Saccharolytic Fermentation Pathways

As a result of the fermentative reactions, some gases, including hydrogen, methane, and carbon dioxide, are generated
AsM et al. 2002 The Journal of Nutrition 132(10): 3098-3104

It is estimated that the fermentation of 50–60 g of Complex Carbohydrates per day yields the approximated production of 500–600 mmol of SCFAs in the gut
Bergman 1990 Physiol. Rev. 70: 567–590