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Characterization of canola oil extracted by different methods using fluorescence spectroscopy
The potential of fluorescence spectroscopy has been utilized for the characterization of three types of canola oil samples: the first type was obtained by dissolving its seeds in hexane solvent, the second by cold press method, and the third from eight commercial brands. Fluorescence spectra from al...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6296546/ https://www.ncbi.nlm.nih.gov/pubmed/30557357 http://dx.doi.org/10.1371/journal.pone.0208640 |
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author | Saleem, M. Ahmad, Naveed |
author_facet | Saleem, M. Ahmad, Naveed |
author_sort | Saleem, M. |
collection | PubMed |
description | The potential of fluorescence spectroscopy has been utilized for the characterization of three types of canola oil samples: the first type was obtained by dissolving its seeds in hexane solvent, the second by cold press method, and the third from eight commercial brands. Fluorescence spectra from all samples have been acquired by using excitation wavelengths from 280 to 420 nm with step of 10 nm to investigate their valuable ingredients. The emission bands at 375, 525 and 673 nm that represent vitamin E/beta-carotene and chlorophyll, are present only in canola oil samples extracted by chemical and cold press methods and absolutely absent from all commercial brands. The emission band at 440 nm appearing only in the commercial oil brands, is assigned to oxidized products of isomers of vitamin E and fatty acids. In addition, the effect of temperature on the canola oil extracted by cold press method has been investigated which showed that up to 180 (o)C it does not lose much of its natural molecular composition. However, it showed a trend of thermal oxidation with rise of temperature. |
format | Online Article Text |
id | pubmed-6296546 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-62965462018-12-28 Characterization of canola oil extracted by different methods using fluorescence spectroscopy Saleem, M. Ahmad, Naveed PLoS One Research Article The potential of fluorescence spectroscopy has been utilized for the characterization of three types of canola oil samples: the first type was obtained by dissolving its seeds in hexane solvent, the second by cold press method, and the third from eight commercial brands. Fluorescence spectra from all samples have been acquired by using excitation wavelengths from 280 to 420 nm with step of 10 nm to investigate their valuable ingredients. The emission bands at 375, 525 and 673 nm that represent vitamin E/beta-carotene and chlorophyll, are present only in canola oil samples extracted by chemical and cold press methods and absolutely absent from all commercial brands. The emission band at 440 nm appearing only in the commercial oil brands, is assigned to oxidized products of isomers of vitamin E and fatty acids. In addition, the effect of temperature on the canola oil extracted by cold press method has been investigated which showed that up to 180 (o)C it does not lose much of its natural molecular composition. However, it showed a trend of thermal oxidation with rise of temperature. Public Library of Science 2018-12-17 /pmc/articles/PMC6296546/ /pubmed/30557357 http://dx.doi.org/10.1371/journal.pone.0208640 Text en © 2018 Saleem, Ahmad http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Saleem, M. Ahmad, Naveed Characterization of canola oil extracted by different methods using fluorescence spectroscopy |
title | Characterization of canola oil extracted by different methods using fluorescence spectroscopy |
title_full | Characterization of canola oil extracted by different methods using fluorescence spectroscopy |
title_fullStr | Characterization of canola oil extracted by different methods using fluorescence spectroscopy |
title_full_unstemmed | Characterization of canola oil extracted by different methods using fluorescence spectroscopy |
title_short | Characterization of canola oil extracted by different methods using fluorescence spectroscopy |
title_sort | characterization of canola oil extracted by different methods using fluorescence spectroscopy |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6296546/ https://www.ncbi.nlm.nih.gov/pubmed/30557357 http://dx.doi.org/10.1371/journal.pone.0208640 |
work_keys_str_mv | AT saleemm characterizationofcanolaoilextractedbydifferentmethodsusingfluorescencespectroscopy AT ahmadnaveed characterizationofcanolaoilextractedbydifferentmethodsusingfluorescencespectroscopy |