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European Food Research and Technology

, Volume 245, Issue 1, pp 159–166 | Cite as

Lipolytic volatile compounds in dairy products derived from cows fed with dried olive pomace

  • Federica Castellani
  • Andrea Vitali
  • Nadia Bernardi
  • Elettra Marone
  • Lisa Grotta
  • Giuseppe MartinoEmail author
Original Paper
  • 57 Downloads

Abstract

The study was aimed at evaluating the effects of dietary supplementation with dried olive pomace in dairy cows on the development of lipolytic volatile compounds in raw milk and cheese. Twenty dairy cows, homogeneous for milk yield, parity and days in milk, were randomly assigned to a basal diet (CON) and a conventional diet integrated with dried olive pomace (DOP) as 10% of dry matter. After 60 days of treatment, raw bulk milk of CON and DOP groups was sampled and used to produce cheese that was sampled at 1, 7 and 30 days of ripening. Volatile compounds were analyzed by the SPME-GC/MS technique. Dietary treatment influenced C6, C8, C10 and C12 free fatty acids, the short-chain ethyl and methyl esters, many of ketones and γ- and δ-lactones in raw milk. Cheese showed main differences between groups after 7 days of aging. Levels of methyl decanoate and ethyl esters of even fatty acids from C4 to C14, as well as 2-heptanone, 6-dodecen-γ-lactone, octanal and some C9 secondary lipolytic catabolites such as 8-nonen-2-one, 2-nonanone and 2-nonenal were higher in DOP cheese. The γ-dodecalactone, δ-octalactone, 2-octenal and 1-hexanol were higher in the experimental cheese at 30 days of ripening. DOP dietary integration in feeding operations of dairy cows may modify the evolution of volatile compounds derived from lipolysis in milk and cheese toward moldy and peach notes. A sensory evaluation of these changes will be necessary to understand the consumer acceptability that represents an important feedback to drive dairy industry choices.

Keywords

Olive pomace Milk Cheese Lipolysis Aromatic profile 

Notes

Acknowledgements

The authors are grateful to “Cooperativa AN.SA.PE.” (L’Aquila, Italy) and Prof. Fausto Ruscitti (president of the Cooperativa AN.SA.PE.) for the helpful cooperation.

Funding

This study was supported by a grant from MIUR (Ministero dell’Istruzione, dell’Università e della Ricerca) (D. D. Prot. 1980 06/06/2014) and it was part of the project “PROmozione della Salute del consumatore: valorizzazione nutrizionale dei prodotti agroalimentari della tradizione italiana (ProS.IT) (CNT01_00230_413096)”.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Compliance with ethics requirements

This article does not contain any studies with human or animal subjects.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Federica Castellani
    • 1
  • Andrea Vitali
    • 1
  • Nadia Bernardi
    • 1
  • Elettra Marone
    • 1
  • Lisa Grotta
    • 1
  • Giuseppe Martino
    • 1
    Email author
  1. 1.Faculty of Bioscience and Technology for Food, Agriculture and EnvironmentUniversity of TeramoTeramoItaly

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