Chapter 28

Encapsulated Essential Oils

Main Techniques to Increase Shelf-Life

Fernanda Wariss Figueiredo Bezerra

Fernanda Wariss Figueiredo Bezerra

LABEX/PPGCTA (Extraction Laboratory/Graduate Program in Food Science and Technology), Federal University of Pará, Rua Augusto Corrêa S/N, Belém, Pará, Brazil

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Lucas Cantão Freitas

Lucas Cantão Freitas

LABEX/PPGCTA (Extraction Laboratory/Graduate Program in Food Science and Technology), Federal University of Pará, Rua Augusto Corrêa S/N, Belém, Pará, Brazil

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Vânia Maria Borges Cunha

Vânia Maria Borges Cunha

LABEX/PPGCTA (Extraction Laboratory/Graduate Program in Food Science and Technology), Federal University of Pará, Rua Augusto Corrêa S/N, Belém, Pará, Brazil

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Giselle Cristine Melo Aires

Giselle Cristine Melo Aires

LABEX/PPGCTA (Extraction Laboratory/Graduate Program in Food Science and Technology), Federal University of Pará, Rua Augusto Corrêa S/N, Belém, Pará, Brazil

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Rafael Henrique Holanda Pinto

Rafael Henrique Holanda Pinto

LABEX/PPGCTA (Extraction Laboratory/Graduate Program in Food Science and Technology), Federal University of Pará, Rua Augusto Corrêa S/N, Belém, Pará, Brazil

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Raul Nunes de Carvalho Junior

Raul Nunes de Carvalho Junior

LABEX/PPGCTA (Extraction Laboratory/Graduate Program in Food Science and Technology), Federal University of Pará, Rua Augusto Corrêa S/N, Belém, Pará, Brazil

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First published: 28 June 2023

Summary

Essential oils (EOs) have numerous beneficial properties that make them attractive for the food, cosmetic, pharmaceutical and agricultural areas. However, its high volatility and instability bring limitations to its use. The EOs encapsulation process presents itself as an alternative to these limitations, which may result in increased shelf life due to increased protection against high temperatures, oxidation, hydrolysis, radiation, controlled delivery of active agents, in addition to expanding the applications possibilities. Several encapsulation techniques have been developed to “pack” bioactive substances in coating materials, ensuring protection against deterioration, controlled release and increased added value. In this chapter, general aspects about the techniques of coacervation, extrusion, nanoprecipitation, emulsification, spray drying, thin film hydration method and supercritical fluid technology and their applications in the EOs encapsulation are presented.

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