Potential of rosemary hydrosol for effective growth inhibition of fungi isolated from buckwheat grains | Potencial rožmarinovega hidrolata za učinkovito zaviranje rasti gliv, izoliranih iz zrnja ajde

English. Modern botanical fungicides should be non-toxic and readily available. Hydrosols are by-products of essential oil distillation with a large potential market size. They are, therefore, suitable natural candidates for effective fungicide development. Improving grain quality and safety during storage are significant challenges in the contemporary world. We have therefore tested the possible use of rosemary (Rosmarinus officinalis L.) hydrosol as an efficient antifungal agent against fungi isolated from buckwheat grain. Fungi from the genus Fusarium were the most susceptible to rosemary hydrosol, as growth inhibition was observed in all tested species by 15 % rosemary hydrosol and in F. graminearum already by 5 % hydrosol concentration. Since there was no inhibitory effect on the germination of buckwheat grain after exposure to rosemary hydrosol, it could potentially be used as an environmentally friendly alternative for suppressing fungal growth on grains.

Slovenian. Sodobni rastlinski fungicidi morajo biti nestrupeni in splošno dostopni. Hidrolati so stranski produkti destilacije eteričnih olj, ki imajo velik delež na tržišču, zato predstavljajo primerne naravne mešanice za razvoj novih učinkovitih fungicidov. Velik izziv sodobnega časa predstavljajo izboljšave kakovosti in varnosti zrnja predvsem v času skladiščenja. Zato smo v raziskavi testirali potencialno uporabo hidrolata iz rožmarina (Rosmarinus officinalis L.) kot učinkovitega protiglivnega sredstva za zatiranje gliv, izoliranih iz zrn ajde. Glive iz rodu Fusarium so se izkazale za najbolj občutljive na rožmarinov hidrolat, saj smo pri 15 % koncentraciji hidrolata opazili zavrtje rasti vseh testiranih vrst, pri F. graminearum pa že pri 5 % koncentraciji rožmarinovega hidrolata. Ker nismo opazili nobenega negativnega vpliva na kalitev zrnja ajde po izpostavitvi rožmarinovemu hidrolatu, bi ta lahko bil potencialno uporabljen kot okolju prijazna alternativa za zatiranje glivne rasti na zrnju.