Synthesis and characterization of dithiocarbamate chitosan derivatives with enhanced antifungal activity.
Synthesis and characterization of dithiocarbamate chitosan derivatives with enhanced antifungal activity.
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DOI：
10.1016/j.carbpol.2012.03.018
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发表时间：
2012-06
影响因子：
11.2
通讯作者：
Yukun Qin;Song Liu;R. Xing;Huahua Yu;Kecheng Li;Xiangtao Meng;Rongfeng Li;Pengcheng Li
中科院分区：
文献类型：
--
作者：
Yukun Qin;Song Liu;R. Xing;Huahua Yu;Kecheng Li;Xiangtao Meng;Rongfeng Li;Pengcheng Li
In this study, ammonium dithiocarbamate chitosan (ADTCCS) and triethylene diamine dithiocarbamate chitosan (TEDADTCCS) derivatives were obtained respectively by mixing chitosan with carbon disulfide and ammonia (triethylenediamine). Their structures were confirmed by FT-IR,1H NMR, XRD, DSC, SEM, and elemental analysis. Antifungal properties of them against the plant pathogenic fungi Fusarium oxysporum and Alternaria porri were investigated at concentrations ranged from 31.25 to 500mg/L. The dithiocarbamate chitosan derivatives had enhanced antifungal activity compared with chitosan. Particularly, they showed obvious inhibitory effect on Fusarium oxysporum. At 500mg/L, TEDADTCCS inhibited growth of F. oxysporum at 60.4%, stronger than polyoxin and triadimefon whose antifungal indexes were found to be 25.3% and 37.7%. The chitosan derivatives described here deserve further study for use in crop protection.
