2025/01/01 by Emel Karaca Öner, Meryem Yeşil, Sinem Aydın +1 · 1 voice
Agricultural and Biological Sciences · #Essential Oils and Antimicrobial Activity #Phytochemistry and Biological Activities #Seed and Plant Biochemistry
paper · pdf · doi:10.1515/chem-2025-0139
openalex publication_date 2025/01/01 · openalex created_date 2025/04/30 · openalex updated_date 2026/06/11
Abstract Sweet marjoram ( Origanum majorana L.) is a species of economic and industrial importance from the Lamiaceae family, whose leaves are used as spices and condiments, fresh or dried. Additionally, it comprises bioactive substances that have applications in the nutraceutical and pharmaceutical industries. This study aims to evaluate the effects of different altitudes on some biological activities in O. majorana . The total phenolic content (TPC) was identified by the Folin–Ciocalteu assay, and antioxidant capacities were evaluated by metal chelating activity, cupric reducing antioxidant, and 2,2-diphenyl-1-picrylhydrazyl assays. TPC was the highest in the altitudes 1,300–1,400 m (188.67 mg QE/g) and 1,100–1,200 m (185.03 mg QE/g), respectively. The maximum antioxidant activities were found to be 241.34 µg AAE/mL (1,300–1,400 m) and 210.63 µg AAE/mL (800–900 m), respectively. EOs exhibit strong antimicrobial activity, particularly against Salmonella typhi , Enterococcus facelis , and Staphylococcus aureus . The findings indicate that the biological activity of O. majorana may vary depending on different altitudes.