b-L-阿拉伯糖, b-L-Arabinopyranose

b-L-Arabinopyranose is a monosaccharide that is found in exudates, melibiose, and radiation hydrolysate. It has been shown to be hydrolyzed by intestinal enzymes and to have an optimum pH of 5.5. b-L-Arabinopyranose also has a high degree of polymerization (DP) and can form five-membered rings with galactans as well as terminal residues that are resistant to hydrolysis by carbon tetrachloride.