Chemosphere, volume 70, issue 11, pages 2047-2053

Biotransformation of ethinylestradiol by microalgae

M Della Greca 1
G. A. Pinto 2
P Pistillo 1
Antonino Pollio 2
L Previtera 1
Fabio Temussi 1
2
 
Dipartimento delle Scienze Biologiche, Sezione di Biologia Vegetale, Università Federico II, Via Foria 223, I-80139 Napoli, Italy
Publication typeJournal Article
Publication date2008-02-01
Journal: Chemosphere
scimago Q1
wos Q1
SJR1.806
CiteScore15.8
Impact factor8.1
ISSN00456535, 18791298
General Chemistry
General Medicine
Environmental Chemistry
Environmental Engineering
Health, Toxicology and Mutagenesis
Public Health, Environmental and Occupational Health
Pollution
Abstract
The capability of biotransformation of 11 microalgae strains was tested on ethinylestradiol (EE). Seven strains were ineffective whilst Selenastrum capricornutum, Scenedesmus quadricauda, Scenedesmus vacuolatus and Ankistrodesmus braunii biotransformed the substrate. EE was converted by S. capricornutum in three products (ethinylestradiol glucoside, 3-beta-D-glucopyranosyl-2-hydroxyethinylestradiol, and 3-beta-D-glucopyranosyl-6beta-hydroxyethinyl estradiol) in 40%, 5%, and 5% yields, respectively. S. quadricauda transformed EE into 17alpha-ethinyl-1,4-estradien-10,17beta-diol-3-one (12%) and A. braunii transformed EE into 6-alpha-hydroxy-ethinylestradiol (25%). It is noteworthy that EE is converted in 92% yield in ethinylestradiol glucoside by S. capricornutum when using optimal algal density conditions.

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