Journal
BIOPROCESS AND BIOSYSTEMS ENGINEERING
Volume 36, Issue 6, Pages 827-833Publisher
SPRINGER
DOI: 10.1007/s00449-013-0919-1
Keywords
Biomass production; Freshwater microalgae; Fatty acids; Lipid content; Sodium chloride
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Two freshwater microalgae including Chlamydomonas mexicana and Scenedesmus obliquus were grown on Bold Basal Medium (BBM) with different levels of salinity up to 100 mM NaCl. The dry biomass and lipid content of microalgae were improved as the concentration of NaCl increased from 0 to 25 mM. Highest dry weight (0.8 and 0.65 g/L) and lipid content (37 and 34 %) of C. mexicana and S. obliquus, respectively, were obtained in BBM amended with 25 mM NaCl. The fatty acid composition of the investigated species was also improved by the increased NaCl concentration. At 50 mM, NaCl palmitic acid (35 %) and linoleic acid (41 %) were the dominant fatty acids in C. mexicana, while oleic acid (41 %) and alpha-linolenic acid (20 %) were the major fractions found in S. obliquus.
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