1 Changes in stool color may be due to diarrhea; bleeding in the intestine; diseases of the intestines, liver, or pancreas; and medications. 2  Diagnosis when stool color changes depends on what process is suspected of causing the change, for example, gastrointestinal (GI) endoscopy if bleeding is supsected.n most cases, stool color changes are not symptoms of disease. Changes in stool color may be due to: 1  Diarrhea may cause green or yellow stools. 2  Some foods (beets, Jell-O, licorice).
The Maillard Reaction. One of the most important flavor-producing reactions in cooking is the Maillard reaction. It is sometimes called the âbrowning reactionâ in discussions of cooking, but that description is incomplete at best.
Sabatier reaction. The Sabatier reaction or Sabatier process was discovered by the French chemist Paul Sabatier in the 1910s. It involves the reaction of hydrogen with carbon dioxide at elevated temperatures (optimally 300â400 Â°C) and pressures in the presence of a nickel catalyst to produce methane and water.