Isolation and screening of Tetradesmus dimorphus and Desmodesmus asymmetricus from natural habitats in Northwestern China for clean fuel production and N, P removal
Isolation and screening of microalgal species from natural habitats should be a continues work to discover effective species for biofuel generation and wastewater treatment. In the current study, microalgal species namely Tetradesmus dimorphus GEEL-04 and Desmodesmus asymmetricus GEEL-05 were isolat...
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Veröffentlicht in: | Biomass conversion and biorefinery 2022-05, Vol.12 (5), p.1503-1512 |
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Sprache: | eng |
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Zusammenfassung: | Isolation and screening of microalgal species from natural habitats should be a continues work to discover effective species for biofuel generation and wastewater treatment. In the current study, microalgal species namely
Tetradesmus dimorphus
GEEL-04 and
Desmodesmus asymmetricus
GEEL-05 were isolated, identified, and assessed for growth kinetics, nutrients removal efficiency, and whole biomass composition.
T
.
dimorphus
showed higher growth (1.46 OD
680nm
) compared with
D
.
asymmetricus
(1.16 OD
680nm
), and both showed 99% total nitrogen and total phosphorous removal.
T
.
dimorphus
and
D. asymmetricus
accumulated higher protein content (40.02 and 45.10%), carbohydrate (31.91 and 24.64%), and lipid (15.41 and 24.16%), respectively. The FTIR spectra absorbance revealed different function groups in microalgal biomass available for biofuel generation. Elemental analysis of microalgal biomass showed high carbon content 50.13% and 43.01% for
T
.
dimorphus
and
D
.
asymmetricus
, respectively. Thermogravimetric analysis indicated ≥ 80% volatile content in both isolates. The fatty acid composition of both microalgal strains showed high palmitic acid and linoleic acid corresponding to high quality biodiesel. These results indicated that the
T
.
dimorphus
and
D
.
asymmetricus
could be potential candidates for high biocomponents accumulation and N, P removal.
Graphical abstract |
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ISSN: | 2190-6815 2190-6823 |
DOI: | 10.1007/s13399-020-01034-z |