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Statements

Subject Item
n2:RIV%2F61388971%3A_____%2F13%3A00424551%21RIV14-MSM-61388971
rdf:type
n5:Vysledek skos:Concept
dcterms:description
In this study we compared the biomass productivity and the chemical composition of the diatom Phaeodactylum tricornutum grown outdoors at different biomass concentrations, in open ponds and photobioreactors (PBRs). Optimal biomass concentration of 0.6 gL(-1) and 1.0 g L-1 was found in open ponds and in PBRs, respectively. During summer the mean net areal biomass yield was 11.7 g m(-2) day(-1) and 13.1 g m(-2) day(-1) in open ponds and in PBRs, respectively. Night biomass loss was comparable (17.4% and 21.4% of the daylight productivity, in open ponds, and PBRs, respectively). Lipid content ranged between 25% and 27.5% of dry weight, and increased up to 34.7% of biomass grown in dense cultures (>0.6 g L-1 in ponds; >1.0 g L-1 in PBRs). In the evening they ranged between 21% and 31%, while a reduced amount was found in the morning between 14.5% and 24%. An induction of the diadino diatoxanthin cycle was observed in the cultures when they were grown at lower biomass concentrations, particularly in cultures grown in photobioreactors, indicating down-regulation of the photosynthetic apparatus due to high irradiance, which was confirmed by a sizeable reduction in the F-v/F-m ratio in the middle of day. It was found that the productivity of cultures was higher in photobioreactors compared to that in open ponds most likely as a result of a better light dark regime experienced by the cells in short light-path tubular PBRs, which may have allowed a more efficient use of light In this study we compared the biomass productivity and the chemical composition of the diatom Phaeodactylum tricornutum grown outdoors at different biomass concentrations, in open ponds and photobioreactors (PBRs). Optimal biomass concentration of 0.6 gL(-1) and 1.0 g L-1 was found in open ponds and in PBRs, respectively. During summer the mean net areal biomass yield was 11.7 g m(-2) day(-1) and 13.1 g m(-2) day(-1) in open ponds and in PBRs, respectively. Night biomass loss was comparable (17.4% and 21.4% of the daylight productivity, in open ponds, and PBRs, respectively). Lipid content ranged between 25% and 27.5% of dry weight, and increased up to 34.7% of biomass grown in dense cultures (>0.6 g L-1 in ponds; >1.0 g L-1 in PBRs). In the evening they ranged between 21% and 31%, while a reduced amount was found in the morning between 14.5% and 24%. An induction of the diadino diatoxanthin cycle was observed in the cultures when they were grown at lower biomass concentrations, particularly in cultures grown in photobioreactors, indicating down-regulation of the photosynthetic apparatus due to high irradiance, which was confirmed by a sizeable reduction in the F-v/F-m ratio in the middle of day. It was found that the productivity of cultures was higher in photobioreactors compared to that in open ponds most likely as a result of a better light dark regime experienced by the cells in short light-path tubular PBRs, which may have allowed a more efficient use of light
dcterms:title
Productivity and biochemical composition of Phaeodactylum tricornutum (Bacillariophyceae) cultures grown outdoors in tubular photobioreactors and open ponds Productivity and biochemical composition of Phaeodactylum tricornutum (Bacillariophyceae) cultures grown outdoors in tubular photobioreactors and open ponds
skos:prefLabel
Productivity and biochemical composition of Phaeodactylum tricornutum (Bacillariophyceae) cultures grown outdoors in tubular photobioreactors and open ponds Productivity and biochemical composition of Phaeodactylum tricornutum (Bacillariophyceae) cultures grown outdoors in tubular photobioreactors and open ponds
skos:notation
RIV/61388971:_____/13:00424551!RIV14-MSM-61388971
n5:predkladatel
n16:ico%3A61388971
n3:aktivita
n7:P n7:I n7:V
n3:aktivity
I, P(ED2.1.00/03.0110), V
n3:cisloPeriodika
JUL 2013
n3:dodaniDat
n4:2014
n3:domaciTvurceVysledku
n8:3965899 n8:8725829
n3:druhVysledku
n11:J
n3:duvernostUdaju
n14:S
n3:entitaPredkladatele
n12:predkladatel
n3:idSjednocenehoVysledku
100019
n3:idVysledku
RIV/61388971:_____/13:00424551
n3:jazykVysledku
n19:eng
n3:klicovaSlova
Lipid; Open ponds; Phaeodactylum tricornutum
n3:klicoveSlovo
n10:Lipid n10:Open%20ponds n10:Phaeodactylum%20tricornutum
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[A1AFE428B9A3]
n3:nazevZdroje
Biomass & Bioenergy
n3:obor
n18:EE
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
4
n3:projekt
n6:ED2.1.00%2F03.0110
n3:rokUplatneniVysledku
n4:2013
n3:svazekPeriodika
54
n3:tvurceVysledku
Torzillo, G. Benavides, A. M. S. Kopecký, Jiří Masojídek, Jiří
n3:wos
000321595800013
s:issn
0961-9534
s:numberOfPages
8
n15:doi
10.1016/j.biombioe.2013.03.016