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@MASTERSTHESIS{Groe:909544,
author = {Große, David},
title = {{C}ulture optimization and characterization of three
{P}orphyridium strains for valuable compound production},
school = {FH Aachen},
type = {Bachelorarbeit},
reportid = {FZJ-2022-03233},
pages = {23},
year = {2022},
note = {Bachelorarbeit, FH Aachen, 2022},
abstract = {The optimal conditions to maximize phycoerythrin- (PE) and
exopolysaccharide (EPS)production in the three
photoautotrophic red marine microalgal strains of
Porphyridiumpurpureum (SAG 1380-la $\&$ -ld) and cruentum
(UTEX 161) were researched. Design ofexperiment software
(DoE) was used in planning and evaluation. Dependencies were
foundbetween light intensity, nitrogen and magnesium
concentrations, and the resulting PE andEPS productivities.
The maximal PE productivity (4,96 μg mL-1d-1) was found in
P.purpureum SAG 1380-ld. Contrasting, the highest EPS
productivity (5,75 g L-1 d- 1) wasfound in P. purpureum SAG
1380-la. However, optimization efforts in EPS
productionremained due to low dependencies under tested
growth conditions. The optimal productinducing conditions
for all strains were identified at ~40μmol photon m-2 s-
1and 9-15 mMnitrogen. The optimal magnesium concentration
ranged between 5, 38 and 45 mM for UTEX161, SAG 1380-la and
-ld, respectively. The pilot scale cultivation under
greenhouseconditions could not be finished, because of
temperature stress during the cultivation.},
cin = {IBG-2},
cid = {I:(DE-Juel1)IBG-2-20101118},
pnm = {2171 - Biological and environmental resources for
sustainable use (POF4-217)},
pid = {G:(DE-HGF)POF4-2171},
typ = {PUB:(DE-HGF)2},
url = {https://juser.fz-juelich.de/record/909544},
}