Detail publikačního výsledku

WHY POLYPHENOLS PRESENT IN SPENT COFFEE GROUNDS INHIBIT THE GROWTH OF BACTERIA PRODUCING POLYHYDROXYALKANOATES?

KOVALČÍK, A.; MATOUŠKOVÁ, P.; KUČERA, D.; OBRUČA, S.; MÁROVÁ, I.

Originální název

WHY POLYPHENOLS PRESENT IN SPENT COFFEE GROUNDS INHIBIT THE GROWTH OF BACTERIA PRODUCING POLYHYDROXYALKANOATES?

Anglický název

WHY POLYPHENOLS PRESENT IN SPENT COFFEE GROUNDS INHIBIT THE GROWTH OF BACTERIA PRODUCING POLYHYDROXYALKANOATES?

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

Our study aims at suggesting detoxification methodology, which would enable to extract phenolic compounds from spent coffee grounds (SCGs) hydrolysates to produce inhibitor-free hydrolysates. SCGs arise as a waste product through the production of instant coffee and coffee brewing. SCGs contain an oil fraction and a lignocellulosic fraction, which can be used as a carbon substrate for bacteria producing polyhydroxyalkanoates (PHA). Fermentable sugars are transformed from SCGs via chemical hydrolysis. However, SCG hydrolysates contain also phenolic compounds, which are too toxic for PHA producing bacteria and partially even completely inhibit their growth. Our results showed that the multi-stepped extractions' methodology enabled to extract phenolic compounds and produce inhibitor-free SCG hydrolysates from which may profit PHA producing bacteria. Moreover, extracted phenolics reveal high antimicrobial activity, and therefore, they can be used in numerous high-value applications.

Anglický abstrakt

Our study aims at suggesting detoxification methodology, which would enable to extract phenolic compounds from spent coffee grounds (SCGs) hydrolysates to produce inhibitor-free hydrolysates. SCGs arise as a waste product through the production of instant coffee and coffee brewing. SCGs contain an oil fraction and a lignocellulosic fraction, which can be used as a carbon substrate for bacteria producing polyhydroxyalkanoates (PHA). Fermentable sugars are transformed from SCGs via chemical hydrolysis. However, SCG hydrolysates contain also phenolic compounds, which are too toxic for PHA producing bacteria and partially even completely inhibit their growth. Our results showed that the multi-stepped extractions' methodology enabled to extract phenolic compounds and produce inhibitor-free SCG hydrolysates from which may profit PHA producing bacteria. Moreover, extracted phenolics reveal high antimicrobial activity, and therefore, they can be used in numerous high-value applications.

Klíčová slova

Bacteria; biopolymers; hydrolysis; inhibitors

Klíčová slova v angličtině

Bacteria; biopolymers; hydrolysis; inhibitors

Autoři

KOVALČÍK, A.; MATOUŠKOVÁ, P.; KUČERA, D.; OBRUČA, S.; MÁROVÁ, I.

Rok RIV

2019

Vydáno

06.07.2018

Nakladatel

ETA - Florence Renewable Energies

Místo

Florence, Italy

Kniha

Papers of the 26th European Biomass Conference. Setting the course for a biobased economy. Extracted from the Proceedings of the International Conference held in Copenhagen, Denmark, 14 - 17 May 2018

ISSN

2282-5819

Periodikum

EUROPEAN BIOMASS CONFERENCE AND EXHIBITION PROCEEDINGS

Svazek

26th EUBCE

Číslo

2018

Stát

Italská republika

Strany od

960

Strany do

964

Strany počet

5

URL

http://www.etaflorence.it/proceedings/index.asp?conference=2018

BibTex

@inproceedings{BUT149091,
  author="Adriána {Kovalčík} and Petra {Skoumalová} and Dan {Kučera} and Stanislav {Obruča} and Ivana {Márová}",
  title="WHY POLYPHENOLS PRESENT IN SPENT COFFEE GROUNDS INHIBIT THE GROWTH OF BACTERIA PRODUCING POLYHYDROXYALKANOATES?",
  booktitle="Papers of the 26th European Biomass Conference. Setting the course for a biobased economy. Extracted from the Proceedings of the International Conference held in Copenhagen, Denmark, 14 - 17 May 2018",
  year="2018",
  journal="EUROPEAN BIOMASS CONFERENCE AND EXHIBITION PROCEEDINGS",
  volume="26th EUBCE",
  number="2018",
  pages="960--964",
  publisher="ETA - Florence Renewable Energies",
  address="Florence, Italy",
  issn="2282-5819",
  url="http://www.etaflorence.it/proceedings/index.asp?conference=2018"
}

Dokumenty

Paper_4