Microwave-assisted extraction of bioactive compounds is a research area of extreme interest in several industry fields (e.g., food, cosmetic, perfumery, pharmaceutical, nutraceutical). Using microwaves, full reproductible extractions can be accomplished in seconds or minutes with high reproducibility, reducing solvents and energy consumption, simplifying manipulation and work-up, giving higher products purity, and eliminating post-treatment of waste water. This book explore the latest innovations of microwave extraction in terms of processes and products. This book will be interest to academia, and research and industry that is looking for alternative "green" processes or attempting to diversify into new products such as essential oils, aromas, fat and oils, alkaloids, pigments, anti-oxidants, and other bioactive compounds.