Journal ArticleDOI
Raman Spectroscopy as a Rapid Tool for Quantitative Analysis of Butter Adulterated with Margarine
Aleksandar Nedeljkovic,Petra Rösch,Jürgen Popp,Jürgen Popp,Jelena Miocinovic,Mira Radovanović,Predrag Pudja +6 more
TLDR
In this article, the authors used Raman spectroscopy coupled with partial least squares regression to quantify butter adulteration with margarine and showed that the intensity of these peaks decreases with a decreasing margarine content.Abstract:
Butter adulteration with margarine continues to be a threat for consumers; therefore, new rapid analytical tools are needed for quality control/quality assurance purposes. In this study, we used Raman spectroscopy coupled with partial least squares regression to quantify butter adulteration with margarine. The main difference between Raman spectra of butter and margarine comes from two bands associated to C=C double bond (1656 and 1268 cm−1) and the band associated to phospholipids’ choline group (973 cm−1). The intensity of these peaks decreases with a decreasing margarine content. The coefficient of determination (R
2 = 0.994) and root-mean-square error of prediction (RMSEP = 2.754) display very good overall model performance. The sample preparation procedure that we employed was notably simplified compared to previous studies. This confirms that Raman spectroscopy can be effectively applied to quantify butter adulteration with margarine and further indicates that simplification of the analysis procedure is possible. These results could aid the efforts for implementation of this technique in routine rapid quality analysis of butter.read more
Citations
More filters
Journal ArticleDOI
Fraud in animal origin food products: advances in emerging spectroscopic detection methods over the past five years
Abdo Hassoun,Ingrid Måge,Walter F. Schmidt,Havva Tümay Temiz,Li Li,Hae-Yeong Kim,Heidi Nilsen,Alessandra Biancolillo,Abderrahmane Aït-Kaddour,Marek Sikorski,Ewa Sikorska,Silvia Grassi,Daniel Cozzolino +12 more
TL;DR: The aim of the present manuscript is to review the state-of-the-art research advances since 2015 regarding the use of analytical methods applied to detect fraud in food products of animal origin, with particular attention paid to spectroscopic measurements coupled with chemometric analysis.
Journal ArticleDOI
Detection of l-Cysteine in wheat flour by Raman microspectroscopy combined chemometrics of HCA and PCA.
TL;DR: For the first time, a new, rapid, effective, non-destructive and cost-effective method was developed for detection of l-Cysteine in wheat flour using Raman microscopy.
Journal ArticleDOI
Detection of adulteration in food based on nondestructive analysis techniques: a review.
TL;DR: The principles, advantages and disadvantages of the nondestructive analysis techniques are introduced and the applications of these techniques in food adulteration screen in recent years are reviewed.
Journal ArticleDOI
Through-packaging analysis of butter adulteration using line-scan spatially offset Raman spectroscopy.
TL;DR: The results revealed that, while conventional backscattering Raman spectroscopy cannot penetrate the packaging, thus preventing its application to the quality analysis of packaged food, SORS analysis yielded excellent qualitative and quantitative analyses of butter samples.
Journal ArticleDOI
Detection of lard in butter using Raman spectroscopy combined with chemometrics
TL;DR: Raman spectroscopy coupled chemometrics was employed effectively for quantification of lard fat in butter fat samples with easy, robust, effective, low-cost and reliable application in the quality control of butter.
References
More filters
Journal Article
R: A language and environment for statistical computing.
TL;DR: Copyright (©) 1999–2012 R Foundation for Statistical Computing; permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and permission notice are preserved on all copies.
Book
Official Methods of Analysis of AOAC International
William Horwitz,George W Latimer +1 more
TL;DR: In this article, the authors present official methods of analysis of AOAC International, official methods for analysis of aOAC-related project, and a set of methods for the analysis of their work.
Book
Infrared and Raman Characteristic Group Frequencies: Tables and Charts
TL;DR: This new edition of this highly successful manual is not only a revised text but has been extended to meet the interpretive needs of Raman users as well as those working in the IR region, creating a uniquely practical, comprehensive and detailed source for spectral interpretation.
Journal ArticleDOI
The pls Package: Principal Component and Partial Least Squares Regression in R
Bjørn-Helge Mevik,Ron Wehrens +1 more
TL;DR: The pls package implements principal component regression (PCR) and partial least squares regression (PLSR) in R and is freely available from the Comprehensive R Archive Network (CRAN), licensed under the GNU General Public License (GPL).
Book
Dairy chemistry and biochemistry
TL;DR: The most comprehensive introductory text on the chemistry and biochemistry of milk is as discussed by the authors, which provides a comprehensive description of the principal constituents of milk (water, lipids, proteins, lactose, salts, vitamins, indigenous enzymes).