Polysaccharides are widely available, inexpensive and versatile polymer having good
stability, safety, low biotoxicity, hydrophilicity, gelling ability, flexibility for chemical
modification and biodegradability, which offer a vista of drug delivery applications. There are
number polysaccharides like chitosan, chondroitin sulfate, dextrans, cyclodextrins, guar
gum, pectin, inulin, etc., which have been exploited for colon-specific delivery. This chapter
summarizes various polysaccharides and approaches based on microflora and pH for …