Heterotrophic microalgal cultivation

Dillirani Nagarajan, Duu Jong Lee, Jo Shu Chang

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Microalgae are being increasingly recognized as a promising solution for the search of sustainable energy resources and it has been successfully used as a feedstock for the production of liquid and gaseous biofuels. Photoautotrophic cultivation of microalgae in open ponds by utilizing sunlight and atmospheric carbon dioxide is commonly known as the most economic means for cost effective cultivation of microalgal biomass production, but is limited by optimal supply of sunlight and carbon dioxide, night biomass loss, low biomass productivity and contamination problems. Microalgae are capable of utilizing organic carbon sources, grow and metabolize in the absence of sunlight/dark conditions. Heterotrophic cultivation overcomes the light supply predicament of photoautotrophy, and in the present scenario it can be easily adapted for commercial scale production of microalgal biomass. In addition, heterotrophic cultivation is metabolically favorable for higher lipid accumulation and would be beneficial in biodiesel production. Current commercial production of polyunsaturated fatty acids are being dominated by heterotrophic marine algae. This chapter discusses in detail the heterotrophic metabolism of microalgae, the factors affecting heterotrophic cultivation and the commercial products of interest that can be obtained. The future perspectives for heterotrophic cultivation as a potential solution for obtaining large scale microalgal biomass is presented.

Original languageEnglish
Title of host publicationGreen Energy and Technology
PublisherSpringer Verlag
Pages117-160
Number of pages44
Edition9789811076763
DOIs
Publication statusPublished - 2018 Jan 1

Publication series

NameGreen Energy and Technology
Number9789811076763
ISSN (Print)1865-3529
ISSN (Electronic)1865-3537

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All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Management, Monitoring, Policy and Law
  • Industrial and Manufacturing Engineering

Cite this

Nagarajan, D., Lee, D. J., & Chang, J. S. (2018). Heterotrophic microalgal cultivation. In Green Energy and Technology (9789811076763 ed., pp. 117-160). (Green Energy and Technology; No. 9789811076763). Springer Verlag. https://doi.org/10.1007/978-981-10-7677-0_4