Room: Poster Area
Date: Wednesday, 20 May 2026
Time: 09:00 - 10:00 CEST
Session code 6BV.2
Biomass conversion into bio-based chemicals and high-value compounds (part 1)
Comparative Study of Phytochemical Composition and Bioactivities of Different Parts of Alocasia macrorrhizos
Short Introductive summary
This study analyzed the phytochemical constituents, antioxidant activity, and antibacterial activity of crude extracts from the leaves, leaf stalk, and roots of Alocasia macrorrhizos. The bacterial strains used for antibacterial testing were Bacillus cereus, Bacillus subtilis, Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, and Serratia sp. Phytochemical analysis focused on the determination of flavonoid compounds and total phenolic content. The results revealed that the leaf extract contained the highest levels of flavonoids and phenolics. Antioxidant activity, evaluated by the DPPH radical scavenging assay, showed that the leaf extract exhibited the strongest antioxidant potential, with an IC50 value of 1.34 mg/mL. Furthermore, antibacterial testing against all six bacterial strains indicated that the leaf extract had the lowest minimum bactericidal concentration (MBC) and was more effective to kill bacterial strains compared to the leaf stalk and root extracts of A. macrorrhizos.
Presenter
Suttijit SRIWATCHARAKUL
King Mongkut's Institute of Technology Ladkrabang, Biology Dpt., THAILAND
Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited
Co-authors:
Session reference: 6BV.2.19