E-Galactan of larch

Only one other naturally occurring galactan has been examined in any great detail this is the e-galactan of the larch.40 It contains D-galacto-... 

Lactose, phenylosotriazole, III, 38 a-Lactose, acetochloro-, I, 40, 41 Lactyl chloride, acetyl-, III, 367 Laminarin, IV, 275, 282 Langenbeck s formulation of enzymatic glycoside hydrolysis, V, 58 Larch, e-galactan of, II, 249 Larch manna. See Manna. 

The first structural study of the arabinogalactan or e-galactan from European larch was carried out by Campbell, Hirst, and Jones,126 who showed the polysaccharide to contain residues of D-galactose and L-arabinose in the proportion of 6 1. Fractionation of the methylated polysaccharide gave, as the main component, a methylated galactan containing... 

Further knowledge of the detailed structure of European-larch e-galactan has come from later investigations.126 127 In these studies, however, no evidence could be found for heterogeneity of the type previously encountered in the methylated derivative, and the e-galactan itself was ultracentrifugally homogeneous. 

---