Ultrasound-assisted ethanolic extraction of oil from Pistacia vera l. using response surface methodology

Year 2024, Volume: 7 Issue: 1, 7 - 11, 30.06.2024

Ezgi Kalkan , Medeni Maskan

Abstract

In this study, an ultrasound assisted ethanolic extraction technique was used for the first time with success to extract oil from Pistacia vera L.The influence of extraction temperature (25, 37.5, 50°C), extraction time (10, 20, 30 min), and solvent to solid ratio (2:1, 4:1, 6:1) on oil efficiency was studied. Ultrasound-assisted extraction is a sustainable extraction technology that uses non-toxic organic solvents like ethanol instead of traditional solvents. According to numerical optimization, the ideal extraction parameters were 32.74°C extraction temperature, 29.47 min extraction time, and 5.94:1 extraction solvent to solid ratio. At these ideal conditions, oil yield is predicted to be 23.54% and experimentally obtained to be 22.04%. The study discovered that linear and quadratic levels of extraction time, as well as interaction levels of extraction time and solvent to solid ratio, had a significant effect on oil yield. It can be stated that the ultrasound-assisted ethanolic method is effective in providing high oil yields compared to traditional methods, reducing extraction time and temperature, and allowing the use of alternative green solvents.

Keywords

Pistachio oil, Extraction, Ultrasound, Optimization

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