Abstract
In the present study, Synechococcus elongatus and Anabaena, two cyanobacterial species were cultured using different media conditions such as ASN III, modified ASN III, BG-11, and BBM for the enrichment of biomass and lipid productivity. The experimental result clearly shows that BG 11 was the efficient and cost-effective medium for both the isolated cyanobacterial species such as Synechococcus elongatus and Anabaena. The influence of organic carbon sources on biomass and lipid productivity of the selected cyanobacterial species were studied when cultivated in a BG-11 medium using different organic carbon sources such as sucrose, glucose, sodium acetate and glycerol under mixotrophic conditions. Based on the experimental results, the isolated cyanobacterial strain Synechococcus elongatus and Anabaena showed an enriching effect on lipid production under mixotrophic conditions, but whereas Synechococcus elongatus showed a significant effect three times greater lipid productivity compared with Anabaena cyanobacterial strain, by the addition of glycerol as a supplement to the culture media.
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