The Hartmann procedure involves resection of the rectosigmoid colon with creation of a colostomy. It was first described by Henri Albert Hartmann at the 30th Congress of the French Surgical Association in 1921.
Propionic acid (from the Greek words protos, meaning first, and pion, meaning fat; also known as propanoic acid) is a naturally occurring carboxylic acid with chemical formula C H 3 CH 2 C O OH.acteria of the genus Propionibacterium produce propionic acid as the end-product of their anaerobic metabolism. This class of bacteria is commonly found in the stomachs of ruminants and the sweat glands of humans, and their activity is partially responsible for the odor of both Swiss cheese and sweat.
Acetic acid, also known as ethanoic acid and methanecarboxylic acid, is a colorless liquid that has a strong and distinct pungent and sour smell. Its chemical formula is C2H4O2: it has two carbon (C) atoms, four hydrogen (H) atoms and two oxygen (O) atoms.t is an organic compound that is classified as a carboxylic acid because a carboxyl (-COOH) group is present in its chemical structure. Acetic acid is also known as the second simplest carboxylic acid.