Pilot plant cultivation of microalga Dictyosphaerium chlorelloides with night illumination from LEDs sources

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F24%3A00601227" target="_blank" >RIV/61388971:_____/24:00601227 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985939:_____/24:00601227 RIV/49777513:23420/24:43973065

Výsledek na webu

<a href="https://doi.org/10.1016/j.algal.2024.103759" target="_blank" >https://doi.org/10.1016/j.algal.2024.103759</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.algal.2024.103759" target="_blank" >10.1016/j.algal.2024.103759</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Pilot plant cultivation of microalga Dictyosphaerium chlorelloides with night illumination from LEDs sources

Popis výsledku v původním jazyce

Illumination during the night with white LEDs increased the growth of the microalga Dictyosphaerium chlorelloides strain CCALA 330 on a thin-film platform unit (150 L volume, 12 m2 area) approximately 2.5x in comparison to the platform illuminated only by the Sun. The mean PAR intensity on the Sun-illuminated unit was 71 mu mol m(-2) s(-1), on the Sun + LEDs unit 549 mu mol m(-2) s(-1) , the mean temperatures were 15 degrees C and 20.1 degrees C. On the Sun unit the algae grew to a maximum of 15 g L-1 dry weight in 42 days, with Sun + LEDs into 17.8 g L-1 during 24 days when the both units reached the stationary phase of the growth curve. Biomass production was 3.3 in the Sun and 8.54 g m(-2) d(-1) in the Sun + LED, i.e. 0.27 and 0.68 g L-1 d(-1). In total, the mean of 37.5 and 58.2 kWh per night were consumed, so the total electricity consumptions for biomass production was 0.20 and 0.40 kWh g(-1) DW during LED + Sun cycles 1 and 2, respectively. The production of the extracellular polysaccharides was practically the same for both platforms, and constant during time. A more substantial double increase was only after 30 days of cultivation in both platforms and reached 4 g L-1 . The fluorescence measurements proved good physiological state of the cultures. The PAR was found as a main driver of the photosynthetic activity. The correlation of the growth and fluorescence parameters to the environmental conditions was much more profound in the Sun pilot plant, therefore the reliable set of monitored parameters should be defined according to the cultivation type, for both of them we propose OD 680 /OD 720 ratio as a proxy of nutrient deficiency.

Název v anglickém jazyce

Pilot plant cultivation of microalga Dictyosphaerium chlorelloides with night illumination from LEDs sources

Popis výsledku anglicky

Illumination during the night with white LEDs increased the growth of the microalga Dictyosphaerium chlorelloides strain CCALA 330 on a thin-film platform unit (150 L volume, 12 m2 area) approximately 2.5x in comparison to the platform illuminated only by the Sun. The mean PAR intensity on the Sun-illuminated unit was 71 mu mol m(-2) s(-1), on the Sun + LEDs unit 549 mu mol m(-2) s(-1) , the mean temperatures were 15 degrees C and 20.1 degrees C. On the Sun unit the algae grew to a maximum of 15 g L-1 dry weight in 42 days, with Sun + LEDs into 17.8 g L-1 during 24 days when the both units reached the stationary phase of the growth curve. Biomass production was 3.3 in the Sun and 8.54 g m(-2) d(-1) in the Sun + LED, i.e. 0.27 and 0.68 g L-1 d(-1). In total, the mean of 37.5 and 58.2 kWh per night were consumed, so the total electricity consumptions for biomass production was 0.20 and 0.40 kWh g(-1) DW during LED + Sun cycles 1 and 2, respectively. The production of the extracellular polysaccharides was practically the same for both platforms, and constant during time. A more substantial double increase was only after 30 days of cultivation in both platforms and reached 4 g L-1 . The fluorescence measurements proved good physiological state of the cultures. The PAR was found as a main driver of the photosynthetic activity. The correlation of the growth and fluorescence parameters to the environmental conditions was much more profound in the Sun pilot plant, therefore the reliable set of monitored parameters should be defined according to the cultivation type, for both of them we propose OD 680 /OD 720 ratio as a proxy of nutrient deficiency.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10606 - Microbiology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Algal Research-Biomass Biofuels and Bioproducts

ISSN

2211-9264

e-ISSN

2211-9264

Svazek periodika

84

Číslo periodika v rámci svazku

DEC 2024

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

15

Strana od-do

103759

Kód UT WoS článku

001344791800001

EID výsledku v databázi Scopus

2-s2.0-85207244389