Cation-exchange capacity of algae and cyanobacteria: A parameter of their metal sorption abilities

The potential metal sorption abilities of algae and cyanobacteria were estimated as cation-exchange capacities, using a potentiometric titration method. Unicellular cyanobacteria Anacystis nidulans, Synechocystis aquatilis, and the green microalga Stichococcus bacillaris revealed a higher maximal ca...

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Bibliographic Details
Published in:Journal of Industrial Microbiology 1995-03, Vol.14 (3-4), p.319-322
Main Authors: Pirszel, Jacek, Pawlik, Barbara, Skowroński, Tadeusz
Format: Article
Language:English
Subjects:
Anacystis nidulans
Freshwater
Marine
Stichococcus bacillaris
Synechocystis aquatilis
Vaucheria
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Summary:The potential metal sorption abilities of algae and cyanobacteria were estimated as cation-exchange capacities, using a potentiometric titration method. Unicellular cyanobacteria Anacystis nidulans, Synechocystis aquatilis, and the green microalga Stichococcus bacillaris revealed a higher maximal capacity (205-825 mu eq g super(-1) dry wt) than filamentous macroalga Vaucheria sp. (Xanthophyceae, 41 mu eq g super(-1) dry wt). The cation-exchange capacity decreased when external pH decreased. Different ion-exchange properties of cell surfaces of cyanobacteria and algae were observed.
ISSN:0169-4146
1476-5535
DOI:10.1007/BF01569945