Authentication of butter from lard adulteration using high-resolution of nuclear magnetic resonance spectroscopy and high-performance liquid chromatography

Ahmad Fadzillah, Nurrulhidayah and Rohman, Abdul and Rosman, Arieff Salleh and Amin, I. and Shuhaimi, Mustafa and Mohd Yusof, Farahwahida and Othman, Rashidi and Jamaludin, Mohammad Aizat and Khatib, Alfi (2017) Authentication of butter from lard adulteration using high-resolution of nuclear magnetic resonance spectroscopy and high-performance liquid chromatography. International Journal of Food Properties, 20 (9). pp. 2147-2156. ISSN 1094-2912 E-ISSN 1532-2386

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Abstract

Food authentication is an interesting issue for all parties in the food industry, including the fats and oils industry. Some unethical players try to blend high-quality foods, such as butter, with lower ones like lard, therefore, the analytical methods capable of analyzing the adulteration practices must be developed. This study used proton nuclear magnetic resonance spectroscopy in combination with high-performance liquid chromatography for the authentication of butter from lard adulteration. The identification of triacylglycerol composition of lard as a chemical marker for halal authentication is analyzed using high-performance liquid chromatography and high resolution nuclear magnetic resonance spectroscopy. The suitability of proton nuclear magnetic resonance provides a high-performance approach for determination butter adulterated with lard in their entirety of all proton bearing components. Peaks in the region of 2.60–2.84 ppm show special characteristics only present in lard. Only lard has its own unique characteristics which only polyunsaturated fatty acids would give signals 7 at δ 2.63, that corresponded to the chemical shift of the double-allylic methylene protons. In the same way, the intensity of signal at 2.63 ppm, due to methylenic protons in a position α to two double bonds, that is to say, due to the linoleic group. Furthermore, we also correlate some signals between 1H and 13C-NMR spectra for the confirmation of signals.

Item Type:	Article (Journal)
Additional Information:	7619/59212
Uncontrolled Keywords:	Butter; Halal authentication; Lard NMR spectroscopy; Triacylglycerol composition
Subjects:	Q Science > QD Chemistry Q Science > QP Physiology T Technology > TX Home economics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	International Institute for Halal Research and Training (INHART) Kulliyyah of Architecture and Environmental Design Kulliyyah of Pharmacy > Department of Pharmaceutical Chemistry
Depositing User:	Dr rashidi othman
Date Deposited:	09 Nov 2017 11:57
Last Modified:	11 Aug 2020 10:57
URI:	http://irep.iium.edu.my/id/eprint/59212

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