Chemical composition of five essential oils and their antioxidant and in vitro and in vivo antifungal activities against Alternaria alternata in tomato crop

Iara Emanoely Francio; Dalva Paulus; Caroline Lermen Munhoz; Daiane Luckmann Balbinotti de França

doi:10.1080/14786419.2023.2285879

Chemical composition of five essential oils and their antioxidant and in vitro and in vivo antifungal activities against Alternaria alternata in tomato crop

Nat Prod Res. 2023 Nov 24:1-9. doi: 10.1080/14786419.2023.2285879. Online ahead of print.

Authors

Iara Emanoely Francio¹, Dalva Paulus¹, Caroline Lermen Munhoz², Daiane Luckmann Balbinotti de França¹

Affiliations

¹ Department of Agronomy, Federal University of Technology Paraná, Paraná, Brazil.
² Pharmacy Course, University Center (UNISEP), Paraná, Brazil.

PMID: 37999994
DOI: 10.1080/14786419.2023.2285879

Abstract

This study aimed to determine the chemical composition of essential oils from A. gratíssima, O. basilicum, S. microphylla, T. riparia, and T. vulgaris and their antioxidant and antifungal activities against Alternaria alternata strains. Gas chromatography-mass spectrometry revealed that the major components of the essential oils were terpenes. The essential oils of S. microphylla and T. riparia showed higher antioxidant activities than the others. The essential oils of S. microphylla and T. riparia inhibited the growth of the fungus at 3.10 and 6.05 µL/mL, respectively. The essential oil of T. riparia inhibited 93.9% of the growth of the fungus and showed the highest in vivo efficiency in severity reduction (76.2%). We conclude that the essential oil of T. riparia shows promising antifungal activity and is an environmentally safe alternative for controlling fungal diseases in vegetables.

Keywords: Alternaria alternata; Lycopersicon esculentum; antifungal; antioxidant; essential oil.