Irnawati, Irnawati and Riyanto, S. and Rohman, A. (2021) Adulteration of Gabus (Channa striata) fish oil with corn oil and palm oil: The use of FTIR spectra and chemometrics. Food Research, 5 (2). 184 – 190. ISSN 25502166
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Abstract
The adulteration practice in fats and oils industry can be in the form of addition or substitution high quality oils such as Gabus Fish oil (GFO) with lower price oils. This research highlighted the application of FTIR spectroscopy combined with multivariate calibrations and discriminant analysis (DA) for quantitative analysis and classification of oil adulterants of palm oil (PO) and corn oil (CO) in GFO. The methods involved preparation of training/calibration and validation samples, scanning of samples using FTIR spectrophotometer using attenuated total reflectance, development of calibration and validation models for quantitative analysis of oil adulterants assisted with multivariate calibrations and classification between genuine GFO and GFO adulterated with PO and CO using discriminant analysis. The quantitative analysis of PO in ternary mixtures with CO as an adulterant in GFO was carried out using first derivative spectra at wavenumbers of 3200-600 cm-1 assisted with partial least square (PLS), while quantitative analysis of CO in ternary mixture with PO and GFO was performed using first derivative spectra at wavenumbers region of 3200-2700 cm-1 assisted with principle component regression (PCR). The R2 values for the correlation between actual and predicted values of PO and CO in ternary mixtures either in calibration or prediction samples were of > 0.97 with low errors. In addition, DA using the same wavenumbers region as used in the quantitative analysis could classify or discriminate genuine GFO and GFO mixed/adulterated with PO and CO with an accuracy level of 100. FTIR spectroscopy using suitable wavenumbers region combined with PLS, PCR and DA could be proposed as analytical tools for quantification and classification of oil adulterants in GFO. © 2020 The Authors. Published by Rynnye Lyan Resources.
Item Type: | Article |
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Additional Information: | Cited by: 9; All Open Access, Gold Open Access |
Uncontrolled Keywords: | chemical compound; corn oil; deuterated triglycine sulfate; fish oil; palm oil; unclassified drug; Article; calibration; Channa striatus; chemometrics; discriminant analysis; fish oil adulteration; food processing; Fourier transform infrared spectroscopy; gas chromatography; least square analysis; measurement accuracy; multivariate analysis; nonhuman; partial least squares regression; principal component analysis; principle component regression; quantitative analysis; regression analysis; validation process |
Subjects: | R Medicine > RS Pharmacy and materia medica |
Divisions: | Faculty of Pharmacy |
Depositing User: | Sri JUNANDI |
Date Deposited: | 06 Sep 2024 02:55 |
Last Modified: | 06 Sep 2024 02:55 |
URI: | https://ir.lib.ugm.ac.id/id/eprint/5745 |