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      Comparison of antimicrobial activities of newly obtained low molecular weight scorpion chitosan and medium molecular weight commercial chitosan.

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          Abstract

          In this study the antimicrobial activity of low molecular weight (3.22 kDa) chitosan, obtained for the first time from a species belonging to the Scorpiones, was screened against nine pathogenic microorganisms (seven bacteria and two yeasts) and compared with that of medium molecular weight commercial chitosan (MMWCC). It was observed that the antimicrobial activity of the low molecular weight scorpion chitosan (LMWSC) was specific to bacterial species in general rather than gram-negative or gram-positive bacterial groups. It was also determined that LMWSC had a stronger inhibitory effect than the MMWCC, particularly on the bacterium Listeria monocytogenes and the yeast Candida albicans, which are important pathogens for public health. In addition, it was recorded that the MMWCC had a greater inhibitory effect on Bacillus subtilis than LMWSC. According to the results obtained by the disc diffusion method, the antibacterial activity of both LMWSC and MMWCC against B. subtilis and Salmonella enteritidis was higher than the widely used antibiotic Gentamicin (CN, 10 μg/disc).

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          Author and article information

          Journal
          J. Biosci. Bioeng.
          Journal of bioscience and bioengineering
          1347-4421
          1347-4421
          Jun 2016
          : 121
          : 6
          Affiliations
          [1 ] Department of Biotechnology and Molecular Biology, Faculty of Science and Letters, Aksaray University, 68100 Aksaray, Turkey. Electronic address: muratkaya3806@yahoo.com.
          [2 ] Department of Biotechnology and Molecular Biology, Faculty of Science and Letters, Aksaray University, 68100 Aksaray, Turkey. Electronic address: meltemozusaglam@gmail.com.
          [3 ] Fisheries Programme, Keşan Vocational College, Trakya University, 22800 Keşan, Edirne, Turkey. Electronic address: serdogantrakya@gmail.com.
          Article
          S1389-1723(15)00407-7
          10.1016/j.jbiosc.2015.11.005
          26702952
          75bf6c53-930e-468d-93e1-5277551a194a
          Copyright © 2015 The Society for Biotechnology, Japan. Published by Elsevier B.V. All rights reserved.
          History

          Antibacterial,Antifungal,Characterization,Chitosan,Molecular weight,Scorpion

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