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Some selected medicinal plants used by Bentian tribe from Indonesia were evaluated for potential antimicrobial and antioxidant properties. The leaves stem bark and root of the plants were extracted with n-hexane, ethyl acetate and ethanol to give respective extracts. Antimicrobial activity against Propionibacterium acnes and Candida albicans was determined by an agar well diffusion method. Antioxidant activity was assayed by the DPPH radical scavenging activity mechanism. The results showed that n-hexane, ethyl acetate and ethanol extracts of Cananga odorata, ethanolic extract of Chromolaena odorata, and ethanolic extracts of Hyptis capitata and Ampelocissus cinnamomeae displayed good activity against P. acnes at 25–400 μg/well of the extracts tested. The n-hexane and ethanol extracts of Chromolaena odorata and H. capitata, and the n-hexane, ethyl acetate and ethanol extracts of Cananga odorata displayed more activity against C. albicans than others at 25–400 μg/well of the extracts tested. The most antioxidant activities against DPPH were displayed by the ethanol extracts of Ficus variegata stem bark, Leucosyke quadrinerva root and Clausena excavata leaves exhibiting 91%, 91% and 86% inhibition, respectively. The present results showed potential of some medicinal plants used by Bentian tribe from Indonesia as natural anti-microbial and anti-oxidant and potentially anti-inflammatory agents.
Some selected medicinal plants used by Bentian tribe from Indonesia were evaluated for potential antimicrobial and antioxidant properties. The leaves stem bark and root of the plants were extracted with n-hexane, ethyl acetate and ethanol to give respective extracts. Antimicrobial activity against Propionibacterium acnes and Candida albicans was determined by an agar well diffusion method. Antioxidant activity was assayed by the DPPH radical scavenging activity mechanism. The results showed that n-hexane, ethyl acetate and ethanol extracts of Cananga odorata, ethanolic extract of Chromolaena odorata, and ethanolic extracts of Hyptis capitata and Ampelocissus cinnamomeae displayed good activity against P. acnes at 25–400 μg/well of the extracts tested. The n-hexane and ethanol extracts of Chromolaena odorata and H. capitata, and the n-hexane, ethyl acetate and ethanol extracts of Cananga odorata displayed more activity against C. albicans than others at 25–400 μg/well of the extracts tested. The most antioxidant activities against DPPH were displayed by the ethanol extracts of Ficus variegata stem bark, Leucosyke quadrinerva root and Clausena excavata leaves exhibiting 91%, 91% and 86% inhibition, respectively. The present results showed potential of some medicinal plants used by Bentian tribe from Indonesia as natural anti-microbial and anti-oxidant and potentially anti-inflammatory agents.
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This study was supported by an International Research Collaboration and Scientific Publication Grant from DGHE-Ministry of Education and Culture, Republic of Indonesia (Contract No. 361/H17.16/PG/2014). The research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2010-0008259). PT. Kaltim Methanol Industri, Bontang, East Kalimantan, Indonesia, is gratefully acknowledged for providing some chemicals.