**Preface XI**


Preface

Terpenes belong to the diverse class of chemical constituents isolated from materials found in nature (plants, fungi, insects, marine organisms, plant pathogens, animals and endo‐ phytes). Theses metabolites have simple to complex structures derived from Isopentyl di‐ phosphate (IPP), dimethyl allyl diphosphate (DMAPP), mevalonate and deoxyxylulose biosynthetic pathways. Terpenes play a very important role in human health and have sig‐ nificant biological activities (anticancer, antimicrobial, anti-inflammatory, antioxidant, anti‐ allergic, skin permeation enhancer, anti-diabetic, immunomodulatory, anti-insecticidal). According to new research, terpenes cineole (a spicy eucalyptus-derived flavoring oil) are ready to be directly converted to biofuel as soon as they are produced. This book provides an overview and highlights recent research in the phytochemical and biological understand‐ ing of terpenes and terpenoid and explains the most essential functions of these kinds of

**Dr. Shagufta Perveen (MACS-USA, MRSC-UK, MIUPAC-USA)**

Department of Pharmacognosy

College of Pharmacy King Saud University Riyadh, Saudi Arabia

College of Pharmacy King Saud University Riyadh, Saudi Arabia

**Prof. Dr. Areej Al-Taweel** Department of Pharmacognosy

secondary metabolites isolated from natural sources.
