Chemical composition and antimicrobial activity of Vitex agnus-castus L. fruits and leaves essential oils |
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Authors: | Dejan Stojkovi? Marina Sokovi? Jasmina Glamo?lija Ana D?ami? Ana ?iri? Mihailo Risti? Dragoljub Grubiši? |
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Affiliation: | 1. Institute for Biological Research ‘Siniša Stankovi?’, University of Belgrade, Bulevar Despota Stefana 142, 11000 Belgrade, Serbia;2. Institute of Botany and Jevremovac Botanical Garden, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia;3. Institute for Medicinal Plant Research ‘Josif Pan?i?’, Tadeuša Koš?uška 2, 11000 Belgrade, Serbia |
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Abstract: | The following study deals with the chemical composition, antimicrobial activity of essential oils of Vitex agnus-castus L. and their main constituents in vitro and in vivo. The main compounds in the oil of unripe fruits were sabinene (17.8%) and 1,8-cineole (17.5%), while in the oil of the ripe fruits dominant compounds were 1,8-cineole (16.3%) and sabinene (13.4%). The leaves oil contained an abundance of 1,8-cineole (22.0%), as well. All of the oils tested were rich sources of α-pinene (12.2%, 9.4% and 9.4%, respectively). Antimicrobial activity was tested using bacterial and fungal strains by the microdilution method. Using the same technique 1,8-cineole and α-pinene showed very high antimicrobial potency as well. As 1,8-cineole was the predominant constituent of the oils, we have chosen to test it further in an in vivo experiment. Randomly chosen apples were treated with 1,8-cineol solution and infected with Aspergillus niger in order to provoke Aspergillus rot in apples. Disease incidence was recorded. |
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Keywords: | Antimicrobial Vitex agnus-castus Essential oils 1 8-Cineole Aspergillus apple rot Disease incidence |
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