EFFECT OF LIGHT PATH LENGTH AND NITROGEN DEFICIENCY ON THE BIOCHEMICAL COMPOSITION OF Phaeodactylum tricornutum


USLU L., AK B., IŞIK O., DURMAZ Y.

FRESENIUS ENVIRONMENTAL BULLETIN, vol.23, no.6, pp.1309-1313, 2014 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 23 Issue: 6
  • Publication Date: 2014
  • Title of Journal : FRESENIUS ENVIRONMENTAL BULLETIN
  • Page Numbers: pp.1309-1313
  • Keywords: P. tricornutum, Flat Panel PBR system, N deficiency, Lipid, FATTY-ACID-COMPOSITION, LIPID-CONTENT, NUTRIENT LIMITATION, CHLORELLA-VULGARIS, GROWTH, BIOMASS, PHOTOBIOREACTOR, ACCUMULATION, EXTRACTION, MICROALGAE

Abstract

P. tricornutum was cultured in a panel PBR system, with different light path (1, 3, 5, 7 and 10 cm), 50% nitrogen reduction and with 20% inoculation densities. Lipid, protein and biomass rate were determined. The highest lipid content (34.6%) for P. tricornutum in the study was obtained from the culture with 1.064gl(-1) biomass rate, 8.50% protein it the panel PBR system with 50% nitrogen reduction and 7 cm light path. The lowest lipid content and highest protein were found as 29.76%, 10.12% respectively, at 1 cm light path PBR system with 50% nitrogen reduction. The highest OD and lowest chl a were found in the 7 cm light path PBR system with a 50% nitrogen reduction.