Anhydrous fat crystallization of ultrasonic treated goat milk: DSC and NMR relaxation studies

Autor: Andrey Sergeev, Natalia Shilkina, Mikhail Motyakin, Irina Barashkova, Victoria Zaborova, Ksenia Kanina, Nina Dunchenko, Olga Krasulya, Nor Saadah M. Yusof
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Ultrasonics Sonochemistry, Vol 78, Iss , Pp 105751- (2021)
Druh dokumentu: article
ISSN: 1350-4177
DOI: 10.1016/j.ultsonch.2021.105751
Popis: Methods of NMR relaxation and differential scanning calorimetry (DSC) were used to study the crystallization of anhydrous milk fat (AMF) obtained from milk and subjected to ultrasonic (US) processing. Amongst the changes in the crystallization nature under the influence of ultrasound are the decrease in the crystallization temperature and the increase in the melting enthalpy of the anhydrous milk fat samples. The increase is ∼30% at 20 min of isothermal crystallization and is presumably explained by the additional formation of β'-form crystals from the melt. The parameters of the Avrami equation applied to the description of experimental data show an increase in the crystallization rate in samples with ultrasonic treatment and a change in the dimension of crystallization with a change in melting temperature.
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