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A new method for determining of gossypol in cottonseed oil by FTIR spectroscop

A new method was developed to determine the gossypol content in cottonseed oil using FTIR spectroscopy with a NaCl transmission cell. The wavelengths used were selected by spiking clean cottonseed oil to gossypol concentrations of 0–5% and noting the regions of maximal absorbance. Transmittance val...

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Main Authors: Mirghani, Mohamed Elwathig Saeed, Che Man, Yakoob
Format: Article
Language:English
Published: Springer Berlin 2003
Subjects:
T Technology (General)
Online Access:http://irep.iium.edu.my/7223/1/Elwathig_%28Gossypol%29.pdf
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spelling my.iium.irep.72232012-05-07T06:14:10Z http://irep.iium.edu.my/7223/ A new method for determining of gossypol in cottonseed oil by FTIR spectroscop Mirghani, Mohamed Elwathig Saeed Che Man, Yakoob T Technology (General) A new method was developed to determine the gossypol content in cottonseed oil using FTIR spectroscopy with a NaCl transmission cell. The wavelengths used were selected by spiking clean cottonseed oil to gossypol concentrations of 0–5% and noting the regions of maximal absorbance. Transmittance values from the wavelength regions 3600–2520 and 1900–800 cm−1 and a partial least squares (PLS) method were used to derive FTIR spectroscopic calibration models for crude cottonseed, semirefined cottonseed, and gossypol-spiked cottonseed oils. The coefficients of determination (R2) for the models were computed by comparing the results from the FTIR spectroscopy against those obtained by AOCS method Ba 8-78. The R2 were 0.9511, 0.9116, and 0.9363 for crude cottonseed, semirefined cottonseed, and gossypol-spiked cottonseed oils, respectively. The SE of calibration were 0.042, 0.009, and 0.060, respectively. The calibration models were cross-validated within the same set of oil samples. The SD of the difference for repeatability and accuracy of the FTIR method were better than those for the chemical method. With its speed (ca. 2 min) and ease of data manipulation, FTIR spectroscopy is a useful alternative to standard wet chemical methods for rapid and routine determination of gossypol in process and/or quality control for cottonseed oil. Springer Berlin 2003 Article REM application/pdf en http://irep.iium.edu.my/7223/1/Elwathig_%28Gossypol%29.pdf Mirghani, Mohamed Elwathig Saeed and Che Man, Yakoob (2003) A new method for determining of gossypol in cottonseed oil by FTIR spectroscop. Journal Of The American Oil Chemists' Society, 80 (7). pp. 625-628. ISSN 0003-021X http://www.aocs.org/Journals/jaocs.cfm Paper no. J10412 in JAOCS 80, 625–628 (July 2003).
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
topic T Technology (General)
spellingShingle T Technology (General)
Mirghani, Mohamed Elwathig Saeed
Che Man, Yakoob
A new method for determining of gossypol in cottonseed oil by FTIR spectroscop
description A new method was developed to determine the gossypol content in cottonseed oil using FTIR spectroscopy with a NaCl transmission cell. The wavelengths used were selected by spiking clean cottonseed oil to gossypol concentrations of 0–5% and noting the regions of maximal absorbance. Transmittance values from the wavelength regions 3600–2520 and 1900–800 cm−1 and a partial least squares (PLS) method were used to derive FTIR spectroscopic calibration models for crude cottonseed, semirefined cottonseed, and gossypol-spiked cottonseed oils. The coefficients of determination (R2) for the models were computed by comparing the results from the FTIR spectroscopy against those obtained by AOCS method Ba 8-78. The R2 were 0.9511, 0.9116, and 0.9363 for crude cottonseed, semirefined cottonseed, and gossypol-spiked cottonseed oils, respectively. The SE of calibration were 0.042, 0.009, and 0.060, respectively. The calibration models were cross-validated within the same set of oil samples. The SD of the difference for repeatability and accuracy of the FTIR method were better than those for the chemical method. With its speed (ca. 2 min) and ease of data manipulation, FTIR spectroscopy is a useful alternative to standard wet chemical methods for rapid and routine determination of gossypol in process and/or quality control for cottonseed oil.
format Article
author Mirghani, Mohamed Elwathig Saeed
Che Man, Yakoob
author_facet Mirghani, Mohamed Elwathig Saeed
Che Man, Yakoob
author_sort Mirghani, Mohamed Elwathig Saeed
title A new method for determining of gossypol in cottonseed oil by FTIR spectroscop
title_short A new method for determining of gossypol in cottonseed oil by FTIR spectroscop
title_full A new method for determining of gossypol in cottonseed oil by FTIR spectroscop
title_fullStr A new method for determining of gossypol in cottonseed oil by FTIR spectroscop
title_full_unstemmed A new method for determining of gossypol in cottonseed oil by FTIR spectroscop
title_sort new method for determining of gossypol in cottonseed oil by ftir spectroscop
publisher Springer Berlin
publishDate 2003
url http://irep.iium.edu.my/7223/1/Elwathig_%28Gossypol%29.pdf
http://irep.iium.edu.my/7223/
http://www.aocs.org/Journals/jaocs.cfm
_version_ 1643605894698631168
score 13.211869

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