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AuthorBen Ouada, Sabrine
AuthorBen Ali, Rihab
AuthorCimetiere, Nicolas
AuthorLeboulanger, Christophe
AuthorOuada, HatemBen
AuthorSayadi, Sami
Available date2020-09-22T09:24:49Z
Publication Date2019
Publication NameEcotoxicology and Environmental Safety
Identifierhttp://dx.doi.org/10.1016/j.ecoenv.2019.109769
CitationSB Ouada, RB Ali, N Cimetiere, C Leboulanger, HB Ouada, S Sayadi. (2019). Biodegradation of diclofenac by two green microalgae: Picocystis sp. and Graesiella sp. Ecotoxicology and Environmental Safety 186, 109769
URIhttp://hdl.handle.net/10576/16233
AbstractThe aim of the present study was to provide an integrated view of algal removal of diclofenac (DCF). Two isolated microalgal strains Picocystis sp. and Graesiella sp. were cultivated under different DCF concentrations and their growth, photosynthetic activity and diclofenac removal efficiency were monitored. Results showed that DCF had slight inhibitory effects on the microalgal growth which did not exceed 21% for Picocystis and 36% for Graesiella after 5 days. Both species showed different patterns in terms of removal efficiency. In presence of Picocystis sp., the amounts of removed DCF were up to 73%, 43% and 25% of 25, 50 and 100?mg?L?1 respectively; whereas only 52%, 28% and 24% were removed in the presence of Graesiella at same DCF tested concentrations. DCF removal was insured mainly by biodegradation. To better reveal the mechanism involved, metabolites analyses were performed. Two DCF biodegradation/biotransformation products were detected in presence of Picocystis. This study indicated that Picocystis performed a satisfactory growth capacity and DCF removal efficiency and thus could be used for treatment of DCF contaminated aqueous systems.
Languageen
PublisherElsevier
SubjectMicroalgae
Extremophiles
Diclofenac
Removal
Biodegradation
Biotransformation
TitleBiodegradation of diclofenac by two green microalgae: Picocystis sp. and Graesiella sp.
TypeArticle
Volume Number186
dc.accessType Abstract Only


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