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Home Q & A Board Biology-Related Homework Help Biochemistry
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nursing11 nursing11
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11 years ago
Flatulence is typically caused by the fermentation of dietary fibers (which are polysaccharides) in the colon with the formation of short-chain fatty acids and gases (carbon dioxide, methane, hydrogen). Then why does flatulence (e.g. from beans) sometimes result in the formation of massive amounts of odorous sulfurous gases (like hydrogen sulfide, organic thiols) when the source of the flatulence are the undigested polysaccharides which do not contain any sulfur?
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wrote...
#1
11 years ago
The bacteria in the intestines produce the sulfur by working on the undigested stuff.
wrote...
#2
11 years ago
They aren't pure polysaccharides. There are also proteins, and that includes sulfur-containing amino acids that the bacteria digest.
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