ABSTRACT
For the dispersion of one liquid in another, various methods are available such as high-pressure homogenization, rotor-stator systems, and ultrasound treatment, and they all have their specific pros and cons. Besides these known methods, some emerging technologies are becoming of age and are expected to move into the emulsification field soon. Various forms of membrane emulsification have been reported since Nakashima and Shimizu filed their first Japanese patent in 1986 (Nakashima and Shimizu, 1986); among others, cross-flow emulsification and premix emulsification have been used for various applications. The newest development in emulsion technology is the use of microtechnological devices; and although most are still operated at small scale, they are very useful tools to investigate emulsion formation in detail.
