TY - JOUR
T1 - Effect of nitrate on lipid production by T. suecica, M. contortum, and C. minutissima
AU - Sánchez-García, Didier
AU - Resendiz-Isidro, Anayelli
AU - Villegas-Garrido, Thelma Lilia
AU - Flores-Ortiz, César Mateo
AU - Chávez-Gómez, Benjamín
AU - Cristiani-Urbina, Eliseo
N1 - Funding Information:
The authors gratefully acknowledge the support provided by the scientific team of the Central Laboratories of Spectroscopy, and Biotechnology and Molecular Biology at National School of Biological Sciences, National Polytechnic Institute, as well as the financial support provided by the Secretariat of Posgraduate Studies and Research, National Polytechnic Institute. T.L. Villegas-Garrido and E. Cristiani-Urbina are fellow holders of a grant from the Commission for Support and Operation of Academic Activities, National Polytechnic Institute, Mexico City, Mexico.
PY - 2013
Y1 - 2013
N2 - Microalgae are an alternative and sustainable source of lipids that can be used as a feedstock for biodiesel production. Nitrate is a good nitrogen source for many microalgae and affects biomass and lipid yields of microalgae. In this study, the effect of nitrate on cell growth and lipid production and composition in Monoraphidium contortum, Tetraselmis suecica, and Chlorella minutissima was investigated. Nitrate affected the production of biomass and the production and composition of lipids of the three microalgae tested. Increasing the nitrate concentration in the culture medium resulted in increased biomass production and higher biomass productivity. Furthermore, increasing the nitrate concentration resulted in a reduction in lipid content and productivity in M. contortum; however, the opposite effect was observed in T. suecica and C. minutissima cultures. C. minutissima and M. contortum lipids contain high levels of oleic acid, with values ranging from 26 to 45. 7% and 36. 4 to 40. 1%, respectively. The data suggest that because of its high lipid productivity (13. 79 mg L-1 d-1) and high oleic acid productivity (3. 78 mg L-1 d-1), Chlorella minutissima is a potential candidate for the production of high quality biodiesel.
AB - Microalgae are an alternative and sustainable source of lipids that can be used as a feedstock for biodiesel production. Nitrate is a good nitrogen source for many microalgae and affects biomass and lipid yields of microalgae. In this study, the effect of nitrate on cell growth and lipid production and composition in Monoraphidium contortum, Tetraselmis suecica, and Chlorella minutissima was investigated. Nitrate affected the production of biomass and the production and composition of lipids of the three microalgae tested. Increasing the nitrate concentration in the culture medium resulted in increased biomass production and higher biomass productivity. Furthermore, increasing the nitrate concentration resulted in a reduction in lipid content and productivity in M. contortum; however, the opposite effect was observed in T. suecica and C. minutissima cultures. C. minutissima and M. contortum lipids contain high levels of oleic acid, with values ranging from 26 to 45. 7% and 36. 4 to 40. 1%, respectively. The data suggest that because of its high lipid productivity (13. 79 mg L-1 d-1) and high oleic acid productivity (3. 78 mg L-1 d-1), Chlorella minutissima is a potential candidate for the production of high quality biodiesel.
KW - Biodiesel
KW - Chlorella minutissima
KW - Fatty acid composition
KW - Lipid production
KW - Monoraphidium contortum
KW - Tetraselmis suecica
UR - http://www.scopus.com/inward/record.url?scp=84875016445&partnerID=8YFLogxK
U2 - 10.2478/s11535-013-0173-6
DO - 10.2478/s11535-013-0173-6
M3 - Artículo
SN - 1895-104X
VL - 8
SP - 578
EP - 590
JO - Central European Journal of Biology
JF - Central European Journal of Biology
IS - 6
ER -