Ultrasonic following Steam-Hydro Distillation : Intensifikasi Proses pada Penyulingan Minyak Serai Wangi dengan Bantuan Gelombang Ultrasonik

Abstract

The Steam-Hydro Distillation (SHD) is a common method in the citronella oil processing industry. However, the yield and quality of the oil produced tend to be inconsistent, and the energy consumption is quite high. Hence, the process intensification in the distillation of citronella oil using ultrasonic waves is expected to increase the yield and quality of the oil produced, as well as a reduction in energy requirements. This research was conducted to examine the effect of operating conditions of sonication on the Ultrasonic following Steam-Hydro Distillation (US-SHD) on the yield and quality of citronella oil. The extraction of citronella oil with the US-SHD was carried out through the sonication stage for 5, 10, 15 and 20 minutes and used a power of 180 and 360 watts. This process then followed by the distillation stage for 60 minutes. In the US-SHD, the highest yield of citronella oil obtained by sonication for 20 minutes with 360 watts of power was 1,13%. Whereas in the SHD, the yield obtained was only 0,85%. The results of this study also showed that with a slight increase in energy consumption due to ultrasonic wave induction (13,92%), it was able to produce a substantial increase in citronella oil yield (31,83%), but did not significantly influence its density.

Toxicological assessment of lemongrass (Cymbopogon nardus L.) liquid waste: Biolarvicides againts the third instar larvae of Aedes aegypti

“…The production of lemongrass (C. nardus L.) essential oil is generally carried out through a distillation process using the steamhydro distillation method (Gotama & Ashadi, 2020). In addition to getting benefits, this activity is also expected to have a negative impact on the environment.…”