alexa A review of the antimicrobial activity of chitosan.
Dentistry

Dentistry

Journal of Oral Hygiene & Health

Author(s): Odilio B G Assis

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Chitosan, a versatile hydrophilic polysaccharide derived from chitin, has a broad antimicrobial spectrum to which gram-negative, gram-positive bacteria and fungi are highly susceptible. In the current review, three possible and accepted antimicrobial mechanisms for chitosan are presented and briefly discussed. The activity dependence on polymeric molecular weight (MW) and degree of acetylation (DA) are described. The chitosan minimum inhibitory concentrations (MIC) are summarized according to recent data found in the literature. The potential to improve inhibitory growth of bacteria by using water soluble chitosan derivatives is also discussed. The data indicate that the effectiveness of chitosan varies and is dependent on species of target microorganisms.

This article was published in Polimeros; Ciência e Tecnologia and referenced in Journal of Oral Hygiene & Health

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