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Molecules  2012 

Extraction and Characterization of Chitin from the Beetle Holotrichia parallela Motschulsky

DOI: 10.3390/molecules17044604

Keywords: insect, chitin, Holotrichia parallela, characterization, extraction

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Insect chitin was isolated from adult Holotrichia parallela by treatment with 1 M HCl and 1 M NaOH, following by 1% potassium permanganate solution for decolorization. The yield of chitin from this species is 15%. This insect chitin was compared with the commercial a-chitin from shrimp, by infrared spectroscopy, X-ray diffraction, scanning electron microscopy, and elemental analysis. Both chitins exhibited similar chemical structures and physicochemical properties. Adult H. parallela is thus a promising alternative source of chitin.


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