Raffinose legume

Members of the raffinose family of oligosaccharides are present in appreciable concentrations in the nutritionally important food-legumes these are known to cause flatulence in man and other animals. Blair and coworkers144" quantitated the production of flatus in man,... 

Occurrence in plants used for human and animal food is very common, so the raffinose oligosaccharides may be of some nutritional significance. For example, the seeds of food legumes often contain raffinose in amounts equal to or greater than the amounts of sucrose. Cottonseed and soybean meals (after oil extraction) are fairly rich in raffinose and stachyose, respectively.80 86... 

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. 

Raffinose occurs naturally in Australian manna, cottonseed meal, and seeds of various food legumes. It can be isolated from beet sugar molasses through sucrose separation, seed-crystallization, and filtration. ... 

However, legumes and oilseeds often contain various antinutri-tional factors or even toxic substances. Examples of such substances are different allergens, protease inhibitors, lectins, saponins, indigestible sugars such as raffinose and its homologues, phytic acid and others (see Section 10.3.2.6). 

Raffinose a-D-Galp-(1—>6)-a-D-Glcp-(1-e 2)-p-D-Fruf Sugar beet, legumes, grapes ... 

Legumes Latin name Saccharose Raffinose Stachyose Verbascose... 

Raffinose Galal ->6Glca1 — 2Fru/3 Legume seeds Yes... 

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