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Essential Oils and Their General Aspects, Extractions and Aroma Recovery

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Essential Oils

Abstract

Essential oils (EOs) obtained from aromatic plants represent a diverse and unique source of natural products, which are widely used for bactericidal, fungicidal, antiviral, antiparasitic, insecticidal, medicinal, or cosmetic applications, especially in the pharmaceutical, sanitary, cosmetic, food, and agricultural industries. Essential oils are complex mixtures of various constituents such as phenylpropanoids, esters, and homo-, mono-, sesqui-, di-, tri-, and tetra-terpenes. Before EOs can be analyzed and their therapeutic properties investigated, it is necessary to extract the oil from different plant parts such as leaves, twigs, bark, fruits, etc. In this chapter, we will provide a general overview of the chemical diversity of essential oils, plant parts from which essential oils can be extracted, as well as the main methods of EO extraction such as hydrodistillation, steam distillation, supercritical fluid extraction, and microwave-assisted extraction.

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Acknowledgments

The author Dr Mozaniel Santana de Oliveira, thanks PCI-MCTIC/MPEG, as well as CNPq for the scholarship process number: 302050/2021-3.

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There are no conflicts of interest in this study.

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© 2022 The Author(s), under exclusive license to Springer Nature Switzerland AG

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de Souza, A.L.C., Campos e Silva, R., Bezerra, F.W.F., de Oliveira, M.S., Neves Cruz, J., de Aguiar Andrade, E.H. (2022). Essential Oils and Their General Aspects, Extractions and Aroma Recovery. In: Santana de Oliveira, M. (eds) Essential Oils. Springer, Cham. https://doi.org/10.1007/978-3-030-99476-1_1

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