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Monitoring the presence of lard in virgin coconut oil (VCO) using Fourier transform infrared (FTIR) spectroscopy for halal authentication study


Citation

Rohman, Abdul and Che Man, Yaakob and Ismail, Amin and Hashim, Puziah (2009) Monitoring the presence of lard in virgin coconut oil (VCO) using Fourier transform infrared (FTIR) spectroscopy for halal authentication study. In: 3rd IMT-GT International Symposium on Halal science and Management 2009, 21-22 Dec. 2009, KLIA Sepang, Malaysia. (pp. 67-71).

Abstract

This study highlights the application of Fourier transform infrared (FTIR) spectroscopy combined with chemometrics to analyze the presence of lard in virgin coconut oil (VCO). The spectral bands associated with VCO, lard, and its blends of VCO and lard with different concentrations of lard were scanned, interpreted, and identified.Discriminant analysis and partial least square (PLS) were used for qualitative and quantitative analyses, respectively. In order to check the validity of PLS model, the calibration model obtained was cross validated using “leave one out” method. The results showed that PLS able to predict the lard contents in VCO with equation y = 0.999x + 0.006, for the relation between actual value of lard (x) and FTIR predicted value (y) with coefficient of determination (R2) of 0.999 at frequency regions of 1120 – 950 cm-1.Furthermore, DA was successfully exploited for classification of VCO and that adulterated with lard.


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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Halal Products Research Institute
Publisher: Halal Products Research Institute, Universiti Putra Malaysia
Keywords: Lard; Virgin coconut oil; FTIR spectroscopy; Partial least square; Discriminant analysis
Depositing User: Samsida Samsudin
Date Deposited: 29 Apr 2013 02:31
Last Modified: 03 Aug 2018 01:55
URI: http://psasir.upm.edu.my/id/eprint/19933
Statistic Details: View Download Statistic

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