Galactomannans occurrence

The plentiful occurrence of these galactomannans in certain members of the legume family, and the widespread (perhaps universal) distribution of the raffinose oligosaccharides in legumes, make it tempting to suggest that there may be a close biogenetic relationship between these two types of saccharide. 

Cassia alata seeds. Several murine antigalactan immunoglobulins have been found to precipitate with willow-bark galactan, presumably by interaction with the (1 -> 6)-linked, non-reducing, D-galactopyranosyl end-groups of the polysaccharide. The chemistry of seed galactomannans has been reviewed, with sections devoted to their occurrence and function, structural aspects, the interactions with other polysaccharides, and commercial uses. ... 

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