“…Thus, lots of effort has been put to develop reliable and safe alternative routes to produce specific forms of CS (Kim, Yang, Park, & Boons, ). Recently, many studies have been conducted to extract CS from Prionace glauca (Vazquez, Blanco, Fraguas, Pastrana, & Perez‐Martin, ), Chinese sturgeon cartilage (Zhao et al, ), fish bone (He et al, ), and skate cartilage (Lignot, Lahogue, & Bourseau, ). In addition, several chemical methods for synthesis of chondroitin (Kobayashi, Fujikawa, & Ohmae, ; Lopin & Jacquinet, ; Sears & Wong, ), CS and its oligosaccharides (Eller, Collot, Yin, Hahm, & Seeberger, ; Lubineau & Bonnaffé, ) have been established.…”