Effects of Nitrogen and Phosphorus Concentrations on the Growth and Lipid Accumulation of Microalgae Scenedesmus obliquus

Authors : Leyla USLU, Oya IŞIK, Yasemin BARIŞ, Selin SAYIN

Pages : 194-201

Doi:10.33714/masteb.1100624

View : 62 | Download : 5

Publication Date : 2022-06-24

Article Type : Research Paper

Abstract :In the study, Scenedesmus obliquus green algae was cultivated under laboratory conditions at 21±2°C, 16:8 insert ignore into journalissuearticles values(light:dark); photoperiod and continuous aeration in different nitrogen and phosphorus ratio nutrient medium and its growth was determined. Dry weight, cell density insert ignore into journalissuearticles values(optical density); and chlorophyll a and b were used to determine the growth of the algae. The best growth was determined in the group consisting of 30 ml NaNO 3 +10 ml PO 4 . The amount of biomass obtained was determined as 1.549 gL -1 in this group. The lowest values were the group containing 5 ml NaNO 3 +5 ml PO 4 . With the decrease in the amount of nitrogen in the medium, an increase in the amount of carotene and a decrease in the amount of chl a and b were detected. The highest lipid values were determined as 36.7% in the group containing 5 ml NaNO 3 +5 ml PO 4 and 36.2% in the group containing 5 ml NaNO 3 +10 ml PO 4 .
Keywords : Growth, Lipid, Scenedesmus obliquus, Nitrogen concentration, Phosphorus concentration

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