Utilization of spent coffee grounds by Lactobacillus plantarum

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F18%3APU127985" target="_blank" >RIV/00216305:26310/18:PU127985 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Utilization of spent coffee grounds by Lactobacillus plantarum

Popis výsledku v původním jazyce

Spent coffee grounds (SCG) represent solid waste generated by coffee processing industries. Their disposal represents a serious environmental problem; however, SCG can be valorised within a biorefinery concept yielding various valuable products. This work investigates the potential conversion of SCG into lactic acid (LA). SCG were hydrolysed by combination of dilute acid treatment and subsequent application of cellulase. The SCG hydrolysate contained a considerable amount of reducing sugars (9.02 ± 0.03 g/l glucose; 26.49 ± 0.10 g/l galactose + mannose and 2.81 ± 0.07 g/l arabinose) and it was used as a substrate for cultivation of Lactobacillus plantarum CCM 7039T. Despite the inhibitory effect exerted by furfural and phenolic compounds in the medium, reasonably high lactic acid concentrations (33.53 ± 0.73 g/l) and yields (98 %) were gained. Therefore, it could be demonstrated that SCG is a promising raw material for the production of lactic acid and could serve as a feedstock for the sustainable large-scale production of lactic acid.

Název v anglickém jazyce

Utilization of spent coffee grounds by Lactobacillus plantarum

Popis výsledku anglicky

Spent coffee grounds (SCG) represent solid waste generated by coffee processing industries. Their disposal represents a serious environmental problem; however, SCG can be valorised within a biorefinery concept yielding various valuable products. This work investigates the potential conversion of SCG into lactic acid (LA). SCG were hydrolysed by combination of dilute acid treatment and subsequent application of cellulase. The SCG hydrolysate contained a considerable amount of reducing sugars (9.02 ± 0.03 g/l glucose; 26.49 ± 0.10 g/l galactose + mannose and 2.81 ± 0.07 g/l arabinose) and it was used as a substrate for cultivation of Lactobacillus plantarum CCM 7039T. Despite the inhibitory effect exerted by furfural and phenolic compounds in the medium, reasonably high lactic acid concentrations (33.53 ± 0.73 g/l) and yields (98 %) were gained. Therefore, it could be demonstrated that SCG is a promising raw material for the production of lactic acid and could serve as a feedstock for the sustainable large-scale production of lactic acid.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10700 - Other natural sciences

Projekt

<a href="/cs/project/LO1211" target="_blank" >LO1211: Centrum materiálového výzkumu na FCH VUT v Brně - udržitelnost a rozvoj</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

ŠTUDENTSKÁ VEDECKÁ KONFERENCIA PriF UK 2018 - Zborník recenzovaných príspevkov

ISBN

978-80-223-4517-0

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

237-241

Název nakladatele

Neuveden

Místo vydání

Neuveden

Místo konání akce

Bratislava

Datum konání akce

25. 4. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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