The use of multi element profiling to differentiate between cowand buffalo milk |
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Authors: | Cinzia Benincasa John Lewis Giovanni Sindona Antonio Tagarelli |
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Affiliation: | 1. Dipartimento di Chimica, Università della Calabria, Via P. Bucci, Cubo 12/C, I-87030 Arcavacata di Rende (CS), Italy;2. Central Science Laboratory, Sand Hutton, York Y041 1LZ, UK |
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Abstract: | The multi element profile of milk from 12 cows and 6 water buffaloes was investigated, to establish whether dairy products derived from the two species could be distinguished. Multi-element data were obtained using ICP-MS. Following assessment against the team’s QA/QC criteria, or where the levels were below the LOD for the procedure, 16 elements (P, S, K, Ca, V, Cr, Mn, Fe, Co, Zn, Ga, Rb, Sr, Mo, Cs and Ba) were submitted for statistical analysis. Using linear discriminant analysis (LDA) it was possible to differentiate between milk from the two species, produced under identical environmental and animal husbandry conditions, on one farm. The sources of food and water available for consumption by the animals were also analysed and the results showed that there was no correlation between the elemental composition of the dietary components and the profiles observed in the milk. |
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Keywords: | Food Milk Cow Buffalo Trace elements ICP-MS Authenticity Statistical analysis |
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