Seasonal variation in essential oil content and chemical profile of mint in southeast of Brazil

Joyce Pereira Alvarenga,José Eduardo Brasil Pereira Pinto,Fernanda Ventorim Pacheco,Andreísa Flores Braga,Suzan Kelly Vilela Bertolucci,Alexandre Alves De Carvalho

doi:10.1590/0103-8478cr20200979

Joyce Pereira Alvarenga, José Eduardo Brasil Pereira Pinto + Show 4 more

Open Access

https://doi.org/10.1590/0103-8478cr20200979

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Journal: Ciência Rural	Publication Date: Jan 1, 2021
Citations: 4	License type: CC BY 4.0

Affiliation: Universidade Federal de Lavras

Abstract

ABSTRACT: This study evaluated the influence of seasonality in essential oil (EO) chemical composition of Mentha x piperita L. and Mentha viridis L. grown in southeast of Brazil. Leaves were collected from November 2011 until August 2013, in the middle of the following seasons: Spring (November), Summer (February), Autumn (May) and Winter (August). EO extraction was carried out by hydrodistillation in Clevenger apparatus for 1 hour. Chemical composition of EO was analyzed by GC-FID and GC-MS. The EO content and its chemical composition were influenced by seasonality in both species. The highest EO content was obtained for M. x piperita during spring (4.26%) and for M. viridis during spring (3.30%) and summer (3.70%). Mentha x piperita increased menthol (16.31 to 41.26%), neomenthol (3.02 to 6.39%) and menthone (5.56 to 41.58%) contents during spring and summer, respectively. Whereas, M. viridis EO content did not show a quality response pattern in relation to seasonality. Therefore, harvest time for M. x piperita is recommended during spring, and for M. viridis is recommended during spring and summer.

Highlights

Species from Mentha genus (Lamiaceae) are globally known for their medicinal and aromatic properties, which promote a greater demand of raw materials
Harvest time for M. x piperita is recommended during spring, and for M. viridis is recommended during spring and summer
The highest content was obtained for M. x piperita during spring and for M. viridis during spring and summer

Summary

Introduction

Species from Mentha genus (Lamiaceae) are globally known for their medicinal and aromatic properties, which promote a greater demand of raw materials. Mint species are broadly used in traditional medicine, and have a great economic importance Their essential oil (EO) has antimicrobial, antioxidant, larvicidal and cytotoxic activities (GONÇALVES et al, 2009; MKADDEM et al, 2009; RAMOS et al, 2017). The EO chemical composition of Mentha x piperita is constituted by oxygenated monoterpenes such as menthol, menthone, menthofuran, menthyl acetate and 1,8-cineole (KIZIL et al, 2010; RAMOS et al, 2017). It can be reported in its composition limonene, carvone, neoisomenthol, β-caryophyllene, Approved 03.15.2021 Returned CR-2020-0979.R1 by the author

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