Extraction of Essential Oil from Indigenous Herb Physalis angulata Linn using Microwave Assisted Extraction

Abstract

Essential oil is a kind of remedy that is originated from various part of plants. One of them is Physalis angulata Linn that is beneficial to human health yet very scarce explored by researchers. In this work, extraction of this herbal essential oils using microwave-assisted extraction (MAE) is proposed as an alternative greener extraction technique. The objective of this study is to determine the effect of extraction time (4, 6, 8, 10 and 12 min), liquid-to-solid ratio (ranging from 8 to 16 ml/g) and microwave power (270, 360, 450, 540 and 630 W) on the extraction yield of oil from Physalis angulata Linn. Results showed that the optimum operating condition of MAE of this herb that gave the maximum 21 wt% yield of essential oil was found when extracted in 12 minutes for duration of extraction time using 12 ml/g for liquid-to-solid ratio and 630 W of microwave power. GC-MS results presented the highest constituent of 4,5- Dichloro-ortho-phenylenediamine (24.07 min), Diethyl Phthalate (24.09 min) and Phthalic acid, ethyl 2-pentyl ester (24.09 min) with percentage of 4.10 %. These results demonstrated that Physalis angulata Linn essential oil possess of health beneficial phytocompounds that exhibits as antimicrobial, anticancer and anti-toxic agent.