Detail publikace

Biotechnological conversion of spent coffee grounds into polyhydroxyalkanoates and carotenoids

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

Originální název

Biotechnological conversion of spent coffee grounds into polyhydroxyalkanoates and carotenoids

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Coffee is one of the world's most popular beverages and has been growing steadily in commercial importance. Nowadays, coffee is the second largest traded commodity in the world, after petroleum. Hence, coffee industry is responsible for the generation of large amounts of waste, especially spent coffee grounds (SCG). Various attempts to valorize this waste stream of coffee industry were made. This article summarizes our research and publications aiming at the conversion of SCG into valuable products polyhydroxyalkanoates (PHAs) and carotenoids. At first, oil extracted from SCG (approx. 15 wt% oil in SCG) can be efficiently (Y-P/S = 0.82 g/g) converted into PHA employing Cupriavidus necator H16. Further, the solid residues after oil extraction can be hydrolyzed (by the combination of chemical and enzymatic hydrolysis) yielding fermentable sugars, which can be further used as a substrate for the production of PHAs employing Bacillus megaterium (Y-P/S = 0.04 g/g) or Burkholderia cepacia (Y-P/S = 0.24 g/g). Alternatively, SCG hydrolysate can be used as a substrate for biotechnological production of carotenoids by carotenogenic yeast Sporobolomyces roseus. Solid residues after either oil extraction or hydrolysis can be used as fuel in industrial boilers to generate heat and energy. Therefore, entire biomass of SCG can be used for sustainable production of PHAs and/or carotenoids employing bio-refinery approach.

Klíčová slova

Spent coffee grounds, polyhydroxyalkanoates, carotenoids, biorefinery

Autoři

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

Rok RIV

2015

Vydáno

1. 9. 2015

Nakladatel

Elsevier

ISSN

1871-6784

Periodikum

New Biotechnology

Ročník

32

Číslo

6

Stát

Nizozemsko

Strany od

569

Strany do

574

Strany počet

5

URL

http://www.sciencedirect.com.ezproxy.lib.vutbr.cz/science/article/pii/S1871678415000333

BibTex

@article{BUT116469,
  author="Stanislav {Obruča} and Pavla {Benešová} and Dan {Kučera} and Siniša {Petrik} and Ivana {Márová}",
  title="Biotechnological conversion of spent coffee grounds into polyhydroxyalkanoates and carotenoids",
  journal="New Biotechnology",
  year="2015",
  volume="32",
  number="6",
  pages="569--574",
  doi="10.1016/j.nbt.2015.02.008",
  issn="1871-6784",
  url="http://www.sciencedirect.com.ezproxy.lib.vutbr.cz/science/article/pii/S1871678415000333"
}