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Effects of oil-droplet diameter on the stability of squalene oil in spray-dried powder
- Abd Ghani, Asmaliza, Matsumura, Keisuke, Yamauchi, Atsuki, Shiga, Hirokazu, Adachi, Shuji, Izumi, Hideaki, Yoshii, Hidefumi
- Drying technology 2016 v.34 no.14 pp. 1726-1734
- droplets, emulsifying, equations, oils, oxidation, oxidative stability, polymerization, powders, sodium caseinate, spray drying, squalene
- Effects of the oil-droplet diameter and emulsification with polymerized sodium caseinate (PNC) on the stability of squalene oil (SQ) retention in spray-dried powder were investigated. The SQ droplet diameter significantly affected the stability of the oil in spray-dried powders. The degradation behavior of SQ powders at 105°C was correlated using the Avrami equation. This oxidation mechanism may occur because of the propagative transfer of radical oxidation between oil-droplet particles. SQ emulsified with 5 wt% PNC and small oil droplets had better oxidative stability when compared with 3 wt% sodium caseinate.