A novel cold plasma for extraction of essential oil from piper betel leaves

The essential oil found in betel leaves has a wide range of medicinal application. So, extraction of highly bioactive compounds along with essential oil from betel leaves is interesting among the industries. However, extraction of this betel leaves oil by traditional methods negatively affects the yield, energy, time, and cost. So, the novel non thermal green technology has been adopted for better utilization and improvement of extraction yield. The cold plasma is one of the novel techniques consider as a green technology which eliminates the limits of conventional extraction methods and improved the extraction efficiency by surface etching of oil holding gland. It facilitate simple and fastens the extraction rate while preserving the biological compounds due to low temperature conditions. So, the cold plasma conditions have been optimized and found that 35 kV voltage with 10 min of exposure time produced 154.39 % of extraction yield efficiency.