Ecotoxicity analysis of cholinium-based ionic liquids to Vibrio fischeri marine bacteria

abstract

Cholinium-based ionic liquids are quaternary ammonium salts with a wide range of potential industrial applications. Based on the fact that the cholinium is a complex B vitamin and widely used as food additive, the cholinium-based ionic liquids are generically regarded as environmentally "harmless" and thus, accepted as "non-toxic", although their ecotoxicological profile is poorly known. This work provides new ecotoxicological data for ten cholinium-based salts and ionic liquids, aiming to extend the surprisingly restricted body of knowledge about the ecotoxicity of this particular family and to gain insight on the toxicity mechanism of these compounds. The results reported here show that not all the cholinium tested can be considered harmless towards the test organism adopted. Moreover, the results suggest that the cholinium family exhibits a different mechanism of toxicity as compared to the imidazolium ionic liquids previously described in the literature. (C) 2014 Elsevier Inc. All rights reserved.

keywords

DEEP-EUTECTIC-SOLVENTS; FUNCTIONALIZED SIDE-CHAINS; AQUEOUS 2-PHASE SYSTEMS; DIFFERENT HEAD GROUPS; ACETYLCHOLINESTERASE ENZYME; ANTIMICROBIAL ACTIVITY; TOXICITY EVALUATION; IMIDAZOLIUM; WATER; SALTS

subject category

Environmental Sciences & Ecology; Toxicology

authors

Ventura, SPM; Silva, FAE; Goncalves, AMM; Pereira, JL; Goncalves, F; Coutinho, JAP

our authors

acknowledgements

The authors are grateful for the financial support from FEDER funds through the program COMPETE and for national fund through the Portuguese Foundation for Science and Technology (FCT) under the scope of the Projects Pest-C/CTM/LA0011/2013 and PTDC/AAC-AMB/119172/2010. The authors also thank the financial support of FCT considering the post-doctoral Grants SFRH/BPD/79263/2011, SFRH/BPD/79307/2011 and SFRH/BPD/44733/2008 of S.P.M. Ventura, A.M.M. Goncalves and J.L. Pereira, respectively.

Share this project:

Related Publications

We use cookies for marketing activities and to offer you a better experience. By clicking “Accept Cookies” you agree with our cookie policy. Read about how we use cookies by clicking "Privacy and Cookie Policy".