Microwave assisted drying and extraction technique; kinetic modelling, energy consumption and influence on antioxidant compounds of fenugreek leaves

Fenugreek leaves contains bioactive compounds, which are helpful in maintaining human health. These compounds adversely affected conventional drying methods. Therefore, this study was carried out to retain maximum amount of these components through microwave-assisted and extraction technique. The technique optimized for simultaneous process fenugreek leaves. rate time were influenced by the level microwave power; reduced from 21 5 minutes, when power changed 30 100 W. Unlikely, increased 1.79 4.56 ± 0.05 g/(100 g.min) with change (30 W). Moreover, moisture ratio analysis determined that two term model best demonstrate fitness experimental values. energy consumption lowest 100W compared other powers. Furthermore, comparison between microwave-based methanol-extraction indicated antioxidant activity better preserved ones even at higher levels.