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Detection of butter adulteration with lard using differential scanning calorimetry

Ahmad Fadzlillah, Nurrulhidayah and Rosman, Arieff Salleh and Abdul Rohman, and Ismail, Amin and Mustafa, Shuhaimi and Khatib, Alfi (2015) Detection of butter adulteration with lard using differential scanning calorimetry. International Food Research Journal, 22 (2). pp. 832-839. ISSN 1985-4668; ESSN: 2231-7546

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Official URL: http://www.ifrj.upm.edu.my/22%20%2802%29%202015/%2...

Abstract

Differential scanning calorimetry (DSC) is developed and used for detection of butter adulteration with lard. Butter has the similar characteristics to lard makes lard a desirable adulterant in butter. DSC provides unique thermal profiling for lard and butter. In the heating thermogram of the mixture, there was one major endothermic peak (peak A) with a smaller shoulder peak embedded in the major peak that gradually smoothed out to the major peak as the lard percent increased. In the cooling thermogram, there were one minor peak (peak B) and two major exothermic peaks, peak C which increased as lard percent increased and peak D which decreased in size as the lard percent increased. From Stepwise Multiple Linear Regression (SMLR) analysis, two independent variables were found to be able to predict lard percent adulteration in butter with R2 (adjusted) of 95.82. The SMLR equation of lard percent adulteration in butter is 293.1 - 11.36 (Te A) - 2.17 (Tr D); where Te A is the endset of peak A and Tr D is the range of thermal transition for peak D. These parameters can serve as a good measurement parameter in detecting lard adulteration in butter. DSC is a very useful means for halal screening technique to enhance the authenticity of Halal process.

Item Type:Article
Keyword:Adulteration; Butter; Differential scanning calorimetry; Halal; Lard
Faculty or Institute:Faculty of Medicine and Health Science
Halal Products Research Institute
Publisher:Faculty of Food Science and Technology, Universiti Putra Malaysia
ID Code:32815
Deposited By: Nabilah Mustapa
Deposited On:27 Jan 2016 09:19
Last Modified:27 Jan 2016 09:19

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