of phenanthrene in all matrices. The high functional stability and performance of the biosurfactant under extreme conditions on phenanthrene degradation show the great potential of the biosurfactant for remediation applications under harsh environmental conditions.http://www.sciencedirect.com/science/article/pii/S0147651320313518Mono-rhamnolipidsKlebsiella sp.BiodegradationEmulsification indexSurface tensionHydrocarbons |
| spellingShingle | Zulfiqar Ahmad Xuezhi Zhang Muhammad Imran Hua Zhong Shaista Andleeb Rabail Zulekha Guansheng Liu Iftikhar Ahmad Frederic Coulon Production, functional stability, and effect of rhamnolipid biosurfactant from Klebsiella sp. on phenanthrene degradation in various medium systems Ecotoxicology and Environmental Safety Mono-rhamnolipids Klebsiella sp. Biodegradation Emulsification index Surface tension Hydrocarbons |
| title | Production, functional stability, and effect of rhamnolipid biosurfactant from Klebsiella sp. on phenanthrene degradation in various medium systems |
| title_full | Production, functional stability, and effect of rhamnolipid biosurfactant from Klebsiella sp. on phenanthrene degradation in various medium systems |
| title_fullStr | Production, functional stability, and effect of rhamnolipid biosurfactant from Klebsiella sp. on phenanthrene degradation in various medium systems |
| title_full_unstemmed | Production, functional stability, and effect of rhamnolipid biosurfactant from Klebsiella sp. on phenanthrene degradation in various medium systems |
| title_short | Production, functional stability, and effect of rhamnolipid biosurfactant from Klebsiella sp. on phenanthrene degradation in various medium systems |
| title_sort | production functional stability and effect of rhamnolipid biosurfactant from klebsiella sp on phenanthrene degradation in various medium systems |
| topic | Mono-rhamnolipids Klebsiella sp. Biodegradation Emulsification index Surface tension Hydrocarbons |
| url | http://www.sciencedirect.com/science/article/pii/S0147651320313518 |
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