Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/47747

TitleProduction of added value bacterial lipids through valorisation of hydrocarbon-contaminated cork waste
Author(s)Castro, Rita
Guimarães, Maura
Oliveira, João Vítor
Pereira, M. Alcina
KeywordsRhodococcus opacus B4
Neutral lipids
Cork sorbents
Hydrocarbons
Biomethane
Valorisation
Issue date2017
PublisherElsevier
JournalScience of the Total Environment
CitationCastro, Rita; Guimarães, Maura; Oliveira, João V.; Pereira, M. Alcina, Production of added value bacterial lipids through valorisation of hydrocarbon-contaminated cork waste. Science of the Total Environment, 605-606, 677-682, 2017
Abstract(s)This work demonstrates that cork used as oil-spill sorbents, contaminated with liquid hydrocarbons, herein demonstrated with hexadecane, can be biologically treated by Rhodococcus opacus B4 with concomitant lipids production. R. opacus B4 consumed up to 96% of hexadecane (C16) impregnated in natural and regranulated cork sorbents after 48 h incubation, producing 0.59 ± 0.06 g of triacylglycerol (TAG) g 1 of C16 consumed with a TAG content of 0.60 ± 0.06 g g 1 of cellular dry weight (CDW) and 0.54 ± 0.05 g TAG g 1 of C16 consumed with a TAG content of 0.77 ± 0.04 g g 1 (CDW), respectively. TAG was mainly composed by fatty acids of 16 and 18 carbon chains demonstrating the feasibility of using it as raw material for biodiesel production. In addition, the obtained lipid-rich biomass (whole cells) can be used for biomethane production, at a yield of 0.4 L CH4 g 1 (CDW). The obtained results support a novel approach for management of oil-spill contaminated cork sorbents through its valorisation by producing bacterial lipids, which can be used as feedstocks for biofuels production.
TypeArticle
URIhttp://hdl.handle.net/1822/47747
DOI10.1016/j.scitotenv.2017.06.216
ISSN0048-9697
Publisher versionhttps://www.journals.elsevier.com/science-of-the-total-environment/
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

Files in This Item:
File Description SizeFormat 
document_46832_1.pdf553,83 kBAdobe PDFView/Open

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID