摘要 |
Compositions comprising a compound of formula I <IMAGE> where R and R' are independently selected from hydrogen and alkyl of 1 to 4 carbon atoms, R'' is a moiety selected from the group consisting of (a) hydrogen, (b) a halogen atom selected from the group consisting of F, Cl, Br, and I, and (c) a nitro group, or the hydrochloride salt of said compound; and at least one preservative are disclosed which are synergistically effective compared to the respective components alone in controlling and/or reducing the growth of microorganisms in or on a material or medium. Methods to control and/or reduce the growth of microorganisms and prevent spoilage caused by microorganisms with the use of the compositions of the present invention are also disclosed. |