publication . Article . Other literature type . 2011

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

Yeesang, Chittra; Cheirsilp, Benjamas;
  • Published: 01 Feb 2011 Journal: Bioresource Technology, volume 102, pages 3,034-3,040 (issn: 0960-8524, Copyright policy)
  • Publisher: Elsevier BV
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.
free text keywords: Food science, Composition (visual arts), Microorganism, Aquatic plant, Botryococcus, biology.organism_classification, biology, Botany, Nitrogen deficiency, Biochemistry, Salinity, Chemistry, Growth medium, chemistry.chemical_compound, Nitrogen, chemistry.chemical_element
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