Volatile organic compounds of camel milk and shubat across Kazakhstan's regions, seasons, and breeds

Bilal Zauresh, Kondybayev Askar, Ospanova Aikerim, Tormo Helene, Akhmetsadykova Shynar, Amutova Farida, Faye Bernard, Konuspayeva Gaukhar. 2024. Volatile organic compounds of camel milk and shubat across Kazakhstan's regions, seasons, and breeds. Heliyon, 10 (15):e35365, 10 p.

Résumé : Despite extensive research in recent years on camel milk composition and health benefits, limited scientific data exists on the volatile organic compound profiles of camel milk and its fermented product, shubat. This study analyzed volatile organic compounds (VOCs) in raw camel milk and shubat from six Kazakh farms across all seasons. We found that camel milk displayed higher concentrations of aldehydes, ketones, and alcohols with the main two compounds in milk being acetone and (2-Aziridinylethyl) amine. Conversely, the majority of volatile organic compounds in shubat samples belonged to esters, but the predominant compounds by concentration were ethanol, dimethylamine, propanoic acid, and octanoic acid. Seasonality emerged as the primary driver of variation in milk, with heptanal being the most discriminative compound. Fermented milk showcased regional diversity likely driven by distinct microbial communities. Findings demonstrate the dynamic nature of camel milk's aromatic properties, which are influenced by multiple factors that contribute to its distinctive sensory characteristic.

Mots-clés Agrovoc : lait de chamelle, lait fermenté, dromadaire, variation saisonnière, production laitière, composition des aliments, chameau, acide octanoïque, analyse discriminante, composition chimique, données de production

Mots-clés géographiques Agrovoc : Kazakhstan

Mots-clés libres : Camel milk, Shubat, Volatile organic compounds, Camel species, Variability, Kazakhstan

Agences de financement hors UE : Ministry of Science and Higher Education of the Republic of Kazakhstan

Auteurs et affiliations

• Bilal Zauresh, Al-Farabi Kazakh National University (KAZ)
• Kondybayev Askar, Scientific and Production Enterprise Antigen (KAZ) - auteur correspondant
• Ospanova Aikerim, M. Auezov South Kazakhstan University (KGZ)
• Tormo Helene, Université de Toulouse (FRA)
• Akhmetsadykova Shynar, Al-Farabi Kazakh National University (KAZ)
• Amutova Farida, Al-Farabi Kazakh National University (KAZ)
• Faye Bernard, CIRAD-ES-UMR SELMET (FRA)
• Konuspayeva Gaukhar, Al-Farabi Kazakh National University (KAZ)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/610098/)

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