Contribution
High Spirulina productivity under intensive light
Brantes Mendes, Leonardo Bacellar; Wagener, Klaus
Algological Studies/Archiv für Hydrobiologie, Supplement Volumes No. 103 (2001), p. 151 - 160
13 références bibliographiques
publié: Dec 3, 2001
DOI: 10.1127/algol_stud/103/2001/151
ArtNo. ESP142014000019, Prix: 29.00 €
Abstract
Spirulina platensis cultures were illuminated in a glass tube with light intensities of up to 394 klx (9.8 W of visible light per g of algae) using sun light concentrated by means of reflectors. No bleaching or photoinhibition was observed, but an increase in productivity of up to 270%, compared to parallel cultures under normal solar irradiance. The changes in algal composition under such intensive light are (the values depend on the light intensity): decrease in protein (by up to 40% and of phycocyanin (down to 18% of reference culture), increase in carbohydrates (up to more than 100%), chlorophyll (up to 167% of reference culture) and DNA (up to 40% above reference culture). Possible applications of these techniques are discussed.
Mots-clefs
Spirulina • extremely high irradiance • high productivity • photoinhibition