Rapid detection of adulteration of milks from different species using Fourier Transform Infrared Spectroscopy (FTIR)

The aim of the studies reported in the Research Communication was to develop a rapid spectroscopic technique as an alternative method for the classification and discrimination of milk sources by Fourier transform infrared spectroscopy (FTIR). Cow, sheep and water buffalo milk samples were collected...

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Bibliographic Details
Published in:Journal of dairy research 2018-05, Vol.85 (2), p.222-225
Main Authors: Cirak, Olgun, Icyer, N. Cihat, Durak, M. Zeki
Format: Article
Language:English
Subjects:
Animals
Binary mixtures
Buffaloes
Cattle
Cheese
Classification
Cluster analysis
Cow's milk
Dairy products
Female
Food
Food Contamination - analysis
Fourier transforms
Infrared spectroscopy
Methods
Milk
Milk - chemistry
Milk - classification
Milk Proteins - analysis
Principal Component Analysis
Principal components analysis
Proteins
Sheep
Species
Species Specificity
Spectral bands
Spectroscopy
Spectroscopy, Fourier Transform Infrared - veterinary
Spectrum analysis
Studies
Turkey
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Summary:The aim of the studies reported in the Research Communication was to develop a rapid spectroscopic technique as an alternative method for the classification and discrimination of milk sources by Fourier transform infrared spectroscopy (FTIR). Cow, sheep and water buffalo milk samples were collected from various local milk producers in Istanbul, Turkey. In addition, various brands of packaged milk were purchased locally. Spectrums were obtained according to milk species origin and binary mixtures prepared in increments of 10% (10, 20, 30, 40, 50, 60, 70, 80 and 90%) for each sample analysed in FTIR spectroscopy. A successful milk species (cow, sheep, and water buffalo) discrimination and classification were achieved utilising Hierarchical cluster and principle component analyses (PCA) on the basis of Euclidean distance and Ward's algorithm. Amide-I (1700–1600/cm) and Amide-II (1565–1520/cm) spectral bands were used in the chemometric method. The results of the study indicated that adulteration of milk samples can be quantitatively detected by the FTIR technique in a short time with high accuracy. In conclusion, this method could be used as a new alternative technique for routine analysis in authenticity control of milk species origin.
ISSN:0022-0299
1469-7629
DOI:10.1017/S0022029918000201