In the present book, to give more experimental data using the phytochemical techniques and medicinal plants, research papers, lead articles and review papers contributed by several researchers are included. This book contains 35 s from various experts covering medicinal plants and the experimental data using the methods of identification using physical characteristics and spectroscopy which includes UV, IR, NIR, Mass and NMR. In various s, antioxidant potentials of mushrooms, seaweeds and medicinal plants, isolation of compounds from plants and their biological activities, novel near infra red application in natural products, in silico studies of anti-inflammatory compounds, molecular docking of natural products, CNS depressant activity of medicinal plants, isolation of antifungal proteins from medicinal plants, plant tissue culture, in vitro cell line selection for enhanced production of secondary metabolites, isolation of compounds from cell suspension cultures, X-ray crystal structure analysis of compounds from medicinal plants, synthesis and bioactivity of polycyclic spiroheterocyclic compounds are given in details. This book will prove useful to the students, scientists, researchers, professionals in the field of Plant Science, Pharmaceutical, Chemical Engineering, Biotechnology, Medicinal and Aromatic Plants, Forestry and Horticulture.