FTIR-ATR spectroscopy based metabolite fingerprinting as a direct determination of butter adulterated with lard
Adulteration of butter with cheaper animal fats, such as lard, has become an issue in recent years. A simple and rapid analytical method of attenuated total reflectance in Fourier transform infrared spectroscopy was developed in order to determine the lard content in butter. The multivariate calib...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor and Francis
2015
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/41260/ http://irep.iium.edu.my/41260/ http://irep.iium.edu.my/41260/ http://irep.iium.edu.my/41260/1/FTIR-ATR-Spectroscopy-Based-Metabolite-Fingerprinting-as-A-Direct-Determination-of-Butter-Adulterated-With-Lard_%281%29.pdf |
| Summary: | Adulteration of butter with cheaper animal fats, such as lard, has become an issue in recent years. A simple
and rapid analytical method of attenuated total reflectance in Fourier transform infrared spectroscopy
was developed in order to determine the lard content in butter. The multivariate calibration of partial least
square model for the prediction of adulterant was developed for quantitative measurement. The model
yielded the highest regression with the correlation coefficient (R2) = 0.999, its lowest root mean square
error estimation = 0.0947, and its root mean square error prediction = 0.0687, respectively. Cross validation
testing evaluates the predictive power of the model. Partial least square model to be effective as
their intercept of R2Y and Q2Y were 0.08 and –0.34, respectively |
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