The plants were cleaned thoroughly with tap water to remove
adhering dirt and then cut into 2–3 cm length. For preparation of
dried sample, the plant was oven-dried for two to three days at
60 ± 3C until complete drying attained. Samples were spread
properly on several drying pans and were ensured not stacking
to guarantee a complete drying. For wet samples, freshly collected
plants were used.