Initial population density plays a vital role to enhance biodiesel productivity of Tetraselmis sp. under reciprocal nitrogen concentration. (September 2018)

• Record Type: Journal Article
• Authors: Dinesh Kumar, S.; Ro, Kwang-Min; Santhanam, P.; Dhanalakshmi, B.; Latha, S.; Kim, Mi-Kyung
• Is Part Of: Bioresource technology reports. Volume 3(2018)
• Page Start: 15
• Page End: 21
• Publication Date: 2018-09
• Subjects: Initial population density -- Nitrogen -- Tetraselmis sp. -- Biofuel -- Lipid -- Fatty acid; Biomass energy -- Periodicals; Biotransformation (Metabolism) -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Waste products as fuel -- Periodicals; Waste products as fuel; Organic wastes; Factory and trade waste; Biotransformation (Metabolism); Biomass energy; Agricultural wastes; Periodicals; Electronic journals; 662.88
• DOI: 10.1016/j.biteb.2018.05.008
• Languages: English
• ISSNs: 2589-014X

Abstract

Abstract: This study reveal the combined effect of initial population density (IPD) (0.1, 0.5 and 1.0 g L −1 ) and nitrogen (0 N-nil nitrogen; 1 N-optimized concentration of nitrogen; 2 N–doubling of optimized nitrogen concentration) on growth, biomass, lipid and fatty acid content of the oceanic microalga Tetraselmis sp. were tested. The experiment was carried out in multi-room light-emitting diode chamber for two weeks with continuous illumination of light such as 14:10 h L:D of photoperiod (PP) and 150 μmol m −2 s −1 of photosynthetic photon flux intensity (PPFI). The maximum optical density (1.15 abs), cells concentration (253 × 10 4 cells mL −1 ), chlorophyll 'a' (2.68 mg L −1 ) and fatty acids content were found in the combination of 0.5 g L −1 initial population density and 1 N, whereas the highest biomass (0.95 g L −1 ) was noticed in 1 g L −1 initial population density and 2 N, and total lipid (48 ± 1.14%) was high in 0.5 g L −1 initial population density and 2 N combination. Highlights: First report about combination of IPD and nitrogen on the biomass production Higher IPD could be trigging the biomass production of microalga than the lower IPD. Moderate IPD (0.5 g L −1 ) and nitrogen (1 N) expose the highest FAME content. Maximum lipid production was observed in 2 N: 0.5 g L −1 IPD combination.