Development of a Thyme Essential Oil Formulation and Its Effect on Monilinia fructigena
Razvoj formulacije na bazi etarskog ulja timijana i njen uticaj na Monilinia fructigena
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Author
Tanovic, Brankica
Gasic, Slavica
Hrustic, Jovana
Mihajlovic, Milica
Grahovac, Mila
Delibasic, Goran
Stevanovic, Marija
Keywords
ThymeFormulations
Essential oils
Timijan
formulacije
etarska ulja
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Show full item recordAbstract
Antifungal activity of thyme essential oil against Monilinia fructigena and development
of an effective and stable oil formulation for agricultural use were studied in this paper.
Bioactivity of the oil itself and its developed formulation, an emulsifiable concentrate (EC),
was tested in vitro and in vivo. In vitro experiments, using a slightly modified agar overlay technique,
showed that the initially emulsified thyme essential oil, as well as the developed formulation,
significantly inhibited mycelial growth of M. fructigena in vitro. Experiments in vivo,
performed on inoculated apple fruits, revealed that the formulation successfully decreased
oil evaporation from the treated area and provided a significant level of M. fructigena suppression,
64.7-72.1% compared to the control. To our knowledge, an EC formulation of thyme
essential oil for agricultural uses had never been developed before. The presented results are
initial findings and evaluation of product activity should be continued in the field to determine
its efficacy and activity spectrum, and to estimate the economic aspect of its use. U radu je proučavana antifungalna aktivnost etarskog ulja timijana na Monilinia fructigena,
kao i mogućnost razvoja efikasne i stabilne formulacije ulja za upotrebu u poljoprivredi.
Bioaktivnost etarskog ulja kao i razvijene formulacije – koncentrata za emulziju
(EC) testirana je u ogledima in vitro i in vivo. Ogledi in vitro, izvedeni po delimično modifikovanoj
metodi testiranja antimikrobne aktivnosti na površini agara, pokazali su da i
inicijalno emulgovano ulje i razvijena formulacija značajno inhibiraju porast micelije izolata
M. fructigena. U ogledima in vivo na inokulisanim plodovima jabuke pokazano je da
je procesom formulisanja značajno smanjena isparljivost ulja sa tretirane površine i postignuta
inhibicija razvoja mrke truleži ploda 64,7-72,1% u poređenju sa kontrolom. Koliko
nam je poznato, u ovom radu je po prvi put razvijena EC formulacija etarskog ulja timijana
za upotrebu u poljoprivredi. Dobijeni rezultati predstavljaju početak istraživanja
koje treba dopuniti rezultatima ispitivanja efekata razvijene formulacije u uslovima praktične
primene, proučavanja spektra njenog delovanja, kao i ekonomske isplativosti njene
primene.