Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 59, Issue 13, Pages 7360-7367Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jf202057x
Keywords
dairy milk; coagulation properties; citrate; choline; nuclear magnetic resonance spectroscopy; lactose
Funding
- Danish Strategic Research Council
- Danish Research Council FTP
- Arla Foods amba
- Danish Cattle Organisation
- Ministry of Food, Agriculture and Fisheries (the Innovation Law), Denmark
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The aim of the present study was to investigate the relationship between the metabolite profile of milk and important technological properties by using nuclear magnetic resonance (NMR)-based metabolomics. The metabolomics approach was introduced for the metabolic profiling of a set of milk samples from two dairy breeds representing a wide span in coagulation properties. The milk metabolite profiles obtained by proton and carbon NMR spectroscopy could be correlated to breed and, more interestingly, also with the coagulation profile, as established by traditional methods by using principal component analysis (PCA). The metabolites responsible for the separation into breed could mainly be ascribed to carnitine and lactose, whereas the metabolites varying in the samples with respect to coagulation properties included citrate, choline, carnitine, and lactose. The results found in the present study demonstrated a promising potential of NMR-based metabolomics for a rapid analysis and classification of milk samples, both of which are useful for the dairy industry.
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