Publication detail

Chicken feather hydrolysate as an inexpensive complex nitrogen source for PHA production by Cupriavidus necator on waste frying oils

BENEŠOVÁ, P. KUČERA, D. MÁROVÁ, I. OBRUČA, S.

Original Title

Type

journal article in Web of Science

Language

English

Original Abstract

The chicken feather hydrolysate (FH) has been tested as a potential complex nitrogen source for the production of polyhydroxyalkanoates by Cupriavidus necator H16 when waste frying oil was used as a carbon source. The addition of FH into the mineral salt media with decreased inorganic nitrogen source concentration improved the yields of biomass and polyhydrohyalkanoates. The highest yields were achieved when 10 vol.% of FH prepared by microwave-assisted alkaline hydrolysis of 60 g l(-1) feather was added. In this case, the poly(3hydroxybutyrate) (PHB) yields were improved by more than about 50% as compared with control cultivation. A positive impact of FH was also observed for accumulation of copolymer poly(3-hydroxybutyrate-co-3-hydroxyvalerate) when sodium propionate was used as a precursor. The copolymer has superior processing and mechanical properties in comparison with PHB homopolymer. The application of FH eliminated the inhibitory effect of propionate and resulted in altered content of 3-hydroxyvalerate (3HV) in copolymer. Therefore, the hydrolysed feather can serve as an excellent complex source of nitrogen for the polyhydroxyalkanoates (PHA) production. Moreover, by the combination of two inexpensive types of waste, such as waste frying oil and feather hydrolysate, it is possible to produce PHA with substantially improved efficiency and sustainability.

Keywords

PHA; chicken feather; hydrolysis; complex nitrogen source

Authors

BENEŠOVÁ, P.; KUČERA, D.; MÁROVÁ, I.; OBRUČA, S.

Released

1. 8. 2017

Publisher

Blackwell Publishing Ltd

ISBN

0266-8254

Periodical

LETTERS IN APPLIED MICROBIOLOGY

Year of study

Number

State

United Kingdom of Great Britain and Northern Ireland

Pages from

182

Pages to

188

Pages count

URL

http://onlinelibrary.wiley.com.ezproxy.lib.vutbr.cz/doi/10.1111/lam.12762/full

BibTex

@article{BUT138096,
  author="Pavla {Benešová} and Dan {Kučera} and Ivana {Márová} and Stanislav {Obruča}",
  title="Chicken feather hydrolysate as an inexpensive complex nitrogen source for PHA production by Cupriavidus necator on waste frying oils",
  journal="LETTERS IN APPLIED MICROBIOLOGY",
  year="2017",
  volume="65",
  number="2",
  pages="182--188",
  doi="10.1111/lam.12762",
  issn="0266-8254",
  url="http://onlinelibrary.wiley.com.ezproxy.lib.vutbr.cz/doi/10.1111/lam.12762/full"
}