Detail publikace

Production of Polyhydroxyalkanoates Using Hydrolyzates of Spruce Sawdust: Comparison of Hydrolyzates Detoxification by Application of Overliming, Active Carbon, and Lignite

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

9

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"
}