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

Autor: Sehgal A; 1Biotechnology Group, Biological Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006 India.; 2Department of Life Sciences, Dibrugarh University, Dibrugarh, Assam 786004 India., Goswami K; 1Biotechnology Group, Biological Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006 India.; 3Academy of Scientific and Innovative Research, New Delhi, 110001 India., Pal M; 1Biotechnology Group, Biological Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006 India., Chikkaputtaiah C; 1Biotechnology Group, Biological Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006 India., Chetia P; 2Department of Life Sciences, Dibrugarh University, Dibrugarh, Assam 786004 India., Boruah HPD; 1Biotechnology Group, Biological Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006 India.
Jazyk: angličtina
Zdroj: 3 Biotech [3 Biotech] 2019 Apr; Vol. 9 (4), pp. 137. Date of Electronic Publication: 2019 Mar 12.
DOI: 10.1007/s13205-019-1664-1
Abstrakt: 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), S elenastrum 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.
Competing Interests: Compliance with ethical standardsThe authors declare no conflict of interest.
Databáze: MEDLINE
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