The investigation of pretreatment irradiation power and time of microwave on total phenolic content, oxidative stability and the physicochemical properties of Cannabis oil

In this study, the effects of pretreatment irradiation power and time of microwave on total phenolic content , oxidative stability and the physicochemical properties of Cannabis oil, which included: extraction efficiency, acidity values, refractive and color index were studied by a completely randomized design in the form of 3×3 factorial experiment with three levels of applied microwave irradiation power (180, 540 and 900 W) and three microwave time levels (90, 180 and 270 seconds) and three replications. The hemp seeds were supplied from animal feed store in Gonbad kavous city in early spring of 2017 and oils were obtained by using spiral press .The SAS software was used for data analysis. The results were showed that with increasing microwave power, the oil extraction efficiency, acidity, color index, oxidative stability and total phenol increased significantly (p