Plant material (leaves and stems) of portulaca plant commonly
known as moss rose was collected and washed
several times with tap water to remove all the dirt and any
other extraneous depositions. This material was again
thoroughly washed with double-distilled water, dried first
in sun for 5–6 days, and then in microwave oven (LG
domestic microwave oven, model no. MS-285SD, Korea,
having temperature range 40–100C) for about 15 minutes
at 50C