**5. Conclusions**

The EP based on the mixture of EOs (eucalyptus and rosemary) had different impacts on tomato fruits. Tomato fruit's quality attributes including TA, ripening index as well as antioxidants were not significantly affected by EP dipping application, whilst the same application method resulted in decreased damage index (H2O2 and MDA levels). Exposure of tomato fruits to vapor EP low concentration (0.4%) increased fruit's antioxidants. It is important to consider the application method of the EP, as it seems from this study that vapor applications had more profound effects than dipping application. The nutritional value (mostly AA and carotenoid content) remained unaffected in different EP levels and/or applications vapor and dipping). The findings of this study indicate that the investigated EP presented similar and/or better results on tomato fruits compared to those treated with chlorine (a commonly used sanitizing agent of the food industry); thus, this product could possibly be considered as an alternative and environmentally friendly agent used during postharvest handling of fresh produce. The use of natural products in fresh produce preservation should be further investigated to determine the optimum conditions of application (i.e., method, time, concentration) for each commodity examined in each case. However, caution should be taken when applying EOs and products based on their components to fresh produce commodities, since products' sensory attributes might be adversely impacted (undesirable/intense aroma and flavor) or even allergy issues might arise during consumption.

**Supplementary Materials:** The following are available online at https://www.mdpi.com/article/10 .3390/plants10061125/s1, Table S1: Chemical composition (%) of essential oils of rosemary (*Rosmarinus officinalis* L.) and eucalyptus (*Eucalyptus crabra* L.).

**Author Contributions:** Conceptualization, P.X. and N.T.; methodology, P.X., I.I. and A.C.; software, P.X. and M.C.S.; validation, P.X., A.C., M.C.S. and N.T.; formal analysis, P.X.; investigation, P.X., I.I., and A.C.; resources, M.C.S. and N.T.; data curation, P.X. and A.C.; writing—original draft preparation, P.X. and A.C.; writing—review and editing, A.C., M.C.S. and N.T.; visualization, P.X. and M.C.S.; supervision, P.X., A.C. and N.T.; project administration, M.C.S. and N.T.; funding acquisition, M.C.S. and N.T. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research was funded by Cyprus Research and Innovation Foundation programmes for research, technological development and innovation "RESTART 2016–2020", grant number ENTERPRISES/0916/0025; project PlantSafe. The project is co-funded by the European Regional Development Fund and the Republic of Cyprus.

**Institutional Review Board Statement:** Not applicable.

**Informed Consent Statement:** Not applicable.

**Data Availability Statement:** The data presented in this study are available in the article.

**Conflicts of Interest:** The authors declare no conflict of interest.
