*3.7. Statistical Analysis*

The results are expressed as means ± SD. Statistical analysis was performed by one-way analysis of variance (*ANOVA*) using the SPSS package. All experiments were performed in triplicate and the differences were considered significant at *p* < 0.05.

#### **4. Conclusions**

We aimed to characterize the phenolic composition and evaluate the antioxidant and antibacterial activities of the hydroethanolic extract from aerial parts of *Origanum compactum*, collected in Morocco. The obtained results reveal the richness of the hydroethanolic extract of *Origanum compactum* in flavonoids and phenolic acids. Furthermore, this extract showed a strong antioxidant capacity and an antibacterial effect, probably due to the presence of luteolin, apigenin and their derivatives, rosmarinic acid and diosmetin. Therefore, based on the obtained results, the aerial parts of *Origanum compactum* are promising as a source of natural antibacterial and antioxidant agents that can be used in food and pharmaceutical fields.

**Author Contributions:** Conceptualization, M.C., T.Z. and L.B.; methodology, M.C., T.Z. and L.B.; investigation, M.C., T.Z., L.B., Y.O.E.M., M.A. and A.B.; resources, F.C. and L.M.; data curation, Y.O.E.M. and A.B.; writing—original draft preparation, M.C., T.Z., L.B. and A.B.; writing—review and editing, F.C.; supervision, F.C. and A.B.; project administration, L.M. and F.C. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research received no external funding.

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

**Informed Consent Statement:** Not applicable.

**Data Availability Statement:** Not applicable.

**Acknowledgments:** The authors are thankful to Shimadzu and Merck Life Science Corporations for the continuous support.

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

**Sample Availability:** Samples of the extract and the plant are available from the authors.
