Limiting nitrogen affect the quantity of oil retained by the State to limit the amount of nitrogen in a 4: 25, 0.025, 0.25 and 2.5 grams per liter. I found that the quantity of nitrogen that is 0.25 grams per liter. Oil quantity (dry weight by) most, because when the algae lack nitrogen creates a carbon compounds as a substitute. For this reason, researchers are interested in admission to state the quantity of nitrogen that is 0.25 grams per liter. Any time in the appropriate growth harvesting oil from algae to see trends in the growth of algae that is going in the same direction the oil accumulation in the cells of algae or not. Using algae Chlorella ellipsoidea strains from experiments in breeding, there diet to control nitrogen and measure the growth of algae to find a graph the growth of algae (Growth curve), as well as for the quantity of oil extracted in the algae cells in different durations of algae. To analyze to find the most appropriate interval growth
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