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Evaluation of Phytosterols in Milk and Yogurts Used as Functional Foods in Portugal

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Abstract

The early development of cardiovascular diseases, one of the major death causes in Europe, is clearly associated with high plasmatic cholesterol levels. However, it is demonstrated that the ingestion of phytosterols-enriched milk and yogurts could reduce cholesterolemia. The purpose of the present work was to assess the commercially available phytosterols-enriched milk and yogurts. As such, the available three milk and seven yogurt presentations in Portuguese market were collected during 2008 and analyzed through gas chromatography coupled with mass detection. All the analyzed milk samples were in agreement with the proportion established by the European Commission, with β-sitosterol as the more abundant phytosterol. However, and contrarily to milk, the different yogurt manufacturers had different options in the phytosterols added to the dairy foods commercialized.

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Acknowledgment

The authors are grateful to the Portuguese Foundation for Science and Technology (POCTI-SFA-8-177) for supporting this research.

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Authors and Affiliations

  1. CEF—Center for Pharmaceutical Studies, Pharmacy Faculty, University of Coimbra, Health Sciences Campus, Azinhaga de Santa Comba, 3000-548, Coimbra, Portugal

    David Saraiva, Maria da Conceição Castilho, Maria Irene Noronha da Silveira & Fernando Ramos

  2. ICAAM—Instituto de Ciências Agrárias e Ambientais Mediterrânicas, Departamento de Química, Universidade de Évora, Rua Romão Ramalho, 59, 7000-671, Évora, Portugal

    Maria do Rosário Martins

Authors
  1. David Saraiva
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  2. Maria da Conceição Castilho
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  3. Maria do Rosário Martins
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  4. Maria Irene Noronha da Silveira
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  5. Fernando Ramos
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Corresponding author

Correspondence to Fernando Ramos.

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Saraiva, D., da Conceição Castilho, M., do Rosário Martins, M. et al. Evaluation of Phytosterols in Milk and Yogurts Used as Functional Foods in Portugal. Food Anal. Methods 4, 28–34 (2011). https://doi.org/10.1007/s12161-010-9131-y

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  • DOI: https://doi.org/10.1007/s12161-010-9131-y

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