Central composite design (CCD) optimization of phytohormones supplementation for enhanced cyanobacterial biodiesel production

被引：20
作者：
Anahas, Antonyraj Matharasi Perianaika [1 ]
Muralitharan, Gangatharan [1 ]
机构：
[1] Bharathidasan Univ, Ctr Excellence Life Sci, Dept Microbiol, Tiruchirappalli 620024, Tamil Nadu, India
来源：
RENEWABLE ENERGY | 2019年 / 130卷
关键词：
Cyanobacteria; Lipid enhancement; FAME profiles; Biodiesel quality; Chemical modulators; FRESH-WATER MICROALGAE; FATTY-ACID-COMPOSITION; LIPID-ACCUMULATION; FUEL PROPERTIES; BIOMASS PRODUCTIVITY; REACTION-KINETICS; MASS-TRANSFER; CHEMICAL-PROPERTIES; CARBON-SOURCES; CHLORELLA SP;
D O I：
10.1016/j.renene.2018.06.110
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Based on our previous findings, two potent cyanobacterial strains namely, Anabaena sphaerica MBDU 105 and Nostoc calcicola MBDU 602 showed suitability for biodiesel production were chosen in this study to enhance biomass and lipid accumulation. The present study investigated the effect of nutrient supplementation with different carbons sources, chemical modulators and nutrient starvation on lipid accumulation. Nutrient supplementation with organic carbon sources yielded higher biomass (5.38-7.96 fold) and lipid productivity (2.81-2.19 fold) rather than lipid content. For chemical modulators, indole-3-carboxaldehyde (13C) and kinetin (KT) increased lipid accumulation by 22 +/- 1.9 and 34 +/- 1 (% dwt), respectively. Therefore, central composite design was performed to assess the interactive effect of 13C and KT on lipid content, biomass and lipid productivity, fatty acid composition and their fuel properties. To the best of our knowledge, this is the first report demonstrating that DC promote the biomass and lipid productivity of tested heterocystous cyanobacterial strains. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：749 / 761
页数：13
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