Potential use of a thermal water cyanobacterium as raw material to produce biodiesel and pigments.

摘要: Global energy demand is increasing every day and most still derived from non-renewable sources. Therefore, sustainable alternatives are sought to produce biofuels, such as biodiesel. Several studies have demonstrated the potential of microalgae cyanobacteria biodiesel pigments. These pigments, lutein astaxanthin, a high commercial value can economically support production However, few explored collected in thermal water. In these microorganisms, both biomass metabolites be altered by culture form. Thus, cosmopolitan filamentous cyanobacterium (Geitlerinema amphibium) water was isolated evaluate its fatty acids, biodiesel, pigments two media. G. amphibium cultured WC (Wright's Cryptophyte) BBM (Bold’s Basal Medium) Thermal stress (40 °C for 48 h) applied medium, which generated higher productivity BBM. The contained content medium pigment medium. increased 350%, but decreased content. Two with (astaxanthin lutein) were identified. produced up 2.74 mg g−1 astaxanthin 5.49 mg g−1 lutein, seven times more than Marigold, currently main raw material used commercially. has concomitantly.