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Attenuated Total Reflectance-Fourier Transform Infrared Spectroscopy Coupled with Multivariate Analysis for Measurement of Acesulfame-K in Diet Foods

Fourier transform infrared (FTIR) spectroscopy was investigated as a method for analysis of acesulfame-K content after a simple extraction procedure for certain commercial diet food samples. Partial least squares (PLS) models were developed for prediction of acesulfame-K using select spectral ranges...

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Bibliographic Details
Published in:Journal of food science 2008-06, Vol.73 (5), p.C426-C431
Main Authors: Shim, J.Y, Cho, I.K, Khurana, H.K, Li, Q.X, Jun, S
Format: Article
Language:English
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Summary:Fourier transform infrared (FTIR) spectroscopy was investigated as a method for analysis of acesulfame-K content after a simple extraction procedure for certain commercial diet food samples. Partial least squares (PLS) models were developed for prediction of acesulfame-K using select spectral ranges on the basis of relevant IR absorption bands associated with acesulfame-K. The acesulfame-K content of test food samples was predicted accurately in the fingerprint region between 1100 and 1300 cm⁻¹ with a maximum prediction error of 9.82% when compared with conventional HPLC method. The PLS was found to be a consistently better predictor when both PLS and principal component regression (PCR) analyses were used for quantification of acesulfame-K. The developed procedure was further validated by comparing with HPLC results as well as recovery studies. As a quick tool, the method developed is expected to be used for routine estimation of acesulfame-K in commercial products.
ISSN:0022-1147
1750-3841
DOI:10.1111/j.1750-3841.2008.00751.x