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Journal of Biosciences

, Volume 35, Issue 4, pp 533–538 | Cite as

Antibacterial abietane-type diterpenoid, taxodone from Metasequoia glyptostroboides Miki ex Hu

  • Vivek K. Bajpai
  • Sun Chul KangEmail author
Brief Communication

Abstract

In an attempt to isolate bioactive constituents, ethyl acetate cone extract of Metasequoia glyptostroboides was subjected to a column chromatographic analysis that resulted in isolation of an abietane-type diterpenoid, taxodone. Its structure was elucidated by spectroscopic means. Further, taxodone showed potential antibacterial effect as diameters of zones of inhibition against foodborne pathogenic bacteria, such as Listeria monocytogenes ATCC 19166, Salmonella typhimurium KCTC 2515, S. enteritidis KCTC 2021, Escherichia coli ATCC 8739, E. coli O157:H7 ATCC 43888, Enterobacter aerogenes KCTC 2190, Staphylococcus aureus ATCC 6538 and S. aureus KCTC 1916, were found in the range of 9.4 to 14.2 mm. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) values of taxodone against the employed bacterial pathogens were found in the range of 250 to 1000 and 250 to <2000 µg/ml, respectively. Also the compound had a strong antibacterial effect on the viable counts of the tested bacteria. These findings indicate that the bioactive compound taxodone present in M. glyptostroboides could be used as an antibacterial agent in food industry to inhibit the growth of certain important foodborne pathogens.

Keywords

Antibacterial activity diterpenoid foodborne pathogens Metasequoia glyptostroboides taxodone 

Abbreviations used

DMSO

dimethylsulphoxide

KFDA

Korea Food and Drug Administration

LB

Luria-Bertani

MBC

minimum bactericidal concentration

MIC

minimum inhibitory concentration

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Copyright information

© Indian Academy of Sciences 2010

Authors and Affiliations

  1. 1.Department of BiotechnologyDaegu UniversityKyoungsan, KyoungbookRepublic of Korea

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