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Correlation of Geographical Location with Stable Isotope Values of Hydrogen and Carbon of Fatty Acids from New Zealand Milk and Bulk Milk Powder

Ehtesham, Emad LU ; Hayman, Alan R. ; McComb, Kiri A. ; Van Hale, Robert and Frew, Russell D. (2013) In Journal of Agricultural and Food Chemistry 61. p.8914-8923
Abstract
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... (More)
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. (Less)
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author
; ; ; and
publishing date
type
Contribution to journal
publication status
published
subject
keywords
stable isotope, fatty acids, milk, water, IRMS, biomarker
in
Journal of Agricultural and Food Chemistry
volume
61
pages
8914 - 8923
publisher
The American Chemical Society (ACS)
external identifiers
  • scopus:84884490144
ISSN
0021-8561
DOI
10.1021/jf4024883
language
English
LU publication?
no
additional info
37
id
b64745c2-9996-4f77-8013-a9cb314ac23d (old id 4729286)
date added to LUP
2016-04-04 07:40:50
date last changed
2022-04-15 19:15:05
@article{b64745c2-9996-4f77-8013-a9cb314ac23d,
  abstract     = {{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.}},
  author       = {{Ehtesham, Emad and Hayman, Alan R. and McComb, Kiri A. and Van Hale, Robert and Frew, Russell D.}},
  issn         = {{0021-8561}},
  keywords     = {{stable isotope; fatty acids; milk; water; IRMS; biomarker}},
  language     = {{eng}},
  pages        = {{8914--8923}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{Journal of Agricultural and Food Chemistry}},
  title        = {{Correlation of Geographical Location with Stable Isotope Values of Hydrogen and Carbon of Fatty Acids from New Zealand Milk and Bulk Milk Powder}},
  url          = {{http://dx.doi.org/10.1021/jf4024883}},
  doi          = {{10.1021/jf4024883}},
  volume       = {{61}},
  year         = {{2013}},
}