Chemical compositions, antioxidant and antimicrobial activities of essential oils of piper caninum blume

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Abstract

Chemical composition, antioxidant and antimicrobial activities of the fresh leaves and stems oils of Piper caninum were investigated. A total of forty eight constituents were identified in the leaves (77.9%) and stems (87.0%) oil which were characterized by high proportions of phenylpropanoid, safrole with 17.1% for leaves and 25.5% for stems oil. Antioxidant activities were evaluated by using β-carotene/linoleic acid bleaching, DPPH radical scavenging and total phenolic content. Stems oil showed the highest inhibitory activity towards lipid peroxidation (114.9 ± 0.9%), compared to BHT (95.5 ± 0.5%), while leaves oil showed significant total phenolic content (27.4 ± 0.5 mg GA/g) equivalent togallic acid. However, the essential oils showed weak activity towards DPPH free-radical scavenging. Evaluation of antimicrobial activity revealed that both oils exhibited strong activity against all bacteria strains with MIC values in the range 62.5 to 250 μg/mL, but weak activity against fungal strains. These findings suggest that the essential oils can be used as antioxidant and antimicrobial agents for therapeutic, nutraceutical industries and food manufactures. © 2011 by the authors; licensee MDPI, Basel, Switzerland.

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Salleh, W. M. N. H. W., Ahmad, F., Yen, K. H., & Sirat, H. M. (2011). Chemical compositions, antioxidant and antimicrobial activities of essential oils of piper caninum blume. International Journal of Molecular Sciences, 12(11), 7720–7731. https://doi.org/10.3390/ijms12117720

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