Some variation factors of freezing point in camel milk

Konuspayeva Gaukhar, Al-Gedan Mubarak M., Alzuraiq Fuad, Faye Bernard. 2023. Some variation factors of freezing point in camel milk. Animals, 13 (10):1657, 14 p.

Résumé : The freezing point degree of milk (FPD) is a classical indicator of cow milk quality. In camel milk, few references are available in the literature regarding the main factors of variation. In the present paper, two methods of FPD determination were used: the Reference method (RM) (using Cryostar) and the Express method (EM), using a milk analyzer (Milkoscan-FT1). The RM was used to determine FPD in 680 bulk raw or pasteurized camel milk samples. Regarding EM, 736 individual milk samples, 1323 bulk samples, 635 samples of pasteurized milk and 812 samples of raw milk used for cheese making were available. The variability of FPD was investigated according to month, lactation stage, milk composition, milk production and microbiological status. Correlations between methods were explored. FPD was highly correlated with most of the milk components and tended to decrease in cases of high contamination by coliforms or high total flora count. However, the weak significant correlations between the two methods indicated the necessity to specifically calibrate an automatic milk analyzer for camel milk.

Mots-clés Agrovoc : lait de chamelle, point de congélation, lait cru, lait pasteurisé, traitement des aliments, composition des aliments, qualité des aliments, analyse des produits alimentaires, composition du lait, traitement du lait

Mots-clés libres : Camel milk, Freezing point, Milk composition, Milk bacteriology, Milk processing

Classification Agris : Q04 - Composition des produits alimentaires
Q02 - Traitement et conservation des produits alimentaires
Q03 - Contamination et toxicologie alimentaires

Champ stratégique Cirad : CTS 3 (2019-) - Systèmes alimentaires

Agences de financement hors UE : Food and Agriculture Organization

Auteurs et affiliations

• Konuspayeva Gaukhar, Al-Farabi Kazakh National University (KAZ)
• Al-Gedan Mubarak M., Conservation and Genetic Improvement Center (SAU)
• Alzuraiq Fuad, Conservation and Genetic Improvement Center (SAU)
• Faye Bernard, CIRAD-ES-UMR SELMET (FRA) - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/604680/)

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