Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/47747
Título: | Production of added value bacterial lipids through valorisation of hydrocarbon-contaminated cork waste |
Autor(es): | Castro, A. R. Guimarães, Maura Francisca Silva Oliveira, João Vítor Pereira, M. Alcina |
Palavras-chave: | Rhodococcus opacus B4 Neutral lipids Cork sorbents Hydrocarbons Biomethane Valorisation |
Data: | 2017 |
Editora: | Elsevier 1 |
Revista: | Science of the Total Environment |
Citação: | Castro, 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 |
Resumo(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. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/47747 |
DOI: | 10.1016/j.scitotenv.2017.06.216 |
ISSN: | 0048-9697 |
Versão da editora: | https://www.journals.elsevier.com/science-of-the-total-environment/ |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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document_46832_1.pdf | 553,83 kB | Adobe PDF | Ver/Abrir |