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Open AccessArticle

NMR Lipid Profile of Milk from Alpine Goats with Supplemented Hempseed and Linseed Diets

1
CNR, Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”-SCITEC, via A. Corti, 12; 20133 Milano Italy
2
University of Cagliari, Department of Life and Environmental Sciences, via Ospedale 72, 09124, Cagliari, Italy
*
Author to whom correspondence should be addressed.
These two authors contributed equally to this work.
Molecules 2020, 25(7), 1491; https://doi.org/10.3390/molecules25071491 (registering DOI)
Received: 26 February 2020 / Revised: 18 March 2020 / Accepted: 24 March 2020 / Published: 25 March 2020
(This article belongs to the Special Issue Application of NMR Spectroscopy to Nutraceuticals Characterization)
The supplementation of goat diets with natural products to obtain milk with nutraceutical components is a common practice. In these last years, the influence of supplementation of specifically designed diets has been studied with different analytical tools in order to explore possible beneficial effects in human consumption of animal milk and milk-derived products. In this study, the lipid fraction of milk from Alpine goats undergoing different dietary regimens was studied by 1H-NMR spectroscopy. Alpine goats were fed with linseed or hempseed supplements, and after 14 weeks of treatment, milk was collected and analyzed. Results showed that feeding diets supplemented with seeds positively affected the fatty acid composition with a pronounced increase in unsaturated fatty acids for both diets compared to a control diet. Specifically, linolenic acid content was more than doubled for linseed diet compared with the hempseed and control groups, while linoleic acid greatly increased only upon hempseed supplementation. However, a number of conjugated linoleic acid (CLA) isomers and higher levels of fatty acids with trans configuration were found in supplemented diets, particularly in the linseed diet.
Keywords: hempseed; linseed; goat’s milk; NMR spectroscopy; supplemented diets; fatty acids; rumenic acid. hempseed; linseed; goat’s milk; NMR spectroscopy; supplemented diets; fatty acids; rumenic acid.
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MDPI and ACS Style

Boccia, A.C.; Cusano, E.; Scano, P.; Consonni, R. NMR Lipid Profile of Milk from Alpine Goats with Supplemented Hempseed and Linseed Diets. Molecules 2020, 25, 1491.

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