2.2.2. Conventional and ultrasonic extractions
Conventional extractions (CE) were done by using a water bath(Memmert-WB22) whereas ultrasonic extractions (UE) were carried out using an ultrasound bath operating at 37 kHz (Elmasonic-S100H). Temperatures were controlled with a digital thermometer(Shaanxi Taurus, China) during extractions to stabilize the desired temperature.