if the medium is inoculated, incubated and then observed to produce a pink result this indicates an alkaline condition caused by deamination. So reading carbohydrate fermentation test can be unreliable if "reversion has occurred. Why?
fermentation test would have a unrliable test result due to "reversion" because when reversion occurs there is a phenomenon of a microorganism fermentively depleting the carbohydrate and reverting to amino acid metabolism, thereby neutralizing acid products with alkaline products; produces a false negative. So a