Most of the developing countries have adopted traditional
medical practice as an integral part of their culture.
Historically, most medicinal preparations were derived
from plants, whether in the simple form of raw plant
materials or the refined form of crude extracts, mixtures,
etc. In todays world, medicinal plants are gaining attention
owing to the fact that the herbal drugs are cost‑effective,
easily available and with little or no side effects. Plant‑based
natural constituents can be obtained from any part of the
plant like bark, leaves, flowers, fruits, roots, seeds, etc.