Synthesis, characterization and antifungal efficacy of chitosan derivatives with triple quaternary ammonium groups

Liu, Weixiang; Qin, Yukun; Liu, Song; Xing, Ronge; Yu, Huahua; Chen, Xiaolin; Li, Kecheng; Li, Pengcheng

Synthesis, characterization and antifungal efficacy of chitosan derivatives with triple quaternary ammonium groups

2018

A novel type of water soluble chitosan derivatives (TQCSPX) were synthesized including 3-aminopyridine (TQCSP1) and 3-Amino-4-methylpyridine (TQCSP2). The theoretical structures of TQCSPX were calculated by Gaussian 09 and confirmed by FT-IR, 1H NMR, 13C NMR, elemental analysis and XRD. The antifungal properties of TQCSPX against Phytophthora capsici (P. capsici), Rhizoctonia solani (R. solani), Fusarium oxysporum (F. oxysporum) and Fusarium solani (F. solani) were evaluated at concentrations ranging from 0.2mg/mL to 0.8mg/mL. Antifungal results indicated that the derivatives have significantly enhanced antifungal activity after quaternized compared with the original chitosan (CS). Moreover, TQCSP1 inhibited the growth of P. capsici with inhibitory indices of 91.94% at 0.8mg/mL. The experimental results demonstrated that the increasing number of the positive charge would improve the antifungal efficiency of chitosan, which may provide a novel direction for the development of fungicides.

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Mots clés AGROVOC

antifungal properties chitosan fungicides fusarium oxysporum fusarium solani nuclear magnetic resonance spectroscopy phytophthora capsici quaternary ammonium compounds stable isotopes thanatephorus cucumeris

Informations bibliographiques

Publié dans

International journal of biological macromolecules

ISSN 0141-8130

Editeur

American Society of Agricultural and Biological Engineers (ASABE)

D'autres materias

3-aminopyridine (pubchem cid: 10009); Sodium iodide (pubchem cid: 5238); Iodomethane (pubchem cid: 6328); Fourier transform infrared spectroscopy; Acetone (pubchem cid: 180); Acetylacetone (pubchem cid: 31261); Ethanol (pubchem cid: 702); Acetic acid (pubchem cid: 176); Monochloroacetic acid (pubchem cid: 300); Aminopyridine; Water solubility; Sodium hydroxide (pubchem cid: 14798); Antifungal; Chitosan (pubchem cid: 71853); N-methyl-2-pyrrolidone (pubchem cid: 13387); X-ray diffraction; Quaternized chitosan; 3-amino-4-methylpyridine (pubchem cid: 137935)

Langue

anglais

Type

Journal Article; Text

Sur AGRIS depuis: 2024-02-27

Format: MODS

Fournisseur de données

Cette notice bibliographique a été fournie par National Agricultural Library

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Liens

DOI https://dx.doi.org/10.1016/j.ijbiomac.2018.03.179

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