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Front-Face Fluorescence Spectroscopy as a Rapid and Non-Destructive Tool for Differentiating Between Sicilo–Sarde and Comisana Ewe’s Milk During Lactation Period: A Preliminary Study

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Abstract

The objective of this study was to assess the potential of front-face fluorescence spectroscopy for differentiating between two genotypes (Comisana and Sicilo–Sarde) of ewe’s milk collected during lactation period. Physico-chemical analyses and fluorescence spectra were performed on milk samples during the first 15 weeks of lactation period. Regarding fluorescence spectra, aromatic amino acids and nucleic acids (AAA+NA), tryptophan, and vitamin A were recorded on milk samples after excitation set at 250, 290, and 322 nm, respectively. Emission spectra of vitamin A were scanned after emission set at 410 nm. Among the investigated intrinsic probes, only the principal component analysis (PCA) performed on AAA+NA allowed a good discrimination between milks produced from Comisana and those collected from Sicilo–Sarde ewes. Also, the PCA carried out on the physico-chemical parameters did not allow any discrimination between milk samples according to their genotypes. It can be concluded that emission spectra of AAA+NA could be considered as fingerprints allowing a good identification of milk samples according to ewe’s genotypes.

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Authors and Affiliations

  1. Department of Animal Production, Higher Institute of Agriculture of Mateur, Route de Tabarka, 7030, Mateur, Tunisia

    Fethi Zaïdi, Hamadi Rouissi & Mounir Kammoun

  2. Department of Biosystems, K.U. Leuven, Kasteelpark Arenberg 30, 3001, Leuven, Belgium

    Sami Dridi & Josse De Baerdemaeker

  3. Typicité des Produits Alimentaires, ENITA de Clermont Ferrand, BP 35, 63370, Lempdes, France

    Romdhane Karoui

Authors
  1. Fethi Zaïdi
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  2. Hamadi Rouissi
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  3. Sami Dridi
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  4. Mounir Kammoun
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  5. Josse De Baerdemaeker
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  6. Romdhane Karoui
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Correspondence to Romdhane Karoui.

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Zaïdi, F., Rouissi, H., Dridi, S. et al. Front-Face Fluorescence Spectroscopy as a Rapid and Non-Destructive Tool for Differentiating Between Sicilo–Sarde and Comisana Ewe’s Milk During Lactation Period: A Preliminary Study. Food Bioprocess Technol 1, 143–151 (2008). https://doi.org/10.1007/s11947-007-0028-8

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  • DOI: https://doi.org/10.1007/s11947-007-0028-8

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