Effects of light intensity on biomass, carbohydrate and fatty acid compositions of three different mixed consortia from natural ecological water bodies

Gopalakrishnan Kumar, Dinh Duc Nguyen, Menghour Huy, Periyasamy Sivagurunathan, Péter Bakonyi, Guangyin Zhen, Takuro Kobayashi, Kai Qin Xu, N. Nemestóthy, Soon Woong Chang

Research output: Contribution to journalArticle

Abstract

This study investigated the effect of light intensity on three various microalga consortia collected from natural ecological water bodies (named A, B and C) towards their fatty acid profiling and fractions, carbohydrate and protein production at different light intensities of 100, 200 and 300 μmol m−2 s−1. The results indicating that increasing light intensity positively correlated with the lipid production than carbohydrate and protein. Irrespective to the solids (Total and Volatile Solid) content, lipids and carbohydrate has varied significantly. Consortia C showed higher productivity toward lipids, whereas consortia A and B accumulated more carbohydrate and protein, respectively. The microscopic images revealed the breakdown of cells during the increase in light intensity, in spite, the similar algal species were observed in all consortia experimented. Principal component analysis (PCA) revealed that low light intensity aid relatively in high protein, Total Nitrogen and Total Phosphorus, meanwhile high intensity attributed carbohydrates and unsaturated fatty acids (USFA) contents.

LanguageEnglish
Pages293-300
Number of pages8
JournalJournal of Environmental Management
Volume230
DOIs
Publication statusPublished - Jan 15 2019

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Carbohydrates
Fatty acids
light intensity
Principal component analysis
Lipids
carbohydrate
principal component analysis
Biomass
fatty acid
lipid
biomass
Proteins
Chemical analysis
protein
Water
Unsaturated fatty acids
microalga
Phosphorus
aid
Productivity

Keywords

  • Light intensity
  • Lipid
  • Mixed microalgae consortia
  • Principal component analysis (PCA)
  • USFA

ASJC Scopus subject areas

  • Environmental Engineering
  • Waste Management and Disposal
  • Management, Monitoring, Policy and Law

Cite this

Effects of light intensity on biomass, carbohydrate and fatty acid compositions of three different mixed consortia from natural ecological water bodies. / Kumar, Gopalakrishnan; Nguyen, Dinh Duc; Huy, Menghour; Sivagurunathan, Periyasamy; Bakonyi, Péter; Zhen, Guangyin; Kobayashi, Takuro; Xu, Kai Qin; Nemestóthy, N.; Chang, Soon Woong.

In: Journal of Environmental Management, Vol. 230, 15.01.2019, p. 293-300.

Research output: Contribution to journalArticle

Kumar, Gopalakrishnan ; Nguyen, Dinh Duc ; Huy, Menghour ; Sivagurunathan, Periyasamy ; Bakonyi, Péter ; Zhen, Guangyin ; Kobayashi, Takuro ; Xu, Kai Qin ; Nemestóthy, N. ; Chang, Soon Woong. / Effects of light intensity on biomass, carbohydrate and fatty acid compositions of three different mixed consortia from natural ecological water bodies. In: Journal of Environmental Management. 2019 ; Vol. 230. pp. 293-300.
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