Document Detail


Antibacterial properties of chitosan in waterborne pathogen.
MedLine Citation:
PMID:  15328699     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The antimicrobial properties of chitosan, a derivative of chitin, were investigated in the solid and liquid culture against bacteria associated with waterborne disease in order to assess the potential for using chitosan as a natural disinfectant. Six strains which included three gram-negative and three gram-positive bacteria were studied. The effects of the deacetylation degree, concentration, and molecular weight of chitosan on antibacterial activities were assessed. Chitosan exhibited the highest antibacterial activity against the Pseudomonas aeruginosa on the solid agar. Similar tendency was found when the bacteria were cultivated in liquid broth. The higher deacetylation degree and higher concentration of chitosan cause the higher antibacterial activities. The effect of molecular weight of chitosan on the inhibition efficacy of bacteria is dependent on the species of bacteria. Escherichia coli is sensitive to chitosan during its death phase and logarithmic phase. The antibacterial mechanism of chitosan was illustrated by the surface charge and persistence length. Results indicated that chitosan is potential as a natural disinfectant.
Authors:
Yen-Meng Chen; Ying-Chien Chung; Li-Woan Wang; Kung-Tung Chen; Shyh-Yuan Li
Related Documents :
17216449 - Reactivation of aerobic and anaerobic ammonium oxidizers in oland biomass after long-te...
8809249 - An in vivo investigation of seating and removal forces associated with recording impres...
23272599 - Stand and be counted: the neo-darwinian synthesis and the ascension of bipedalism as an...
19043379 - Liposomal methotrexate hydrogel for treatment of localized psoriasis: preparation, char...
16085799 - Comparison between cultured small-intestinal and fecal microbiotas in beagle dogs.
2878999 - Direct measurements on individual microcapsule dissolution as a tool for determination ...
24531439 - Dynamic compression enhances pressure-to-pain threshold in elite athlete recovery: expl...
2302049 - Strength training in a cardiac rehabilitation program: a six-month follow-up.
15260459 - Determinants of the severity of exercise-induced bronchoconstriction in patients with a...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering     Volume:  37     ISSN:  1093-4529     ISO Abbreviation:  J Environ Sci Health A Tox Hazard Subst Environ Eng     Publication Date:  2002 Aug 
Date Detail:
Created Date:  2004-08-26     Completed Date:  2004-09-10     Revised Date:  2009-08-14    
Medline Journal Info:
Nlm Unique ID:  9812551     Medline TA:  J Environ Sci Health A Tox Hazard Subst Environ Eng     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1379-90     Citation Subset:  IM    
Affiliation:
Department of Industrial Engineering and Management, China Institute of Technology, Taipei City, Taiwan 115, R.O.C.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Chelating Agents / pharmacology*
Chitin / analogs & derivatives*,  pharmacology*
Chitosan
Disease Outbreaks / prevention & control*
Disinfectants / pharmacology*
Escherichia coli / pathogenicity*
Microbial Sensitivity Tests
Pseudomonas aeruginosa / pathogenicity*
Structure-Activity Relationship
Water Microbiology
Chemical
Reg. No./Substance:
0/Chelating Agents; 0/Disinfectants; 1398-61-4/Chitin; 9012-76-4/Chitosan

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Coagulation for treatment of paint industry wastewater.
Next Document:  Intracranial pyogenic abscess: imaging diagnosis utilizing recent advances in computed tomography an...