To give you an example of what I mean, let me share with you a conversation we had tonight. If you have a weak stomach with topics related to diapers or if you really love popcorn, please disregard this post.
Amy, "You know, I've decided that Hanna's dirty diapers smell a lot like microwave popcorn."
Devin, "Well, that's because one of the major scent compounds in buttered popcorn and dirty diapers is the same thing."
Amy, "What? Seriously. What?"
Devin, "I am serious. Butyric acid is a major scent component of baby poo and it is also in buttered popcorn. Along with diacetyl, butyric acid gives the popcorn it's distinctive flavor."
He went into much more of an explanation, including the history of buttered theatre popcorn and what they use to flavor their popcorn with these days, than I am going to post here, but if you are interested, just let me know.
This is the chemical structure of butyric acid.
Devin assures me it is just the smell that is the same, the taste would not be at all similar, because the flavor compounds are different in popcorn and baby poo. Rest assured on that. (Devin also wants me to mention that baby poo will probably make you sick. Do not eat it.)
And, just out of curiosity, have any other mothers noticed this similarity in smell? I think I only noticed it because I haven't had microwave popcorn in years but I recently enjoyed a bag. So I of course, smelled it then. I also haven't changed a newborn's diaper in years, but I am recently enduring that as well, and am definitely smelling it...