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HUDEČKOVÁ, H. NEUREITER, M. OBRUČA, S. FRÜHAUF, S. MÁROVÁ, I.
Originální název
Biotechnological conversion of spent coffee grounds into lactic acid
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
This work investigates the potential bioconversion of spent coffee grounds (SCG) into lactic acid (LA). SCG were hydrolysed by a combination of dilute acid treatment and subsequent application of cellulase. The SCG hydrolysate contained a considerable amount of reducing sugars (902003gl(-1), glucose; 2649 +/- 010gl(-1) galactose and 281 +/- 007gl(-1) arabinose) and it was used as a substrate for culturing several lactic acid bacteria (LAB) and LA-producing Bacillus coagulans. Among the screened micro-organisms, Lactobacillus rhamnosus CCM 1825 was identified as the most promising producer of LA on a SCG hydrolysate. Despite the inhibitory effect exerted by furfural and phenolic compounds in the medium, reasonably high LA concentrations (2569 +/- 145gl(-1)) and yields (98%) were gained. Therefore, it could be demonstrated that SCG is a promising raw material for the production of LA and could serve as a feedstock for the sustainable large-scale production of LA. Significance and Impact of the StudySpent coffee grounds (SCG) represent solid waste generated in millions of tonnes by coffee-processing industries. Their disposal represents a serious environmental problem; however, SCG could be valorized within a biorefinery concept yielding various valuable products. Herein, we suggest that SCG can be used as a complex carbon source for the lactic acid production.
Klíčová slova
Lactic acid bacteria, fermentation, Lactobacillus, waste, biotechnology, spent coffee grounds, lactic acid
Autoři
HUDEČKOVÁ, H.; NEUREITER, M.; OBRUČA, S.; FRÜHAUF, S.; MÁROVÁ, I.
Vydáno
13. 1. 2018
ISSN
0266-8254
Periodikum
LETTERS IN APPLIED MICROBIOLOGY
Ročník
66
Číslo
4
Stát
Spojené království Velké Británie a Severního Irska
Strany od
306
Strany do
312
Strany počet
7
URL
https://onlinelibrary.wiley.com/doi/epdf/10.1111/lam.12849
BibTex
@article{BUT144640, author="HUDEČKOVÁ, H. and NEUREITER, M. and OBRUČA, S. and FRÜHAUF, S. and MÁROVÁ, I.", title="Biotechnological conversion of spent coffee grounds into lactic acid", journal="LETTERS IN APPLIED MICROBIOLOGY", year="2018", volume="66", number="4", pages="306--312", doi="10.1111/lam.12849", issn="0266-8254", url="https://onlinelibrary.wiley.com/doi/epdf/10.1111/lam.12849" }