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http://hdl.handle.net/10773/19425
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DC Field | Value | Language |
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dc.contributor.author | Queiros, Diogo | pt |
dc.contributor.author | Fonseca, Alexandre | pt |
dc.contributor.author | Lemos, Paulo C. | pt |
dc.contributor.author | Serafim, Luisa S. | pt |
dc.date.accessioned | 2017-12-07T19:12:21Z | - |
dc.date.issued | 2016 | pt |
dc.identifier.issn | 0268-2575 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/19425 | - |
dc.description.abstract | BACKGROUNDThe development of sustainable industrial processes demands the recovery and transformation of their by-products. The production of polyhydroxyalkanoates (PHAs) by mixed microbial cultures (MMC) is one of the available routes. This study evaluated the possibility of applying a two-step PHAs production process using an industrial by-product, hardwood sulphite spent liquor (HSSL), as feedstock for a MMC. The first step consisted in the selection of PHAs-storing microorganisms using an aerobic dynamic feeding strategy followed by a second step, accumulation. RESULTSThe selected MMC, despite not being able to use the main carbon source of HSSL, lignosulphonates, revealed the capacity to consume acetate and xylose to accumulate poly(3-hydroxybutyrate-co-3-hydroxyvalerate) and glucose biopolymer. The maximum PHAs content was relatively low, 6.6%, with a maximum production yield of 0.49 C-mmol HA C-mmol S-1 during the selection stage. CONCLUSIONA MMC was able to adapt to HSSL by consuming acetate and xylose. The imposed operational conditions resulted in a partial selection of the culture, since only acetate-consuming organisms experienced a real feast/famine regime, resulting in low PHAs production. (c) 2015 Society of Chemical Industry | pt |
dc.language.iso | eng | pt |
dc.publisher | WILEY-BLACKWELL | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/5876/147332/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/5876/147218/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F87758%2F2012/PT | pt |
dc.rights | restrictedAccess | por |
dc.subject | MIXED MICROBIAL CULTURES | pt |
dc.subject | SEQUENCING BATCH REACTOR | pt |
dc.subject | MILL WASTE-WATER | pt |
dc.subject | ACTIVATED-SLUDGE | pt |
dc.subject | PHA PRODUCTION | pt |
dc.subject | BIODEGRADABLE POLYMERS | pt |
dc.subject | STRATEGIES | pt |
dc.subject | BIOSYNTHESIS | pt |
dc.subject | FEEDSTOCK | pt |
dc.subject | MOLASSES | pt |
dc.title | Long-term operation of a two-stage polyhydroxyalkanoates production process from hardwood sulphite spent liquor | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 2480 | pt |
degois.publication.issue | 9 | pt |
degois.publication.lastPage | 2487 | pt |
degois.publication.title | JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY | pt |
degois.publication.volume | 91 | pt |
dc.date.embargo | 10000-01-01 | - |
dc.relation.publisherversion | 10.1002/jctb.4841 | pt |
dc.identifier.doi | 10.1002/jctb.4841 | pt |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Long-term operation of a two-stage polyhydroxyalkanoates production process from hardwood sulphite spent liquor_10.1002jctb.4841.pdf | 508.76 kB | Adobe PDF |
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