HPLC Quantification of Phenolic Acids from Vetiveria zizanioides (L.) Nash and Its Antioxidant and Antimicrobial Activity

Figure 2

Antibacterial activity (LC₅₀ values) of the phenolic extracts of V. zizanioides against the bacterial strains E. coli, B. subtilis, and M. luteus. HW: water soluble acidic fraction, HM: methanol soluble acidic fraction, NW: water soluble alkaline fraction, NM: methanol soluble alkaline fraction, and M: 80% methanolic extract.