KOPRI Repository

Antibacterial and Antioxidant Capacity of Polar Microorganisms Isolated from Arctic Lichen Ochrolechia sp.

Cited 4 time in scopus
Metadata Downloads
Title
Antibacterial and Antioxidant Capacity of Polar Microorganisms Isolated from Arctic Lichen Ochrolechia sp.
Authors
Kim, Mi-Kyeong
Oh, Tae-Jin
Park, Hyun
Keywords
Arctic; Antibacterial/antioxidant activity; Bacterial association; Lichen; Ochrolechia sp
Issue Date
2014
Citation
Kim, Mi-Kyeong, Oh, Tae-Jin, Park, Hyun. 2014. "Antibacterial and Antioxidant Capacity of Polar Microorganisms Isolated from Arctic Lichen Ochrolechia sp.". Polish Journal of Microbiology,, 63(3): 317-322.
Abstract
Although many scientists have been studying lichens, the bacterial communities among lichens have not been fully explored. In this study, the biological activities of bacterial isolates from Arctic lichen Ochrolechia sp. were screened. Cell cultures were extracted using ethyl acetate, and these cultures were tested for antibacterial and antioxidant activities. To evaluate the antibacterial activities, we carried out a disk diffusion test and minimum inhibitory concentration assay. The inhibition zone diameter (mm) was 8 to 12, and its MIC value ranged from 222.0 to > 1000 μg/ml (control antibiotic ampicillin ranged from 0.31 to 0.58 μg/ml). PAMC26625 (Sphingomonas sp., sequence similarity: 99.108%) showed a high amount of total phenolic and total flavonoid contents within 5 extracts and also exhibited 77.23% and 80.02% in the 1,1-diphenyl-2-picryl-hydrazyl assay and the 2,2’-azino-bis(3-ethyl benzothiazoline-6-sulphonic acid) assay, respectively. In the ferric reducing antioxidant power assay, it was determined that PAMC26625 contained a higher amount of ferrous ion [8.72 mM Fe(II)/mg extract] than control ascorbic acid [6.21 mM Fe(II)/mg extract]. Our data indicated that they had potential to be novel sources of antibacterials and antioxidants.
Files in This Item
General Conditions
      ROMEO Green
    Can archive pre-print and post-print or publisher's version/PDF
      ROMEO Blue
    Can archive post-print (ie final draft post-refereeing) or publisher's version/PDF
      ROMEO Yellow
    Can archive pre-print (ie pre-refereeing)
      ROMEO White
    Archiving not formally supported

    qrcode

    Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

    Browse