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KMID : 0525720140190030205
Journal of Chitin and Chitosan
2014 Volume.19 No. 3 p.205 ~ p.211
Antifungal Activity of Medium Molecular Weight Chitosan Derived from the High Molecular Weight Chitosan on Penicillium italicum
Yoo Ah-Young

Park Jae-Kweon
Abstract
The aim of this study was to evaluate the antifungal activity of chitosans with different molecular weight against Penicillium italicum which is known as a pathogenic fungus in citrus fruits. Antifungal activity of various molecular weight of chitosans was observed in morphological changes using microscope and was defined in disc diffusion assay. The result showed that various molecular weight of chitosan raging from 3 to 7 kDa completely inhibits the spore germination of P. italicum. These results indicate that medium size of chitosan can be used as a natural antifungal agent to control blue mold in postharvest citrus fruits.
KEYWORD
Penicillium iatlicum, Chitosan, Molecular weight, Citrus fruits
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