| Autor: |
Ehtesham E; Department of Chemistry, University of Otago , P.O. Box 56, Dunedin, New Zealand., Hayman AR, McComb KA, Van Hale R, Frew RD |
| Jazyk: |
angličtina |
| Zdroj: |
Journal of agricultural and food chemistry [J Agric Food Chem] 2013 Sep 18; Vol. 61 (37), pp. 8914-23. Date of Electronic Publication: 2013 Sep 04. |
| DOI: |
10.1021/jf4024883 |
| Abstrakt: |
The aim of this study was to investigate the correlation of δ²H and δ¹³C of bulk milk powder and milk powder fatty acids to their production region. A total of 46 milk powder samples from across New Zealand were collected and analyzed. Principal component analysis (PCA) showed that the δ²H and δ¹³C of four fatty acids (C4:0, C14:0, C16:0, C18:1) and bulk milk powder were found to be correlated with regional production area. Linear discriminant analysis (LDA) models were prepared using different combinations of bulk and fatty acid δ²H and δ¹³C. All models were effective in discriminating samples from the North and South Islands. The LDA model using just fatty acid δ²H and δ¹³C provided the best separation. Therefore, the isotopic composition of the aforementioned fatty acids can be utilized as a good biomarker in milk powder that conveys reliable isotopic information to track milk powders to their regional origin. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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