ẢNH HƯỞNG CỦA MỘT SỐ YẾU TỐ ĐẾN QUÁ TRÌNH TỔNG HỢP NANO NHŨ TƯƠNG TỪ DẦU BƠ

Abstract

In this study, Tween 80 was used as a surfactant by ultrasonic vibration combined with mechanical ultrasonic vibration to synthesize nanoemulsions from avocado oil. The influencing factors were investigated: volume ratio of avocado oil: distilled water (V_oil/V_water), volume ratio oil in water phase (OIW): surfactant (V_OIW/V_{Tween 80}), mixing stirring speed, and mixing time to the process of forming nanoemulsion. The synthesized nanoemulsion from avocado oil achieves high quality when ultrasound for 30 minutes at room temperature with V_oil/V_water = 1/75 (v/v), V_OIW/V_{Tween 80} = 100/1 (v/v), mixing speed at 600 rpm for 40 min. The nanoparticles sizes of nanoemulsions (140,1 nm), good dispersion in water as shown by polydispersity index (pDI = 0,223). At 600 nm, the nanoemulsion system has a turbidity of 0,305.