Heterotrophic cultivation of Chlorella vulgaris using saline waste water from the demineralization of cheese whey

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722861%3A_____%2F20%3AN0000004" target="_blank" >RIV/26722861:_____/20:N0000004 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22330/20:43920788

Výsledek na webu

<a href="https://link.springer.com/article/10.1007%2Fs10529-019-02770-7" target="_blank" >https://link.springer.com/article/10.1007%2Fs10529-019-02770-7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10529-019-02770-7" target="_blank" >10.1007/s10529-019-02770-7</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Heterotrophic cultivation of Chlorella vulgaris using saline waste water from the demineralization of cheese whey

Popis výsledku v původním jazyce

Objective Desalination of cheese whey by electrodialysis yields saline wastewater (SWW). The goal was to test this as the basis of a culture medium and to prove experimentally the concept that it was a suitable resource for heterotrophic cultivation of the freshwater green microalga Chlorella vulgaris. Results Optimization of glucose concentration, nitrogen source and medium salinity for microalgal growth was first carried out in defined medium (DM) and shake flasks. These results were then adopted in shake flask cultivation experiments using pre-treated SWW medium (PSWW). Subsequently, microalgal growth under optimized conditions was tested in bioreactors. Various media such as DM, PSWW and diluted PSWW (DPSWW) were compared. Volumetric biomass productivities decreased in the order DM (0.371 g L-1 h-1, urea)[DPSWW(0.315 g L-1 h-1, soy peptone)[PSWW (0.152 g L-1 h-1, soy peptone). Although biomass productivities in DPSWW and PSWW media were significantly lower than in DM, these media required the addition of only 66 and 33% of DM N sources, respectively. No other added DM component was necessary in (D)PSWW to achieve microalgal growth. Conclusions Although the optimized cultivation of freshwater microalgae on alternative medium based onSWW resulted in biomass productivities lower than those on DM, the required addition of N sources was also lower. Potentially lower production costs of Chlorella biomass and the meaningful use of SWW are the main outcomes of this work.

Název v anglickém jazyce

Heterotrophic cultivation of Chlorella vulgaris using saline waste water from the demineralization of cheese whey

Popis výsledku anglicky

Objective Desalination of cheese whey by electrodialysis yields saline wastewater (SWW). The goal was to test this as the basis of a culture medium and to prove experimentally the concept that it was a suitable resource for heterotrophic cultivation of the freshwater green microalga Chlorella vulgaris. Results Optimization of glucose concentration, nitrogen source and medium salinity for microalgal growth was first carried out in defined medium (DM) and shake flasks. These results were then adopted in shake flask cultivation experiments using pre-treated SWW medium (PSWW). Subsequently, microalgal growth under optimized conditions was tested in bioreactors. Various media such as DM, PSWW and diluted PSWW (DPSWW) were compared. Volumetric biomass productivities decreased in the order DM (0.371 g L-1 h-1, urea)[DPSWW(0.315 g L-1 h-1, soy peptone)[PSWW (0.152 g L-1 h-1, soy peptone). Although biomass productivities in DPSWW and PSWW media were significantly lower than in DM, these media required the addition of only 66 and 33% of DM N sources, respectively. No other added DM component was necessary in (D)PSWW to achieve microalgal growth. Conclusions Although the optimized cultivation of freshwater microalgae on alternative medium based onSWW resulted in biomass productivities lower than those on DM, the required addition of N sources was also lower. Potentially lower production costs of Chlorella biomass and the meaningful use of SWW are the main outcomes of this work.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40401 - Agricultural biotechnology and food biotechnology

Projekt

<a href="/cs/project/QK1910300" target="_blank" >QK1910300: Využití odpadů z mlékáren pro produkci nových mléčných výrobků a doplňků stravy s přídavkem mikrořas nebo jejich komponent</a><br>

Návaznosti

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

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Biotechnology Letters

ISSN

0141-5492

e-ISSN

1573-6776

Svazek periodika

42

Číslo periodika v rámci svazku

únor 2020

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

209–217

Kód UT WoS článku

000511979100004

EID výsledku v databázi Scopus

2-s2.0-85076226869