Evaluation of the Microalga Graesiella sp. as Biofuel Feedstock
June 15, 2016http://biotechnologyforbiofuels.biomedcentral.com/articles/10.1186/s13068-016-0541-y
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Commercial production of microalgal biodiesel is not yet viable, due to low lipid yield in mass cultivation. Thus, selection of lipid-rich microalgae is a key for microalgal biodiesel production. However, comprehensive assessment of microalgae should be performed in laboratory conditions as well as in the field.
Chinese Academy of Sciences researchers investigated 63 strains of microalga and found that Graesiella sp. WBG-1 was the most productive species. Based on these results, the microalga was further tested using a pilot-scale raceway pond. Graesiella sp. WBG-1 maintained a high lipid content, of which ~90 % were storage TAGs.
Results from the outdoor experiments indicated the nice adaptability of the Graesiella sp. WBG-1 and demonstrated several other features, such as large cell size and tolerance to high culture pH. These results also indicate the potential of the strain for pilot-scale production.
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