Comparative physicochemical analysis of suspended and immobilized cultivation of Chlorella sp.
Article first published online: 23 APR 2012
© 2012 Society of Chemical Industry
Journal of Chemical Technology and Biotechnology
Volume 88, Issue 2, pages 247–254, February 2013
How to Cite
Zeng, X., Danquah, M. K., Halim, R., Yang, S., Chen, X. D. and Lu, Y. (2013), Comparative physicochemical analysis of suspended and immobilized cultivation of Chlorella sp. J. Chem. Technol. Biotechnol., 88: 247–254. doi: 10.1002/jctb.3821
- Issue published online: 22 JAN 2013
- Article first published online: 23 APR 2012
- Manuscript Accepted: 13 MAR 2012
- Manuscript Revised: 10 MAR 2012
- Manuscript Received: 31 JAN 2012
- biochemical analysis;
- immobilized cultivation;
- wastewater treatment;
- biofuels development
BACKGROUND: Immobilized cultivation of microorganisms is gaining interest in the microalgae industry. In this study, a novel microalgae polymeric carrier, sodium cellulose sulphate/poly-dimethyl-diallyl-ammonium chloride (NaCS-PDMDAAC) capsule system, was employed to immobilize Chlorella sp. Microalgae cultivation was performed under immobilized and suspended conditions, and the resulting cells were characterized biochemically and physically.
RESULTS: Experimental results indicated that microalgae cells cultivated under NaCS-PDMDAAC immobilized conditions have a robust morphology, a smaller average cell size of 2.92 µm and a higher Zeta potential of − 17.10 mV than the suspended cells with a cell size of 6.81 µm and Zeta potential of − 32.90 mV. The immobilized microalgae cells displayed a total lipid content of 14.85%, and a chlorophyll content of 3.36%, slightly higher than those obtained from the suspended cells.
CONCLUSION: These differences are critical to further explore the impact of immobilized microalgae cultivation systems for specific biotechnological applications. © 2012 Society of Chemical Industry