Analysis of the nutritional status of algae by Fourier transform infrared chemical imaging
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Chemometrics in MIR are mostly used to characterize and differentiate multiple microalgae in a sample or the relative abundance of the same microalgae with different nutritional histories.
“Chemometrics in MIR are mostly used to characterize and differentiate multiple microalgae in a sample [49] or the relative abundance of the same microalgae with different nutritional histories [50].”
From Microalgal process-monitoring based on high-selectivity spectroscopy tools: status and future perspectives (2018) · cites this paper as [50]
FTIR with multivariate analysis has been used successfully to classify species and to differentiate the nutritional status of microalgae.
“The application of FTIR to classify species with the help of multivariate analysis [24 -29] and to differentiate the nutritional status of microalgae [30 -34] have been attempted successfully.”
From Response to nutrient variation on lipid productivity in green microalgae captured using second derivative FTIR and Raman spectroscopy (2022) · cites this paper as [31]
As nutrients are depleted, the amount of proteins in microalgae cells reduces, which alters the cell metabolism to accumulate more carbohydrates (1200-1000 cm-1) and lipids in the form of TAGs (~1740 cm-1).
“This indicates that as nutrients are depleted, the amount of proteins in microalgae cells reduces, which alters the cell metabolism to accumulate more carbohydrates (1200-1000 cm -1 ) and lipids in the form of TAGs (~1740 cm -1 )[11,14,31].”
From Response to nutrient variation on lipid productivity in green microalgae captured using second derivative FTIR and Raman spectroscopy (2022) · cites this paper as [31]
PC3 loadings in the amide regions (~1654, 1540 cm-1) are all in the positive direction, indicating that these are likely to be higher on the 20th day compared to the 10th day, where the protein content would be higher in the cells on the 20th day compared to the 10th day.
“PC3 loadings in the amide regions (~1654, 1540cm -1 ) are all in the positive direction indicating that these are likely to be higher on the 20 th day compared to the 10 th day, where the protein content would be higher in the cells on the 20 th day compared to the 10 th day [9,31].”
From Response to nutrient variation on lipid productivity in green microalgae captured using second derivative FTIR and Raman spectroscopy (2022) · cites this paper as [31]
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FT-IR Microspectroscopy Enhances Biological and Ecological Analysis of Algae
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- Authors
- Hirschmugl, C. J., Bayarri, Z.-E., Bunta, M., Holt, J. B., & Giordano, M.
- Affiliations
- University of Wisconsin–Milwaukee (US)
- Philadelphia University (JO)
- Corresponding author
- Hirschmugl, Carol J.
- Venue
- Infrared Physics & Technology
- Publisher
- Elsevier BV
- Published
- 2006-09
- Volume
- 49
- Issue
- 1-2
- Pages
- 57-63
- ISSN
- 1350-4495 (ISSN-L)
- OpenAlex
- W2033570599
- Cited by
- 56
- References
- 20
- Citations by year
- 2026: 1 · 2025: 2 · 2024: 2 · 2023: 2 · 2021: 2 · 2020: 2 · 2019: 1 · 2018: 4 · 2017: 2 · 2016: 3 · 2015: 7 · 2014: 5 · 2013: 5 · 2012: 3
- FWCI
- 1.43
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Infrared Physics & Technology (publishedVersion)
- Università Politecnica delle Marche (Università Politecnica delle Marche) (submittedVersion)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Biophysics › Spectroscopy Techniques in Biomedical and Chemical Research
- Physical Sciences › Chemistry › Analytical Chemistry › Spectroscopy and Chemometric Analyses
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Spectroscopy and Quantum Chemical Studies
- Keywords
- Euglena gracilis, synchrotron infrared spectroscopy, hierarchical clustering, nutrient depletion, green flagellates
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