Effect of flue gas CO2 on the growth, carbohydrate and fatty acid composition of a green microalga Scenedesmus obliquus for biofuel production. Issue 16 (18th August 2017)

• Record Type: Journal Article
• Authors: Ji, Min-Kyu; Yun, Hyun-Shik; Hwang, Jae-Hoon; Salama, El-Sayed; Jeon, Byong-Hun; Choi, Jaeyoung
• Is Part Of: Environmental technology. Volume 38:Issue 16(2017)
• Page Start: 2085
• Page End: 2092
• Publication Date: 2017-08-18
• Subjects: Flue gas CO2 -- microalgae -- S. obliquus -- biomass -- bio-energy; Environmental engineering -- Periodicals; Environmental protection -- Periodicals; 628.05
• DOI: 10.1080/09593330.2016.1246145
• Languages: English
• ISSNs: 0959-3330

Abstract

ABSTRACT: Effect of various flue gas CO2 concentrations (5%, 10% and 14.1%) on growth rate and biochemical properties of a green microalga Scenedesmus obliquus was investigated. S. obliquus showed the highest biomass production and growth rate (0.36 g L −1 and μ max = 1.00 day −1 ), total inorganic carbon removal (35.8 mg L −1 ), lipid productivity (9.9 mg L −1 day) and carbohydrate productivity (10.3 mg L −1 day) with 14.1% CO2 after 8 days of cultivation. Fatty acid methyl ester analysis revealed that the palmitic and oleic acid contents were increased up to 5% and 7% with 14.1% CO2, respectively. Application of flue gas CO2 enhanced the growth along with lipid and carbohydrate productivity of S. obliquus, which can be exploited for reducing the CO2 concentration.