physicochemical and functional properties of crawfish chitosan as ...

The shell was almost impossible to be washed because the filter mesh's holes were all
clogged by the transformed gel-like product.
4.1.2 Formation of a White Unidentified Mass
When the gel-like mass was transferred to a beaker containing acetone for decoloration, it
immediately transformed into a white mass of cotton ball (Figure 6).
Figure 6. Formation of White Unidentified Mass
4.1.3 Disappearance and Poor Yield
When the mass was washed with tap water, it dissolved swiftly leaving very small
amounts of mass (0.34g out of 100g shell powders) with varying particle size (Figure 7).
Thus, it can perhaps be assumed that this unknown mass is a product of depolymerization.
Figure 7. Poor Production Yield
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