Journal
CARBOHYDRATE POLYMERS
Volume 54, Issue 4, Pages 527-530Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2003.07.009
Keywords
chitosan; antimicrobial activity; molecular weight; E. coli; Staphylococcus aureus
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E. coli and Staphylococcus aureus are used to study the antimicrobial activity of chitosan of different molecular weights (MW). The effect of the concentration and MW of chitosan were investigated, respectively, and the antimicrobial mechanism was discussed. For chitosan with MW below 300 kDa, the antimicrobial effect on S. aureus was strengthened as the MW increased. In contrast, the effect on E. coli was weakened. (C) 2003 Elsevier Ltd. All rights reserved.
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