Question

In which of the following, putrefying bacteria is present
A. Intestine
B. Colon
C. Stomach
D. Liver

Answer 1

Hint:- Putrefaction is the biological process which involves the decomposition or fermentation of undigested proteins by micro bacteria within the body. The dietary proteins that escape digestion in the small intestine and reach the distal intestine, act as substrates for bacterial fermentation.

Complete answer:
Putrefaction as mentioned above is the decomposition of proteins by the bacteria or fungus those are already present in our colon. The bacteria, yeast, and other microorganisms like fungus in the fermented food allow the colon to produce good bacteria. In carbohydrates fermentation the fiber and resistant starches that reach our colon results in beneficial effects because of the generation of short chain fatty acids like butyrate, whereas protein fermentation is considered detrimental. The fermented food increases vitamin B such as niacin, thiamine, riboflavin etc. Protein fermentation mainly occurs in the lower end of the colon and results in the production of potentially toxic metabolites. The folic acid in its activated form is increased which results in cardiovascular or cancer diseases. To reduce the potential harm of protein fermentation is to reduce dietary protein intake. The damage made by putrefaction in the colon of the intestine can be reversed by butyrate. Also fermentation increases glutathione, an enzyme needed for digestion and detoxification and an anti-aging amino acid.

Note:- The bacteria that live in the colon are of the genus Bacteroides, clostridium, lactobacillus, obligate anaerobes and gram positive cocci. These are the bacteria which are found in our gut and help in the putrefaction process which result in production of foul-smelling matter.