Removal of acetyl group from chitin is referred to as deacetylation of chitin. This process can be carried out using a concentrated alkaline solution at high temperature. During deacetylation, nucleophilic attack on carbonyl carbon by hydroxyl ions will result in removal of the acetyl group (Chang, Tsai, Lee, & Fu, 1997). Previous studies on deacetylation of chitin nanowhiskers have shown that the structure and morphology of the whiskers have not significantly change during the process (Antonio et al., 2014 and Phongying et al., 2007).