Nakasugi T, Murakawa T, Shibuya K, Morimoto M Journal of Oleo Science, 2017 ABSTRACT: A deodorizing substance in black cumin (Nigella sativa L.), a spice for curry and vegetable foods in Southwest Asia, was examined. The essential oil prepared from the seeds of this plant exhibited strong deodorizing activity against methyl mercaptan, which is a main factor in oral malodor…. Read more »