This book examines the most up-to-date research in the agricultural field. Chapter One reviews the role of plant cuticle in the postharvest of fruits and vegetables. Chapter Two provides a critical comparison between some emergent methods for bioactive compound extraction from fruits and vegetables residues. Chapter Three analyzes the effect of exogenous abscisic acid spray on phenolic and scavenging free radical activity of olives during storage. Chapter Four studies the sustainable production of maguey (Agave salmiana) to improve the mezcal agroindustry competitiveness. Chapter Five describes the structure, sources, properties and potential applications of cereal arabinoxylans. Chapter Six focuses on the problems that arise from the wide use of pharmaceutical drugs and their entry routes to the natural systems. Chapter Seven describes the effect of a microwave-assisted hydrolytic treatment on the degradability of shrimp exoskeletons.