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Electronic Journal of Biotechnology
Universidad Católica de Valparaíso
ISSN: 0717-3458
Vol. 5, No. 3, 2002, pp. 251-257
Bioline Code: ej02039
Full paper language: English
Document type: Short Communication
Document available free of charge

Electronic Journal of Biotechnology, Vol. 5, No. 3, 2002, pp. 251-257

 en Spirulina platensis check for this species in other resources growth estimation by pH determination at different cultivations conditions
Pelizer, Lúcia Helena; Carvalho, J. C. M.; Sato, Sunao & Moraes, Iracema de Oliveira

Abstract

Spirulina platensis check for this species in other resources is a cyanobacterium that has a high protein content and therefore, a high nutritional value. It can be cultivated either in a liquid or in a solid culture. When cultivated in aqueous culture the cell growth can be determined by following the optical density. On the other hand, when produced by solid cultivation the growth can be determined only indirectly, such as, through determination of the protein content of the fermenting solids. In this work the possibility of estimating cell growth by pH determination was verified. From the results it was concluded that pH and protein production (solid or surface culture) or cell content (liquid culture) correlate well, therefore pH determination seems to be a good method to determine cell growth.

Keywords
biomass estimation, methodology, pH, protein content, Spirulina platensis check for this species in other resources

 
© 2002 by Universidad Católica de Valparaíso -- Chile
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