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- Title
Nano-emulsion of denak (Oliveria decumbens Vent.) essential oil: ultrasonic synthesis and antifungal activity against Penicillium digitatum.
- Authors
Rafiee, Somayeh; Ramezanian, Asghar; Mostowfizadeh-Ghalamfarsa, Reza; Niakousari, Mehrdad; Saharkhiz, Mohammad Jamal; Yahia, Elhadi
- Abstract
Denak (Oliveria decumbens Vent.) is an endemic aromatic plant belonging to Apiaceae family. This study evaluated the antifungal activity of denak essential oil (EO) nano-emulsions formulated by ultrasonic emulsification on Penicillium digitatum, the main causal agent of postharvest decay of citrus fruit. EO chemical compositions detected by gas chromatography demonstrated that thymol (28.5%), carvacrol (26.2%), myristicin (17.5%) and elemicin (9.9%) were the dominant components. Denak EO nano-emulsions with droplet diameter of 26.9 nm formulated by ultrasonic emulsification. Inhibition of mycelial growth was observed at EO concentrations higher than 0.5 µL mL−1. The antifungal activity of the EO increased with increasing the concentration of EO. The minimal inhibitory concentration of EO nano-emulsion was found to be 0.5 µL mL−1. These results demonstrate the potential of ultrasonication for preparing denak EO nano-emulsion which could be used as a suitable treatment to control postharvest diseases caused by P. digitatum and possibly other pathogens. This newly formulated denak EO nano-emulsion can be applied as a useful treatment for prevention of citrus losses.
- Subjects
ESSENTIAL oils; ANTIFUNGAL agents; AROMATIC plants; UMBELLIFERAE; PENICILLIUM digitatum
- Publication
Journal of Food Measurement & Characterization, 2022, Vol 16, Issue 1, p324
- ISSN
2193-4126
- Publication type
Article
- DOI
10.1007/s11694-021-01163-7