gave an enhanced reduction of E. coli O157:H7. However, most of
the effect appeared to be due to injury of the cells rather than
killing (Al-Nabulsi & Holley, 2007). An additional one log10
reduction in E. coli O157:H7 has also been obtained by addition
of 300 ppm diacetyl to the sausage batter (Kang & Fung, 1999a).