Lipid enhancement in microalgae by temporal phase separation: Use of indigenous sources of nutrients

Nidhin Sreekumar; Ajit Haridas; G. S. Godwin; N. Selvaraju

doi:10.1016/j.cjche.2017.03.004

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Lipid enhancement in microalgae by temporal phase separation: Use of indigenous sources of nutrients

Biotechnology and Bioengineering | Updated：2026-01-06

- Lipid enhancement in microalgae by temporal phase separation: Use of indigenous sources of nutrients
- Chinese Journal of Chemical Engineering Vol. 26, Issue 1, Pages: 175-182(2018)
- Affiliations：
  
  2 National Institute for Interdisciplinary Science and Technology(NⅡST), Council of Scientific & Industrial Research(CSIR), Thiruvananthapuram,India
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2017.03.004
  CLC：
- Published：2018
- Accepted：
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Nidhin Sreekumar, Ajit Haridas, G. S. Godwin, N. Selvaraju. Lipid enhancement in microalgae by temporal phase separation: Use of indigenous sources of nutrients[J]. Chin.J.Chem.Eng., 2018, 26(1): 175-182.
DOI：

Nidhin Sreekumar, Ajit Haridas, G. S. Godwin, N. Selvaraju. Lipid enhancement in microalgae by temporal phase separation: Use of indigenous sources of nutrients[J]. Chin.J.Chem.Eng., 2018, 26(1): 175-182. DOI： 10.1016/j.cjche.2017.03.004.

摘要

Abstract

Microalgae have been recommended as superior candidate for fuel production because of their advantages of higher photosynthetic efficiency

biomass lipid productivity

and faster growth rate as compared to other energy crops. To meet up all these criteria

we have developed a continuous outdoor micro-algal raceway pond reactor (RPR) and a lab scale indoor tubular photo bioreactor (PBR) for biofuel production. An attempt to utilise indigenous sources of nutrients to improve the economics also revealed that micro-algal culturing can also be used as a mode of nutrient removal and water treatment. The photosynthetic rate and lipid production were enhanced by arresting daytime cell division and promoting night-time cell division. A 50% lipid improvement was observed for the particular algal consortia. Microscopic studies revealed that temporal phase separation could be achieved by adjusting nutrient distribution pattern. To monitor temporal phase separation

it is required to know DNA multiplication model. Quantification of gDNA in RPR confirmed that cell division happens during the night which positively affects the photosynthetic efficiency and lipid productivity of microalgae.

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