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KUČERA, D. BENEŠOVÁ, P. LADICKÝ, P. PEKAŘ, M. SEDLÁČEK, P. OBRUČA, S.
Originální název
Production of Polyhydroxyalkanoates Using Hydrolyzates of Spruce Sawdust: Comparison of Hydrolyzates Detoxification by Application of Overliming, Active Carbon, and Lignite
Typ
článek v časopise ve Scopus, Jsc
Jazyk
angličtina
Originální abstrakt
Polyhydroxyalkanoates (PHAs) are bacterial polyesters which are considered biodegradable alternatives to petrochemical plastics. PHAs have a wide range of potential applications, however, the production cost of this bioplastic is several times higher. A major percentage of the final cost is represented by the price of the carbon source used in the fermentation. Burkholderia cepacia and Burkholderia sacchari are generally considered promising candidates for PHA production from lignocellulosic hydrolyzates. The wood waste biomass has been subjected to hydrolysis. The resulting hydrolyzate contained a sufficient amount of fermentable sugars. Growth experiments indicated a strong inhibition by the wood hydrolyzate. Over-liming and activated carbon as an adsorbent of inhibitors were employed for detoxification. All methods of detoxification had a positive influence on the growth of biomass and PHB production. Furthermore, lignite was identified as a promising alternative sorbent which can be used for detoxification of lignocellulose hydrolyzates. Detoxification using lignite instead of activated carbon had lower inhibitor removal efficiency, but greater positive impact on growth of the bacterial culture and overall PHA productivity. Moreover, lignite is a significantly less expensive adsorbent in comparison with activated charcoal and; moreover, used lignite can be simply utilized as a fuel to, at least partially, cover heat and energetic demands of fermentation, which should improve the economic feasibility of the process.
Klíčová slova
polyhydroxyalkanoates; detoxification; lignite; Burkholderia
Autoři
KUČERA, D.; BENEŠOVÁ, P.; LADICKÝ, P.; PEKAŘ, M.; SEDLÁČEK, P.; OBRUČA, S.
Vydáno
28. 5. 2017
Nakladatel
MDPI AG
Místo
Basel, Switzerland
ISSN
2306-5354
Periodikum
Bioengineering
Ročník
4
Číslo
2
Stát
Švýcarská konfederace
Strany od
1
Strany do
9
Strany počet
URL
http://www.mdpi.com/2306-5354/4/2/53
Plný text v Digitální knihovně
http://hdl.handle.net/11012/84118
BibTex
@article{BUT137652, author="Dan {Kučera} and Pavla {Benešová} and Peter {Ladický} and Miloslav {Pekař} and Petr {Sedláček} and Stanislav {Obruča}", title="Production of Polyhydroxyalkanoates Using Hydrolyzates of Spruce Sawdust: Comparison of Hydrolyzates Detoxification by Application of Overliming, Active Carbon, and Lignite", journal="Bioengineering", year="2017", volume="4", number="2", pages="1--9", doi="10.3390/bioengineering4020053", issn="2306-5354", url="http://www.mdpi.com/2306-5354/4/2/53" }