A process of removing microorganism from an article of clothing is provided in which the process comprises the steps of a) providing an article of clothing in a washing machine; and b) contacting the article of clothing during a wash sub-cycle of the washing machine with a liquid detergent composition comprising a surfactant system and an organic acid, wherein the composition has a neat pH of from 1.5 to 5.0.

Disclosed are compositions containing:at least one N-alkyl-N-acyl glucamine as component A;at least one fatty acid and/or soap as component B;at least one acyl isethionate as component C;sodium isethionate as component D;water as component E; andoptionally, at least one other additive as component F. More than 20 weight percent, preferably more than 70 weight percent of the N-alkyl-N-acyl glucamines contain at least one C.sub.12- and/or C.sub.14- and/or C.sub.16- and/or C.sub.18-acyl group. Said compositions can be used as bars of soap.