G. Chinni, B. Subeshan, M.M. Rahman, R. Asmatulu
Wichita State University,
Keywords: algae growth, harvesting, oil extraction, nanoemulsion, energy
Summary:Recently, environmental concerns have been rising in the world because of the greenhouse gasses, such as CO2, N2O, CH4, and fluorinated gases and industrial products, which in turn cause irreversible climate changes. Algal oils are considered to be one of the promising alternatives of natural sources for energy production, but the lipid accumulation and lipid productivity of microalgae has been far from the desired levels. This research focuses on culturing spirulina algae in a tank in the laboratory with optimum growth conditions over a period of 40 days. Then, the lipid content was increased by growing microalgae in stressful conditions under low temperature, light and low nutrient supply. After the lipid extractions, produced algae oil was converted into nanoemulsion using surfactant and sonication process.