Detail publikace

Biotechnological conversion of spent coffee grounds into lactic acid

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"
}