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Antibacterial Activity: Shrimp Chitin vs Chemically Treated Chitosan   M. Masihul Alam,Abu Tareq Rachi and Abdullah Al Mamun

Antibacterial Activity: Shrimp Chitin vs Chemically Treated Chitosan

76 страниц. 2013 год.
LAP Lambert Academic Publishing
The study was conducted to compare the antibacterial activity of chemically deacylated chitin i.e. chitosan and chitin produced from shrimp shell (Macrobrachium rosenbergii). The antibacterial activity was tested against gram negative (Escherichia coli) bacteria, and gram positive (staphylococcus aureus) bacteria. To test the antibacterial activity we used institute of clinical laboratory standards (ICLS) approved dilution methods. The study was carried out by broth dilution method, and used turbidity estimations to determine the growth characteristics of a bacterial culture with or without chitin or chitosan. It was found that the antibacterial activity of chitosan was greater than chitin. Chitosan possess higher antibacterial activity against both types of bacteria, while chitin possess very lower activity. For staphylococcus aureus we found the average absorbance in every O.D value measured, staphylococcus aureus with chitin showed far higher absorbance than chitosan, indicates...
 
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