Effect of Phosphorus on the Growth, Pigmentation and Lipid Accumulation in Microalgae Picochlorum sp.

Abstract

Picochlorum sp. algae are recognized for their abundant bioactive compounds, which include valuable substances such as astaxanthin, carotenoids, fatty acids, and lutein. The significant total lipid content found in Picochlorum sp. algae presents diverse opportunities for utilization across the realms of bioenergy, food, and pharmaceuticals. phosphorus concentrations ranging from 0.02 g/L to 0.16 g/L, the growth of Picochlorum sp. did not exhibit any significant differences across these concentrations. However, the chlorophyll and carotenoid contents peaked in the control group and at phosphorus concentrations of 0.02 g/L and 0.04 g/L, respectively, after 12 days of cultivation. In contrast, the lipid content increased in both the control group and at a phosphorus concentration of 0.16 g/L after 9 days of cultivation.