Roy A, Mukherjee A K, Rao C V
Carbohydr Res. 1975 May;41:219-26. doi: 10.1016/s0008-6215(00)87020-2.
Graded hydrolysis of purified bael gum afforded three neutral and two acidic oligosaccharides, together with monosaccharides. These sugars were identified through periodate oxidation, methylation, reduction with lithium aluminum hydride, co-chromatography, and preparation of crystalline derivatives. The neutral oligosaccharides were characterized as 3-0-beta-D-galactopyranosyl-L-arabinose, 5-0-beta-D-galactopyranosyl-L-arabinose, and 3-0-beta-D-galactopyranosyl-D-galactose, and the acidic oligosaccharides as 3-0-(beta-D-galactopyranosyluronic acid)-D-galactose and 3-0-(beta-D-galactopyranosyluronic acid)-3-0-beta-D-galactopyranosyl-D-galactose.
对纯化的贝耳胶进行分级水解，得到了三种中性寡糖、两种酸性寡糖以及单糖。这些糖类通过高碘酸盐氧化、甲基化、用氢化铝锂还原、共色谱分析以及结晶衍生物的制备得以鉴定。中性寡糖的特征为3-O-β-D-吡喃半乳糖基-L-阿拉伯糖、5-O-β-D-吡喃半乳糖基-L-阿拉伯糖和3-O-β-D-吡喃半乳糖基-D-半乳糖，酸性寡糖的特征为3-O-(β-D-吡喃半乳糖醛酸)-D-半乳糖和3-O-(β-D-吡喃半乳糖醛酸)-3-O-β-D-吡喃半乳糖基-D-半乳糖。
