Optimization of high-value bio-product extraction from microalgae biomass: Effect of temperature and light intensity

Keyhan Divsalar¹ Mohsen Taghavijeloudar²

1) Faculty of Chemical Engineering, Babol University of Technology, 47148-71167, Babol, Iran
2) PhD of Environment Engineering, Department of Civil and Environmental Engineering, Seoul National University, 151‑744 Seoul, South Korea

Publication : International Congress on Science, engineering & New Technologies(secongress.com/1st)
Abstract :
High value bio-products extraction from microalge has received great attention as a sustainable alternative for traditional source of energy. However, bio-products extraction from microalge is highly depends on culture conditions such as temperature and light intensity. In this research, the effect of different temperature and light intensity on microalge growth rate and high value bio-product extraction of carbohydrate, protein and lipid was investigated. S. Platensis and Zarrouk were used as microalge and culture medium, respectively. According to the results, maximum biomass concentration of 1.6 g/L was achieved under 35 °C temperature and 3000 lux light intensity. Regarding bio-product extraction, maximum concentration of 19, 54 and 25 %MDW of carbohydrate, protein and lipid were recorded under optimal condition of light intensity (3000 Lux) and temperature (35 °C), respectively. The findings of this research proved that microalge biomass cultivation under an appropriate condition can be considered as a promising approach for high value bio-product production such as carbohydrate, protein and lipid.
Keywords : Microalage Bio-products Lipid Protein Carbohydrate Optimization