Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University, Jl. Prof. Soedarto, SH., Tembalang, Semarang, Indonesia
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@article{JKSA83427, author = {Enny Fachriyah and Tyara Qisti Aisyah and Muhammad Badrul Huda}, title = {Combination of Nutmeg Seed (Myristica fragrans Houtt.) and Lemongrass (Cymbopogon citratus) Essential Oils: Evaluation of Antioxidant and Antibacterial Activities}, journal = {Jurnal Kimia Sains dan Aplikasi}, volume = {29}, number = {5}, year = {2026}, keywords = {Essential oils; nutmeg; lemongrass; antioxidants; antibacterial}, abstract = {Essential oils are secondary metabolites that exhibit various biological activities, such as antioxidants and antibacterial activities. This study aimed to evaluate the antioxidant and antibacterial activities of nutmeg seed ( Myristica fragrans Houtt.) and lemongrass ( Cymbopogon citratus ) essential oils, as well as their combination. The essential oils were obtained by steam distillation, physically characterized, and their chemical components analyzed using GC-MS. Antioxidant activity was determined using the DPPH method, and antibacterial activity was evaluated using the well-diffusion method against E. coli and S. aureus . The results showed that nutmeg seed essential oil contained α -pinene (18.49%) as the major compound with moderate antioxidant activity (IC 50 = 139.49 mg/L), whereas lemongrass essential oil was dominated by α-pinene (29.19%) with lower antioxidant activity (IC 50 = 263.54 mg/L). In antibacterial assays, nutmeg essential oil showed moderate to strong activity, while lemongrass essential oil exhibited weak to moderate activity. Among the combinations, the ratio of 2:1 (nutmeg:lemongrass) demonstrated the highest antibacterial activity, with inhibition zones of 13.50 mm against E. coli and 14.00 mm against S. aureus at 50% concentration, indicating improved antibacterial effects compared to other combinations. The combined essential oils of nutmeg and lemongrass exhibited bacteriostatic activity and showed improved antibacterial effects; however, no enhancement in antioxidant activity was observed.}, issn = {2597-9914}, pages = {338--346} doi = {10.14710/jksa.29.5.338-346}, url = {https://ejournal.undip.ac.id/index.php/ksa/article/view/83427} }
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