Solvent-free spectroscopic method for high-throughput, quantitative screening of fatty acids in yeast biomass
Abstract
Sustainable biofuels and bioproducts technologies are being developed by fermentation of sugars present and released from pretreated cellulosic biomass to lipids using oleaginous yeasts. Detailed analytical characterization of lipid content through cultivation under different scenarios not only is a bottleneck that slows down development of improved strains and processes, this process also creates significant chemical waste. Since lipids exhibit a dominant, distinct, and unique fingerprint in the NIR spectrum, the use of multivariate linear regression of respective wavelengths can be used for the prediction of intracellular lipid content present in the yeast biomass. In this work, we present data on the multivariate quantitative correlation of NIR spectra with measured lipid content in different oleaginous yeast strains. This work is the first demonstration of the rapid, non-destructive, lipid quantification on as little as 10 mg of yeast biomass in a 96-well format, preventing significant chemical pollution by applying a real-time monitoring process. We demonstrate a distinct correlation of lipid content with the accumulation of select fatty acids of the lipids for 5 different yeast species, among which, for S. cerevisiae and L. starkeyi, in-depth calibration curves were developed from 65 and 154 unique samples, respectively. Laslty, we demonstrate that NIR spectramore »
- Authors:
-
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Publication Date:
- Research Org.:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Sustainable Transportation Office. Bioenergy Technologies Office (BETO)
- OSTI Identifier:
- 1487324
- Alternate Identifier(s):
- OSTI ID: 1484395
- Report Number(s):
- NREL/JA-5100-72973
Journal ID: ISSN 1759-9660; AMNECT
- Grant/Contract Number:
- AC36-08GO28308
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Analytical Methods
- Additional Journal Information:
- Journal Volume: 11; Journal Issue: 1; Journal ID: ISSN 1759-9660
- Publisher:
- Royal Society of Chemistry
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 09 BIOMASS FUELS; cellulosic biomass; NIR spectrum; yeast strains; lipid quantification
Citation Formats
Laurens, Lieve M. L., Knoshaug, Eric P., Rohrer, Holly, Van Wychen, Stefanie, Dowe, Nancy, and Zhang, Min. Solvent-free spectroscopic method for high-throughput, quantitative screening of fatty acids in yeast biomass. United States: N. p., 2018.
Web. doi:10.1039/C8AY02416B.
Laurens, Lieve M. L., Knoshaug, Eric P., Rohrer, Holly, Van Wychen, Stefanie, Dowe, Nancy, & Zhang, Min. Solvent-free spectroscopic method for high-throughput, quantitative screening of fatty acids in yeast biomass. United States. https://doi.org/10.1039/C8AY02416B
Laurens, Lieve M. L., Knoshaug, Eric P., Rohrer, Holly, Van Wychen, Stefanie, Dowe, Nancy, and Zhang, Min. Mon .
"Solvent-free spectroscopic method for high-throughput, quantitative screening of fatty acids in yeast biomass". United States. https://doi.org/10.1039/C8AY02416B. https://www.osti.gov/servlets/purl/1487324.
@article{osti_1487324,
title = {Solvent-free spectroscopic method for high-throughput, quantitative screening of fatty acids in yeast biomass},
author = {Laurens, Lieve M. L. and Knoshaug, Eric P. and Rohrer, Holly and Van Wychen, Stefanie and Dowe, Nancy and Zhang, Min},
abstractNote = {Sustainable biofuels and bioproducts technologies are being developed by fermentation of sugars present and released from pretreated cellulosic biomass to lipids using oleaginous yeasts. Detailed analytical characterization of lipid content through cultivation under different scenarios not only is a bottleneck that slows down development of improved strains and processes, this process also creates significant chemical waste. Since lipids exhibit a dominant, distinct, and unique fingerprint in the NIR spectrum, the use of multivariate linear regression of respective wavelengths can be used for the prediction of intracellular lipid content present in the yeast biomass. In this work, we present data on the multivariate quantitative correlation of NIR spectra with measured lipid content in different oleaginous yeast strains. This work is the first demonstration of the rapid, non-destructive, lipid quantification on as little as 10 mg of yeast biomass in a 96-well format, preventing significant chemical pollution by applying a real-time monitoring process. We demonstrate a distinct correlation of lipid content with the accumulation of select fatty acids of the lipids for 5 different yeast species, among which, for S. cerevisiae and L. starkeyi, in-depth calibration curves were developed from 65 and 154 unique samples, respectively. Laslty, we demonstrate that NIR spectra can be used to accurately predict intracellular lipid content using multivariate linear regression analysis in a manner of minutes, avoiding the need for lengthy chemical analyses that are resource intensive.},
doi = {10.1039/C8AY02416B},
journal = {Analytical Methods},
number = 1,
volume = 11,
place = {United States},
year = {Mon Nov 26 00:00:00 EST 2018},
month = {Mon Nov 26 00:00:00 EST 2018}
}
Web of Science
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