KMID : 0525720140190030205
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Journal of Chitin and Chitosan 2014 Volume.19 No. 3 p.205 ~ p.211
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Antifungal Activity of Medium Molecular Weight Chitosan Derived from the High Molecular Weight Chitosan on Penicillium italicum
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Yoo Ah-Young
Park Jae-Kweon
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Abstract
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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.
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KEYWORD
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Penicillium iatlicum, Chitosan, Molecular weight, Citrus fruits
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