Antimicrobial activity and potential use of monoterpenes as tropical fruits preservatives

Brazilian Journal of Microbiology

Roxana Garcia¹  Eliomara S.s. Alves¹  Mirella P. Santos¹  Glória M.f. Viégas Aquije¹  A. Alberto R. Fernandes¹  Reginaldo B. Dos Santos¹  Jose A. Ventura¹  Patricia M.b. Fernandes¹ 

[1] ,Universidade Federal do Espírito Santo Núcleo de Biotecnologia Vitória ES ,Brasil

关键词: biocontrol;    essential oils;    banana;    papaya;    pineapple;    plant diseases;    controle biológico;    óleos essenciais;    banana;    mamão;    abacaxi;    doenças de plantas;   

DOI  :  10.1590/S1517-83822008000100032

来源: SciELO

【 摘 要 】

Banana, papaya and pineapple are the most consumed tropical fruits in the world, being Brazil one of the main producers. Fungi Colletotrichum musae, Colletotrichum gloeosporioides and Fusarium subglutinans f.sp. ananas cause severe post harvest diseases and losses in fruits quality. The aim of this work was to evaluate the effectiveness of five monoterpenes to inhibit the mycelial growth and conidia germination of these three phytopathogens. The monoterpenes citral, citronellal, L-carvone, isopullegol and a-pinene were diluted in ethanol to final concentrations from 0.2 to 1%. All monoterpenes were found to inhibit the growth of the three studies fungi in a dose-dependent manner. Citral was the most effective of the oils tested and showed potent fungicidal activity at concentrations above 0.5%. Also, in vivo evaluation with these tropical fruits demonstrated the efficiency of citral to inhibit fungal growth. These results indicate the potential use of citral as a natural pesticide control of post-harvest fruit diseases.

【 授权许可】

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