Full metadata record
DC Field | Value | Language |
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dc.contributor.author | 전병훈 | - |
dc.date.accessioned | 2019-11-24T18:45:53Z | - |
dc.date.available | 2019-11-24T18:45:53Z | - |
dc.date.issued | 2017-04 | - |
dc.identifier.citation | CHEMICAL ENGINEERING JOURNAL, v. 313, page. 1251-1257 | en_US |
dc.identifier.issn | 1385-8947 | - |
dc.identifier.issn | 1873-3212 | - |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S1385894716315790?via%3Dihub | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/113849 | - |
dc.description.abstract | The extensive contamination of levofloxacin (LEV) in aquatic ecosystems has attracted increasing attention because of the potential for development of bacterial resistance and its eco-toxicity to non-target organisms. Biodegradation of LEV was significantly improved upon the acclimation of a freshwater microalga, Chlorella vulgaris and in the presence of elevated salinity. Among the six wild species (Chlamydomonas mexicana, Chlamydomonas pitschmannii, Chlorella vulgaris, Ourococcus multisporus, Micractinium resseri, Tribonema aequale), C vulgaris showed the highest removal capacity (12%) of LEV at 1 mg L-1. The acclimated C vulgaris, which was pre-exposed to 200 mg L-1 of LEV for 11 days, exhibited enhanced removal of 1 mg LEV L-1 by 16% after 11 days of cultivation. The addition of 1% (w/v) sodium chloride into the microalgal media significantly improved LEV removal by > 80% in the C vulgaris culture. The bioaccumulation of LEV at day 11 in C vulgaris cells without NaCI was 34 rg g-1, which was elevated to 101 mu g g(-1) LEV at 1% NaCl. The bioconcentration factor for LEV was 34 and 1004 in 0 and 1% NaCl, respectively. The mass balance analysis of LEV showed that more than 90% of LEV was biodegraded by C vulgaris at day 11 with the addition of 1% NaCI. These results demonstrated that the enhanced removal of LEV by salinity was mainly through bioaccumulation and subsequent intracellular biodegradation by C vulgaris cells.(C) 2016 Elsevier B.V. All rights reserved. | en_US |
dc.description.sponsorship | This study was supported by the National Research Foundation of Korea (NRF) Grant funded by the South Korean government (MSIP) (No. NRF-2013R1A2A2A07069183). | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | ELSEVIER SCIENCE SA | en_US |
dc.subject | Emerging contaminant | en_US |
dc.subject | Levofloxacin | en_US |
dc.subject | Chlorella vulgaris | en_US |
dc.subject | Biodegradation | en_US |
dc.subject | Acclimation | en_US |
dc.subject | Salinity | en_US |
dc.title | Biodegradation of levofloxacin by an acclimated freshwater microalga, Chlorella vulgaris | en_US |
dc.type | Article | en_US |
dc.relation.volume | 313 | - |
dc.identifier.doi | 10.1016/j.cej.2016.11.017 | - |
dc.relation.page | 1251-1257 | - |
dc.relation.journal | CHEMICAL ENGINEERING JOURNAL | - |
dc.contributor.googleauthor | Xiong, Jiu-Qiang | - |
dc.contributor.googleauthor | Kurade, Mayur B. | - |
dc.contributor.googleauthor | Jeon, Byong-Hun | - |
dc.relation.code | 2017002636 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF EARTH RESOURCES AND ENVIRONMENTAL ENGINEERING | - |
dc.identifier.pid | bhjeon | - |
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