ABSTRACT

Chitin is the second most abundant polysaccharide found in nature after cellulose. The name “chitin” is derived from the Greek word “chiton,” meaning a coat of a mail (Lower, 1984) or envelope (Tharanathan and Kittur, 2003). As the name implies, chitin is naturally found as the major structural component of the exoskeleton of invertebrates and in the cell walls of fungi. This linear

38.1 Introduction .......................................................................................................................... 543 38.2 Preparation of Chitooligosaccharides ................................................................................... 545

38.2.1 Chemical Preparation of COS ..................................................................................546 38.2.2 Enzymatic Preparation of COS ................................................................................546