1992
DOI: 10.1002/bit.260400710
|View full text |Cite
|
Sign up to set email alerts
|

A structured model for simulation of cultures of the cyanobacterium Spirulina platensis in photobioreactors: II. Identification of kinetic parameters under light and mineral limitations

Abstract: A structured model for the culture of cyanobacteria in photobioreactors is developed on the basis of Schuster's approximations for radiative light transfer. This model is therefore limited to monodimensional geometries and kinetic aspects.Light-harvesting pigments play a crucial role in defining the profile of radiative transfer inside the culture medium and in controlling the metabolism, particularly the metabolic deviations induced by mineral limitations. Modeling therefore requires the biomass to be divided… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
2
1

Citation Types

5
84
2
17

Year Published

1994
1994
2012
2012

Publication Types

Select...
6
2

Relationship

1
7

Authors

Journals

citations
Cited by 139 publications
(108 citation statements)
references
References 9 publications
5
84
2
17
Order By: Relevance
“…In fact, the N/P ratio in the nutrients solution added during the cultivation (2.99) was by far lower than that of dry A. platensis biomass (12.8), which can estimated from the elemental composition reported for this microorganism by Cornet et al [36] (CH 1.650 O 0.531 N 0.170 S 0.007 P 0.006 ). Finally these results suggest that, under bioenergetic stress conditions, i.e.…”
Section: Effect Of Nitrogen Feedingmentioning
confidence: 77%
See 1 more Smart Citation
“…In fact, the N/P ratio in the nutrients solution added during the cultivation (2.99) was by far lower than that of dry A. platensis biomass (12.8), which can estimated from the elemental composition reported for this microorganism by Cornet et al [36] (CH 1.650 O 0.531 N 0.170 S 0.007 P 0.006 ). Finally these results suggest that, under bioenergetic stress conditions, i.e.…”
Section: Effect Of Nitrogen Feedingmentioning
confidence: 77%
“…The total carbonate concentration (about 9.0 g L À1 ) kept almost constant during all the runs, thus suggesting that the CO 2 addition was able to replace the consumed carbon source, avoiding, at the same time, any accumulation in the medium. Taking as an example the run 1 (Table 1), whose P X value was 0.444 g L À1 d À1 and considering that the dry cell weight is constituted by about 50% of carbon [36], we can estimate a carbon dioxide necessity of 2.849 g/day for the 3.5 L of culture. Taking into account that cells achieved their maximum concentration within 9 days, the total amount of CO 2 required for their growth was about 26 g, which accounts for approximately 84% of the total carbon dioxide present in the initial Schlösser medium (30.8 g), either in the form of bicarbonate or carbonate.…”
Section: Effect Of Co 2 Feedingmentioning
confidence: 99%
“…platensis, e os melhores resultados são atribuídos aos nitratos em termos de biomassa produzida (FAINTUCH, 1989;CORNET et al, 1998), o que confirma a ampla utilização dos meios de Paoletti (PAOLETTI et al, 1975) e Zarrouk (ZARROUK, 1966), que utilizam KNO 3 e NaNO 3 como fonte de nitrogênio, respectivamente.…”
Section: Fontes De Nitrogêniounclassified
“…Ficocianinas são cromoproteínas que constituem o principal pigmento na captação de luz em cianobactérias e representa 1/2 das proteínas celulares. Na falta de nitrogênio e enxofre, essas cromoproteínas são consumidas reduzindo a eficiência fotossintética (CORNET et al, 1992).…”
Section: Importânciaunclassified
“…Com a adição da fonte de nitrogênio em cultivos deficientes em nitrogênio, ocorre um rápido aumento na quantidade de proteínas, tais como ficocianinas e, com menos intensidade, outras proteínas celulares são produzidas (CORNET et al, 1998 O pH também influencia na disponibilidade de nitrogênio para a célula, visto que com pH abaixo de 8,0 há uma predominância de íon amônio. Em pH acima de 11,0, o nitrogênio encontra-se na forma não protonada de amônia que é a forma que tem passagem livre pela membrana celular (BOUSSIBA, 1989;BELKIN & BOUSSIBA, 1991 (MORIST et al, 2001).…”
Section: Importânciaunclassified