| Autor: |
Castro, A.R.1, Guimarães, M.1, Oliveira, J.V.1, Pereira, M.A.1 alcina@deb.uminho.pt |
| Předmět: |
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| Zdroj: |
Science of the Total Environment. Dec2017, Vol. 605/606, p677-682. 6p. |
| Abstrakt: |
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 CH 4 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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
GreenFILE |
| Externí odkaz: |
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Full Text from ScienceDirect