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J. Microbiol. Biotechnol. 2007; 17(3): 393-397

Published online March 28, 2007

Copyright © The Korean Society for Microbiology and Biotechnology.

Agricultural Fertilizers as Economical Alternative for Cultivation of Haematococcus pluvialis

Dalay, Meltem Conk *, Esra Imamoglu * and Zeliha Demirel *

Ege University, Faculty of Engineering, Department of Bioengineering, Izmir, 35100, Turkey

Abstract

A Haematococcus pluvialis strain isolated from the ruins of Ephesus in Turkey was investigated as regards its adaptation to laboratory conditions and maximum growth rate. In the first stage of the experiment, the growth of H. pluvialis was compared in common culture media. Furthermore, in an effort to minimize the culture costs, the second stage of the experiment compared the growth rate in the culture medium selected in the first stage with that in commercial plant fertilizers. The results demonstrated that the maximum cell concentration of 0.90 g/l, corresponding to a growth rate of $0.150d^{-1}$, was found with an N-P-K 20:20:20 fertilizer under a light intensity of $75{\mu}mol$ photons $m^{-2}s{-1}$ on the $12^{th}$ day of cultivation.

Keywords: Commercial fertilizer, culture medium, Haematococcus pluvialis, isolation, growth