Ursolic acid extracted from loquat inhibits aflatoxin-induced mutagenicity. - GreenMedInfo Summary
Ursolic acid inhibits aflatoxin B1-induced mutagenicity in a Salmonella assay system.
Biol Pharm Bull. 1994 Jul;17(7):990-2. PMID: 8000393
Department of Pharmacy, Pusan National University, Korea.
An attempt was made to isolate the active component of Eriobotrya japonica, which inhibits aflatoxin B1-induced mutagenicity in the Salmonella assay system. The number of revertants per plate was significantly decreased when a MeOH extract of Eriobotrya japonica was added to the assay system using Salmonella typhimurium TA100 or TA98. Furthermore, we examined the effect of each fraction purified from the MeOH extract, and an EtOAc fraction was found to be the most effective. Ursolic acid isolated from the EtOAc fraction markedly and significantly decreased the numbers of Salmonella typhimurium TA100 revertants per plate, thus showing antimutagenic activity.