Rapid Chemometric Method for the Determination of Oleic and Linoleic Acid in Sunflower Seeds by ATR-FTIR Spectroscopy
Screening of sunflower seeds in a breeding program to produce high oleic acid varieties requires a fast, simple and accurate analytical method. Experiments were carried out to: (i) investigate the potential of attenuated total reflectance-fourier transform infrared (ATR-FTIR) spectroscopy for rapid...
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Science Faculty of Chiang Mai University
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th-cmuir.6653943832-661622019-08-21T09:18:23Z Rapid Chemometric Method for the Determination of Oleic and Linoleic Acid in Sunflower Seeds by ATR-FTIR Spectroscopy Chalermkwan Sukkasem Thitiporn Machikowa Waraporn Tanthanuch Sodchol Wonprasaid Fourier transformed infrared attenuated total reflectance PLS fatty acid composition Helianthus annuus L. Screening of sunflower seeds in a breeding program to produce high oleic acid varieties requires a fast, simple and accurate analytical method. Experiments were carried out to: (i) investigate the potential of attenuated total reflectance-fourier transform infrared (ATR-FTIR) spectroscopy for rapid determination of fatty acid in sunflower seeds; and (ii) evaluate the calibration models for determination of oleic and linoleic acid contents in sunflower seeds by ATR-FTIR. Spectral data manipulation was performed using 5 different processing treatments for monitoring the calibration models, including two pretreatments (1st and 2nd derivative), two preprocessing strategies (Multiplicative Scatter Correction (MSC), vector and min/max normalization), and spectral ranges (3050-2800 and 1800-900 cm–1). FTIR spectra combined with gas chromatography (GC) values of oleic and linoleic acid contents were used for predictive models generated by partial least square (PLS) regression. The results showed that treatments 1 and 2, the combinations of 2nd derivative with MSC or vector normalization in spectral ranges 3050-2800 and 1800-900 cm-1, presented the lowest errors and produced the highest coefficients of determination of oleic and linoleic acid prediction models. It can be concluded that the ATR-FTIR method combined with chemometric analysis provided results comparable to GC analysis but they are more rapid and simple. 2019-08-21T09:18:23Z 2019-08-21T09:18:23Z 2015 Chiang Mai Journal of Science 42, 4 (Oct 2015), 930 - 938 0125-2526 http://it.science.cmu.ac.th/ejournal/dl.php?journal_id=6247 http://cmuir.cmu.ac.th/jspui/handle/6653943832/66162 Eng Science Faculty of Chiang Mai University |
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Fourier transformed infrared attenuated total reflectance PLS fatty acid composition Helianthus annuus L. |
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Fourier transformed infrared attenuated total reflectance PLS fatty acid composition Helianthus annuus L. Chalermkwan Sukkasem Thitiporn Machikowa Waraporn Tanthanuch Sodchol Wonprasaid Rapid Chemometric Method for the Determination of Oleic and Linoleic Acid in Sunflower Seeds by ATR-FTIR Spectroscopy |
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Screening of sunflower seeds in a breeding program to produce high oleic acid varieties requires a fast, simple and accurate analytical method. Experiments were carried out to: (i) investigate the potential of attenuated total reflectance-fourier transform infrared (ATR-FTIR) spectroscopy for rapid determination of fatty acid in sunflower seeds; and (ii) evaluate the calibration models for determination of oleic and linoleic acid contents in sunflower seeds by ATR-FTIR. Spectral data manipulation was performed using 5 different processing treatments for monitoring the calibration models, including two pretreatments (1st and 2nd derivative), two preprocessing strategies (Multiplicative Scatter Correction (MSC), vector and min/max normalization), and spectral ranges (3050-2800 and 1800-900 cm–1). FTIR spectra combined with gas chromatography (GC) values of oleic and linoleic acid contents were used for predictive models generated by partial least square (PLS) regression. The results showed that treatments 1 and 2, the combinations of 2nd derivative with MSC or vector normalization in spectral ranges 3050-2800 and 1800-900 cm-1, presented the lowest errors and produced the highest coefficients of determination of oleic and linoleic acid prediction models. It can be concluded that the ATR-FTIR method combined with chemometric analysis provided results comparable to GC analysis but they are more rapid and simple. |
author |
Chalermkwan Sukkasem Thitiporn Machikowa Waraporn Tanthanuch Sodchol Wonprasaid |
author_facet |
Chalermkwan Sukkasem Thitiporn Machikowa Waraporn Tanthanuch Sodchol Wonprasaid |
author_sort |
Chalermkwan Sukkasem |
title |
Rapid Chemometric Method for the Determination of Oleic and Linoleic Acid in Sunflower Seeds by ATR-FTIR Spectroscopy |
title_short |
Rapid Chemometric Method for the Determination of Oleic and Linoleic Acid in Sunflower Seeds by ATR-FTIR Spectroscopy |
title_full |
Rapid Chemometric Method for the Determination of Oleic and Linoleic Acid in Sunflower Seeds by ATR-FTIR Spectroscopy |
title_fullStr |
Rapid Chemometric Method for the Determination of Oleic and Linoleic Acid in Sunflower Seeds by ATR-FTIR Spectroscopy |
title_full_unstemmed |
Rapid Chemometric Method for the Determination of Oleic and Linoleic Acid in Sunflower Seeds by ATR-FTIR Spectroscopy |
title_sort |
rapid chemometric method for the determination of oleic and linoleic acid in sunflower seeds by atr-ftir spectroscopy |
publisher |
Science Faculty of Chiang Mai University |
publishDate |
2019 |
url |
http://it.science.cmu.ac.th/ejournal/dl.php?journal_id=6247 http://cmuir.cmu.ac.th/jspui/handle/6653943832/66162 |
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