Essential Oil as Green Preservative Obtained by Ecofriendly Extraction Techniques

Essential oils are formed by a complex matrix of substances that biosynthesized in the secondary metabolism plants. Nowadays, different ecofriendly extraction techniques (e.g., ultrasound-, microwave-, enzyme-assisted extraction, and supercritical fluid CO2, etc.) have been adopted to obtain essential oils. These provide unique quality essentials or extracts from aromatic plants short time with high energy savings. not only impart aroma, but also possess antimicrobial antioxidant activities. Health limitations use synthetic additives drawn researchers’ attention towards as safe natural preservatives. Therefore, this chapter summarizes novel technologies recover extracts. In addition, it focuses on application their constituents green preservatives retard microbial growth oxidative spoilage.