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The chemometric approach applied to FTIR spectral data for the analysis of lipid content in microalgae cultivated in different nitrogen sources

Content Provider	Springer Nature Link
Author	Difusa, Amrita Mohanty, K. Goud, Vaibhav V.
Copyright Year	2016
Abstract	Microalgae-based biofuel production has emerged as a potential sector to extend its sustainability. Corresponding to many factors imbibed, nitrogen is considered as an essential element for microalgae cultivation. Among the four studied nitrogen sources, sodium nitrate (Na) and urea (U) showed high lipid content of 35.86 ± 2.3 and 37.35 ± 0.32 %, respectively. In terms of lipid yield, the four investigated nitrogen sources are represented in preferrential order, i.e., urea > sodium nitrate > ammonium nitrate > potassium nitrate. The Fourier transform infrared spectroscopy (FTIR) fingerprint of oil recovered from Chloromonas species ADIITEC-III, cultivated in different nitrogen sources, were analyzed using chemometric techniques. The chemometric techniques, i.e., cluster analysis, multidimensional scaling (MDS), and a multivariate calibration of principal component analysis (PCA), were assessed to analyze the existing spectral signatures specific to the lipid-acyl chain (3000–2800 cm$^{−1}$) and biomolecular fingerprint region (1800–1000 cm$^{−1}$) in the FTIR spectrum of the sample. The study of FTIR-coupled chemometric techniques complements the response of the nitrogen sources in lipid yield and confirmed the reliability of the method.
Starting Page	427
Ending Page	433
Page Count	7
File Format	PDF
ISSN	21906815
Journal	Biomass Conversion and Biorefinery
Volume Number	6
Issue Number	4
e-ISSN	21906823
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-01-26
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Chemometrics FTIR spectroscopy Chloromonas species ADIITEC-III Principal component analysis Cluster analysis Renewable and Green Energy Biotechnology
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment

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