title: Effect of nitrogen, salt, and iron content in the growth medium and light intensity on lipid production by microalgae isolated from freshwater sources in Thailand.
abstract: Four green microalgae (TRG, KB, SK, and PSU) identified as Botryococcus spp. by morphological criteria were isolated from lakes and freshwater ponds in southern Thailand. In nitrogen-rich medium the strains achieved a lipid content of 25.8%, 17.8%, 15.8% and 5.7%, respectively. A combination of nitrogen deficiency, moderately high light intensity (82.5 μE m(-2) s(-1)) and high level of iron (0.74 mM) improved lipid accumulation in TRG, KB, SK, and PSU strains up to 35.9%, 30.2%, 28.4% and 14.7%, respectively. The lipid contents and plant oil-like fatty acid composition of the microalgae suggested their potential as biodiesel feedstock.
authors.affiliation: Department of Industrial Biotechnology, Faculty of Agro-Industry, Prince of Songkla University, Hat-Yai, Thailand.
authors.forename: Chittra
authors.initials: C
authors.lastname: Yeesang
authors.forename: Benjamas
authors.initials: B
authors.lastname: Cheirsilp
mesh_terms: D005618:Fresh Water / Q000382:microbiology*; D007501:Iron / Q000378:metabolism*; D050356:Lipid Metabolism / Q000502:physiology*; D058086:Microalgae / Q000378:metabolism*; D009584:Nitrogen / Q000378:metabolism*; D012492:Salts / Q000378:metabolism*; D013045:Species Specificity; D013785:Thailand
chemical_list: D012492:Salts; D007501:Iron; D009584:Nitrogen