Morpho-taxonomic, genetic, and biochemical characterization of freshwater microalgae as potential biodiesel feedstock

被引:0
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作者
Anisha Sehgal
Kongkana Goswami
Mintu Pal
Channakeshavaiah Chikkaputtaiah
Pankaj Chetia
Hari Prasanna Deka Boruah
机构
[1] CSIR-North East Institute of Science and Technology,Biotechnology Group, Biological Science and Technology Division
[2] Dibrugarh University,Department of Life Sciences
[3] Academy of Scientific and Innovative Research,undefined
来源
3 Biotech | 2019年 / 9卷
关键词
Biodiesel properties; Confocal microscopy; Fatty acid profiling; Lipid; Phylogeny;
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学科分类号
摘要
In the present study, seven axenic fresh water microchlorophytes were isolated and identified as Tetradesmus dimorphus (NEIST BT-1), Chlorella sorokiniana (NEIST BT-2), Desmodesmus sp. (NEIST BT-10), Selenastrum sp. (NEIST BT-A6), Tetradesmus obliquus (NEIST BT-A1), Tetradesmus sp. (NEIST BT-A10), and Asterarcys sp. (NEIST BT-A15) based on morphological and molecular characterization. Their potential to be used as biodiesel feedstock was evaluated depending on their growth characteristics and lipid profiles. Among the seven isolates, NEIST BT-2 was found to be the most promising candidate owing to its high biomass yield (2.09 ± 0.037 g L−1) and lipid productivity (107.60 ± 10.175 mg L−1 day−1). The gas chromatography analysis confirmed the presence of significant amounts of palmitic acid, linoleic acid, linolenic acid, and oleic acid in the isolate which are some of the major constituents of any biodiesel. The predictive models showed that the biodiesel from this isolate has ideal fuel properties which comply with the ASTM D6751 and EN 14214 specifications. These findings demonstrate that NEIST BT-2 can be used as a prospective candidate for consideration of large-scale biodiesel production.
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