Biotechnological conversion of spent coffee grounds into polyhydroxyalkanoates and carotenoids

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F15%3APU115372" target="_blank" >RIV/00216305:26310/15:PU115372 - isvavai.cz</a>

Result on the web

<a href="http://www.sciencedirect.com.ezproxy.lib.vutbr.cz/science/article/pii/S1871678415000333" target="_blank" >http://www.sciencedirect.com.ezproxy.lib.vutbr.cz/science/article/pii/S1871678415000333</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nbt.2015.02.008" target="_blank" >10.1016/j.nbt.2015.02.008</a>

Result language

angličtina

Original language name

Biotechnological conversion of spent coffee grounds into polyhydroxyalkanoates and carotenoids

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20801 - Environmental biotechnology

Project

<a href="/en/project/LO1211" target="_blank" >LO1211: Materials Research Centre at FCH BUT- Sustainability and Development</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

New Biotechnology

ISSN

1871-6784

e-ISSN

1876-4347

Volume of the periodical

32

Issue of the periodical within the volume

6

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

5

Pages from-to

569-574

UT code for WoS article

000360920400006

EID of the result in the Scopus database

2-s2.0-84940964165