Optimization of growth of two microalgal isolates for biofuel feedstock

Authors

  • NM Ali Department of Soil, Water and Environment, University of Dhaka, Dhaka-1000
  • NJ Tarin Department of Soil, Water and Environment, University of Dhaka, Dhaka-1000
  • MN Mondol Department of Soil, Water and Environment, University of Dhaka, Dhaka-1000
  • AS Chamon Department of Soil, Water and Environment, University of Dhaka, Dhaka-1000
  • A Aziz Department of Botany, University of Dhaka, Dhaka-1000
  • MM Rahman Department of Soil, Water and Environment, University of Dhaka, Dhaka-1000

DOI:

https://doi.org/10.3329/bjsir.v51i3.29418

Keywords:

Algae, Green alga, Blue-green alga, Chlamydomonas noctigama, Nostoc spongiaeforme, Optimization

Abstract

A research involving random isolation and characterization of naturally occurring microalgae in Bangladesh was carried out for assessing their potential for biofuel feedstock and other uses. Among the isolates, one identified as a green alga Chlamydomonas noctigama and another one as blue-green alga Nostoc spongiaeforme were grown in modified Chu-10D medium. The optimization of their growth was performed following incubation of the isolates under different levels of media concentration, temperature, pH, light intensity and aeration. Both the species showed optimum growth in terms of total chlorophyll at a temperature of 25oC. However, significant differences (at 5% level) in growth were observed for the isolates under other conditions. The optimum growth of Chlamydomonas noctigama was observed for the vitamin B1+B6, whereas there was no significant difference on growth of Nostoc spongiaeforme for any vitamin supplement. The optimum pH for the growth of Chlamydomonas noctigama and Nostoc spongiaeforme were 6.5 and 7.5, light intensity 110 µEm-2s-1and 70 µEm-2s-1, and media concentration 2x and 1x of normal concentration, respectively.

Bangladesh J. Sci. Ind. Res.51(3), 183-192, 2016

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Published

2016-09-05

How to Cite

Ali, N., Tarin, N., Mondol, M., Chamon, A., Aziz, A., & Rahman, M. (2016). Optimization of growth of two microalgal isolates for biofuel feedstock. Bangladesh Journal of Scientific and Industrial Research, 51(3), 183–192. https://doi.org/10.3329/bjsir.v51i3.29418

Issue

Vol. 51 No. 3 (2016)

Section

Articles

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