pH Effects on solubility, zeta potential, and correlation between antibacterial activity and molecular weight of chitosan

• Published in: Carbohydrate polymers Vol. 134; pp. 74 - 81
• Main Authors: Chang, Shun-Hsien, Lin, Hong-Ting Victor, Wu, Guan-James, Tsai, Guo Jane
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 10.12.2015
• Subjects: Anti-Bacterial Agents - chemistry; Anti-Bacterial Agents - pharmacology; Antibacterial activity; antibacterial properties; bacteria; Chitosan; Chitosan - analogs & derivatives; Chitosan - pharmacology; endo-1,4-beta-glucanase; Escherichia coli; Escherichia coli - drug effects; Escherichia coli Infections - prevention & control; Food Microbiology - methods; Humans; Hydrogen-Ion Concentration; Microbial Sensitivity Tests; Molecular Weight; Solubility; Staphylococcal Infections - prevention & control; Staphylococcus aureus; Staphylococcus aureus - drug effects; Static Electricity; temperature; ultrafiltration; water solubility; Zeta potential; Antibacterial activity; Chitosan; Zeta potential; Molecular weight; Solubility

•Six chitosans with molecular weights ranging from 3.3 to 300kDa were prepared.•Combined effects of chitosan MW, temperature, pH on bacterial growth were studied.•The pH effects on water solubility and zeta potential of chitosans were examined.•Positive correlation between chitosan ZP and antibacter...