Data di Pubblicazione:
2019
Citazione:
Fatty Acid Profile in Goat Milk from High- and Low-Input Conventional and Organic Systems / A. Lopez, M. Vasconi, V.M. Moretti, F. Bellagamba. - In: ANIMALS. - ISSN 2076-2615. - 9:7(2019 Jul 17), pp. 452.1-452.14. [10.3390/ani9070452]
Abstract:
According to the knowledge that the composition in fatty acids of milk is related to the
production system, we determined the fatty acid composition of goat milk yielded in three different
Italian farms. Two low-input system farms; one organic (LI-O) and one conventional (LI-C), and one
high-input system conventional farm (HI-C) were involved in the study. Significant differences were
detected among the different groups considering the fatty acid pattern of milk. Fatty acids (FA)
strictly related to the rearing system, such as odd and branched chain fatty acids (OBCFA), linoleic
acid (LA, 18:2 n6), alpha-linolenic acid (ALA, 18:3 n3), elaidic acid (EA, 18:1 n9), total n6 and total n3
FA, were identified as the most significant factors in the characterization of samples coming from lowor high-input systems. OBCFA amounts were found to be higher (p < 0.05) in the LI-O milk (4.7%),
followed by the LI-C milk (4.5%) and then by the HI-C milk (3.4%). The same trend was observed
for Σn3 FAs, mainly represented by ALA (0.72%–0.81% in LI-O systems and 0.41% in HI-system),
and the opposite for Σn6 FAs, principally represented by LA (2.0%–2.6% in LI-systems and 3.1% in
HI-system). A significant (p < 0.01) discrimination among samples clusters coming from the different
systems was allowed by the principal component analysis (PCA).
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
goat milk; OBCFA; fatty acids; livestock production system; low-input; high-input
Elenco autori:
A. Lopez, M. Vasconi, V.M. Moretti, F. Bellagamba
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