Abstract
Different sources of nitrogen can affect the growth and biochemical composition of microalgae. The present study was conducted to determine the effect of different nitrogen sources on algal growth, carbohydrate and protein contents, of freshwater microalgae Chlorococcum sp. Three different nitrogen sources were used in this study including sodium nitrate, ammonium chloride and urea. The cultivation of the algae of different nitrogen sources took place in the same parameter conditions (24 hours of light duration; 25 ± 1 °C of temperature; 7.20 ± 0.02 of pH). The algal cells were harvested at the early stationary phase for biochemical analysis. The number of cells were quantified by using a counting chamber (haemocytometer) and growth curves were plotted to determine the growth rate. The results revealed that Chlorococcum sp. cultivated in urea as the nitrogen source exhibited the highest growth rate. Apart from that, it was also found that the cells cultivated in urea displayed the highest carbohydrate and protein content as compared to the other two nitrogen sources which were 25.5% and 18.7%, respectively. Moreover, the cells cultivated in urea were medium in size during early stationary phase indicating urea the best nitrogen source for Chlorococcum sp. under controlled conditions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IOP Conference Series: Earth and Environmental Science
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
