Fitoquímica e propriedade antibacteriana de Arisaema liemiana

Introduction: Arisaema liemiana was newly identified as a new species for the flora of Vietnam in 2020. It was discovered in Takou Nature Reserve, Binh Thuan province, Vietnam, characterized by its height of 20-50 centimeters, deciduous nature, light yellow spathe limb, white spathe tube, and spadix appendix covered with filiform neuter structures. Aim: This study aimed to investigate the chemical components and antibacterial activity of the acetone extracts derived from the aerial parts and tubers of A. liemiana. Methodology: A. liemiana specimens were collected from Takou Mountain within Takou Nature Reserve, Binh Thuan Province, and subjected to acetone extraction. The chemical components of these extracts were analyzed using GC-MS, while the antibacterial activity was assessed through the agar disc diffusion method. Results: A total of 57 compounds were identified in the aerial part and tuber extracts of which 32 components were found in the first extract while the latter one contained 34 constituents. The antibacterial effectiveness of the tuber acetone extracts was assessed against 10 bacterial strains, revealing diverse inhibition zones. Notably, S. aureus ATCC 25923 exhibited the largest inhibition zone diameter, followed by B. cereus, V. parahaemolyticus, S. flexneri, P. aeruginosa, E. coli, L. monocytogenes, S. saprophyticus, S. typhimurium, and S. enteritidis. Conclusion: The chemical composition and antibacterial properties of acetone extracts derived from Arisaema liemiana was investigated for the first time. The observed notable antibacterial efficacy suggests potential pharmacological implications of A. liemiana. Additionally, this research unveils broader applications of A. liemiana in herbal medicine.