Antimicrobial and antioxidant effect on the essential oil from pithecellobium jiringa / Mohamad Farouk Mezan

The aim of this study was to investigate the antimicrobial and antioxidant effect on the
essential oil from P. jiringa. The study take part on the leaves and twigs of P. jiringa. The
properties of P. jiringa were discovered and observed with several tests and analysis. The
study on phytochemical screening of P. jiringa leaves, revealed the presence of secondary
metabolites such as alkaloids, flavonoids, phenolics, terpenoids and saponins that
indicating the potential of plant as traditional medicines. These chemical constituents also
found on TLC after spraying wih Vanillin/H2S04 reagent, FeCI3 reagent, Dragendorff's
reagent, boric and oxalic acid reagent, visualize under UV (254 nm) and UV (366 nm)
that indicated different chemical compounds. The antimicrobial properties which
involving antibacterial and antifungal were determined by using disc diffusion method
with different concentrations of solvent extractions against a gram-positive bacterial
strains: S. aureus and fungi yeast C. albicans. These microorganisms have potential to
cause some diseases such as pneumonia, catheter infections and yeast infection in the
vagina. The result showed that both essential oil extracts of P. jiringa leaves and twigs
does not inhibit the microbial growth of8.aureus and C.albicans. The antioxidant activity
of both P. jiringa leaves and twigs had given positive result through qualitative method
analysis using DPPH reagent. Thus, this P. jiringa might be potential to be antioxidant agent.