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Purification and characterization of chitinases from the nematophagous fungi Verticillium chlamydosporium and V. suchlasporium.
Culture filtrates of the nematophagous fungi Verticillium chlamydosporium and V. suchlasporium growing on colloidal chitin showed increasing chitinolytic activity and production of two main proteins, and a single endochitinase (CHI43) with optimum pH range of 5.2-5.7 was found.
Comparative evaluation of antimicrobial activity of oligochitosans against Klebsiella pneumoniae
The results showed that the antibacterial activity of chitosan against Klebsiella pneumoniae was closely associated with its polycationic nature, and depended on the degree of protonation of the chitOSan amino groups, which, in turn was the function of the degrees of polymerization and the pH values of the medium.
Hydrophobically modified low molecular weight chitosans as efficient and nontoxic gene delivery vectors
Low molecular weight chitosans grafted at 3 and 18 mol% with N‐/2(3)‐(dodec‐2‐enyl)succinoyl groups (HM‐LMW‐ch) that exhibit surfactant‐like properties are used for gene delivery.
Anticoagulant activity of low-molecular-weight sulfated derivatives of galactomannan from Cyamopsis tetragonoloba (L.) seeds
Biospecific electrophoresis allowed us to detect the ability of galactomannan sulfates to form complexes with protamine sulfate, a classic antidote to heparin.