Effect of Natural Blue-Green Algal Cells Lysis on Freshwater Quality

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dc.contributor.authorKilulya, Kessy F.
dc.contributor.authorMsagati, Titus A.M.
dc.contributor.authorMamba, Bhekie B.
dc.date.accessioned2018-10-04T12:27:43Z
dc.date.available2018-10-04T12:27:43Z
dc.date.issued2017
dc.description.abstractBlue-green algae grow in freshwater bodies when they are provided with suitable factors such as nutrients and appropriate weather conditions. Their cell lysis occurs naturally when they encounter unfavourable conditions. This study reports on the types and amounts of fatty acids added into freshwater due to the algal cell lysis. The investigation on the amount of fatty acids released into water due to algal cells lysis was performed by placing samples in two compartments, one with no light allowing the algae cells to die while the other compartment was kept in favourable conditions enough to sustain the life of algae. Fatty acids were then extracted from both dead and living cells as well as their respective water filtrates. Determination of fatty acids was performed using GCxGC-TOF-MS. Identified fatty acids were mainly; tetradecanoic acid, 7-hexadecenoic acid, hexadecanoic acid, 9,12,15-octadecatrienoic acid, 6,9,12,15-octadecatetraenoic acid, 9,12-octadecadienoic, 9-octadecenoic and octadecanoic acids. It was found that water from the dead cells had higher amounts of fatty acids than water samples from the living cells. Unsaturated fatty acids increased from 0.85 mg/L to 2.70 mg/L in filtrate water from the dead algae. The pH of water samples from the dead cells decreased from 6.8 to 6.1en_US
dc.identifier.citationKilulya, Kessy, Titus Msagati, and Bhekie Mamba. "Effect of natural blue-green algal cells lysis on freshwater quality." Tanzania Journal of Science 43.1 (2017): 83-94en_US
dc.identifier.urihttp://hdl.handle.net/20.500.11810/4938
dc.language.isoenen_US
dc.publisherCoNAS - UDSMen_US
dc.subjectAlgaeen_US
dc.subjectcells lysisen_US
dc.subjectFatty acidsen_US
dc.subjectgas chromatography time-of-flight mass spectrometryen_US
dc.subjectwater qualityen_US
dc.titleEffect of Natural Blue-Green Algal Cells Lysis on Freshwater Qualityen_US
dc.typeJournal Article, Peer Revieweden_US
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