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Essay / Eggshell Analysis - 1160
Demineralization (DM), deproteinization (DP), decolorization and deacetyization are the basic steps in chitosan production; this process is expensive, thus limiting wider applications of chitosan. Simplifying chitosan production by eliminating the DM or DP step, or reducing the reaction time required for DM and DP (No et al., 2003) would significantly reduce production costs due to reducing chemical use, processing time and bulky wastewater discharges. . However, chitosan can be prepared in a simple method for certain uses, such as coating eggs. Because it does not require pure chitosan (No et al., 2005). There are two types of chitosan such as α-chitosan and β-chitosan depending on their origin (Kim et al., 2007). Chitosan is not dissolved in water or organic solvents, but it is soluble in dilute organic acids such as acetic acid and lactic acid and forms viscous solutions (Kim et al., 2006; Chen and Zhao, 2012). The sealing characteristics can vary depending on the molecular weight of chitosan (Bhale et al., 2003) and the type of solvent (Kim et al..,