Maybe a misspelling of the word "tryptophan"?
Eggs are high in tryptophan which is metabolised into meltonin this is the bodies natural sleepiness drug. This is enchanced when the trypotophan is consumed with carbohydrates like bread.
The smell is from gas produced by bacteria breaking down the organic waste.Several chemicals are responsible for the unpleasant smell including:methyl mercaptan (one of the strongest parts of the smell of "flatus", aka farts - also present in skunk spray - naturally present in some nuts and cheeses but also a byproduct of digestion)dimethyl sulfide (especially if you've been eating cabbage)dimethyl disulfide (especially associated with garlic, meat and some cheeses and soups)dimethyl trisulfide (broccolli, cabbage, leeks, onions)indole (from digesting foods with tryptophan like eggs, cheddar cheese, pork, chicken, turkey, beef, fish, etc.) - really strong fecal smellskatole (byproduct of trypotophan metabolism - intensifies odors - can make you gag) - makes the smell of feces strongerhydrogen sulfide (rotten egg gas) - actually lethally poisonous in higher concentrations; comparable in toxicity to carbon monoxide
They are a source of iron, potassium, and lots of other stuff. Bananas can help overcome or prevent substantial number of illness and conditions like in depression, PMS, anemia, blood pressure, constipation, heatburn, etc. making it a must add to your daily diet.