P08 高出力バス型超音波照射機（US-eM）の乳化性能と調製された乳化剤フリーエマルションの物理的性質

抄録

Potential of high-power bath-type ultrasonic irradiator (named as US-eM) that we developed for emulsification was examined to develop the high-efficiency emulsification equipment. We found that US-eM enables to produce the emulsifier-free (EF-) dodecane-in-water (DD/W) emulsions with the treatment for 1 min. Diameter of DD droplets in EF-DD/W emulsions prepared with US-eM reached to several hundred nanometers with the treatment for 1 min. On the other hand, the diameters of DD droplets in EF-DD/W emulsions prepared by commercial available rotor-stator homogenizer, ultrasonic homogenizer and ultrasonic cleaner were several micrometers. Furthermore, the colloidal stability of EF-DD/W emulsions prepared by US-eM was higher than EF-DD/W emulsions prepared by commercial available rotor-stator homogenizer, ultrasonic homogenizer and ultrasonic cleaner.