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Antibacterial and antioxidant potential of polar microorganisms isolated from Antarctic lichen Psoroma sp.

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Title
Antibacterial and antioxidant potential of polar microorganisms isolated from Antarctic lichen Psoroma sp.
Other Titles
남극지의류 프소로마 유래 세균의 항균 및 항산화능
Authors
Kim, Mi-Kyeong
Oh, Tae-Jin
Park, Hyun
Keywords
Antarctica; Antibacterial; Antioxidant
Issue Date
2014
Citation
Kim, Mi-Kyeong, Oh, Tae-Jin, Park, Hyun. 2014. "Antibacterial and antioxidant potential of polar microorganisms isolated from Antarctic lichen Psoroma sp.". African journal of microbiology research, 8(39): 3529-3535.
Abstract
Recent studies suggest that bacterial communities in lichens contribute structurally and ecologically, but their biological activities are not fully investigated. In this study, we explored biological potential of microorganisms that are isolated from Antarctic lichen Psoroma sp. Using their bacterial cell culture extracts, we evaluated antibacterial and antioxidant properties. Among 20 bacterial species that were isolated from Antarctic lichen Psoroma sp., PAMC 26508 (Streptomyces sp., similarity: 100%) showed antibacterial activities against all target bacteria with inhibition zone diameter was 7 to 9. PAMC 26537 (Burkholderia sordidicola, similarity : 98.828%) exhibited higher antioxidant potential with an inhibition rate of 60.12% in DPPH and 58.69% in ABTS assay than control ascorbic acid (29.31%). Our results indicated that they have potential to be used as novel source of antibacterial and antioxidant agents.
URI
http://repository.kopri.re.kr/handle/201206/7316
DOI
http://dx.doi.org/10.5897/AJMR2014.6970
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