The raffinose family of oligosaccharides —
including stachyose and verbascose — occurs in seeds of food legumes at levels that cause flatulence in man and animals.
In addition to high levels of protein, vitamins and minerals, dry beans are full of the complex plant
sugars stachyose and raffinose.
By doing so, you are discarding some of those amazing nutrients discussed above, but you also are discarding flatulence - related substances like raffinose, and
stachyose.
Beans contain a class of carbohydrates called Oligosaccharides (e.g. raffinose and
stachyose), some of which can not be processed by our digestive system.
- D - Galactosides including raffinose and
stachyose are ubiquitously found in vegetables such as broccoli and asparagus, beans, and whole grains.
Carbohydrates in soy generally constitute 30 percent of the bean and break down into soluble sugars of sucrose (5 percent),
stachyose (4 percent), raffinose (1 percent) and insoluble fiber (20 percent).
Then there's galactans, a combination of raffinose and
stachyose, which function very similarly.
Instead, oligosaccharides such as raffinose and
stachyose are broken down by bacterial fermentation in the intestines [13].
They are commonly known as raffinose (1 galactosyl unit),
stachyose (2 galactosyl units), and verbascose (3 galactosyl units).