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The effect of microplastics pollution in microalgal biomass production: a biochemical study

2020Journal article Open access
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dc.contributor.authorCunha, César
dc.contributor.authorLopes, Joana
dc.contributor.authorPaulo, Jorge
dc.contributor.authorFaria, Marisa
dc.contributor.authorKaufmann, Manfred
dc.contributor.authorNogueira, Natacha
dc.contributor.authorFerreira, Artur
dc.contributor.authorCordeiro, Nereida
dc.date.accessioned2021-04-13T14:58:49Z
dc.date.available2021-04-13T14:58:49Z
dc.date.issued2020
dc.description.abstractMicroplastics (MPs) are widely spread throughout aquatic systems and water bodies. Given that water quality is one of the most important parameters in the microalgal-based industry, it is critical to assess the biochemical impact of short- and long-term exposure to MPs pollution. Here, the microalga Phaeodactylum tricornutum was exposed to water contaminated with 0.5 and 50 mg L-1 of polystyrene (PS) and/or polymethyl methacrylate (PMMA). Results show that the microalgal cultures exposed to lower concentrations of PS displayed a growth enhancement of up to 73% in the first stage (days 3-9) of the exponential growth phase. Surprisingly, and despite the fact that long-term exposure to MPs contamination did not impair microalgal growth, a steep decrease in biomass production (of up to 82%) was observed. The production of photosynthetic pigments was shown to be pH-correlated during the full growth cycle, but cell density-independent in later stages of culturing. The extracellular carbohydrates production exhibited a major decrease during long-term exposure. Still, the production of extracellular proteins was not affected by the presence of MPs. This pilot laboratory-scale study shows that the microalgal exposure to water contaminated with MPs disturbs its biochemical equilibrium in a time-dependent manner, decreasing biomass production. Thus, microalgal industry-related consequences derived from the use of MPs-contaminated water are a plausible possibility.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCunha, C., Lopes, J., Paulo, J., Faria, M., Kaufmann, M., Nogueira, N., ... & Cordeiro, N. (2020). The effect of microplastics pollution in microalgal biomass production: A biochemical study. Water Research, 186, 116370.pt_PT
dc.identifier.doi10.1016/j.watres.2020.116370pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/3283
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectMicroplastics contaminationpt_PT
dc.subjectPolystyrenept_PT
dc.subjectPolymethyl methacrylatept_PT
dc.subjectMicroalgaept_PT
dc.subjectPhaeodactylum tricornutumpt_PT
dc.subjectBiomasspt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências Exatas e da Engenhariapt_PT
dc.titleThe effect of microplastics pollution in microalgal biomass production: a biochemical studypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage116370pt_PT
oaire.citation.titleWater Researchpt_PT
oaire.citation.volume186pt_PT
person.familyNameCunha
person.familyNameFaria
person.familyNameKaufmann
person.familyNamecordeiro
person.givenNameCésar
person.givenNameMarisa Camacho Gonçalves
person.givenNameManfred
person.givenNamenereida
person.identifier1612636
person.identifier.ciencia-idEC12-B90B-BA98
person.identifier.ciencia-idD716-6F48-AD0E
person.identifier.ciencia-idA316-A34A-F7AF
person.identifier.ciencia-id521A-0F62-EA39
person.identifier.orcid0000-0003-3811-2932
person.identifier.orcid0000-0002-9158-6961
person.identifier.orcid0000-0001-6213-3229
person.identifier.orcid0000-0001-6006-3415
person.identifier.ridA-7561-2013
person.identifier.ridO-2253-2019
person.identifier.scopus-author-id35264346100
person.identifier.scopus-author-id7004319456
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication78f9a06c-3911-42c4-9899-45aafac82c73
relation.isAuthorOfPublication57ef72f0-8e40-4853-b4ab-416884e127fa
relation.isAuthorOfPublication041c8f9b-d342-4678-938d-9c95a4fd19de
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relation.isAuthorOfPublication.latestForDiscovery57ef72f0-8e40-4853-b4ab-416884e127fa

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