Inhibitory effect of dairy products on the mutagenicities of chemicals and dietary mutagens

Abstract
Summary: The antimutagenic effects of uninoculated milk and milks cultured withBifidobacteriumorLactobacillusstrains towards the mutagenicity induced by two direct mutagens, 4-nitroquinolineN-oxide and 2-nitrofluorene, and three dietary indirect mutagens, aflatoxin B1, benzo(a)pyrene and quercetin, were investigated using thein vitro Salmonella typhimuriumtest. Each cultured milk sample and control milk had a significant antimutagenic effect, to an extent varying with the mutagen used. Uninoculated milk had a greater inhibitory effect than cultured milks towards dietary indirect mutagens.