On lean beef
tissues inoculated with L. monocytogenes ,
they showed that lactic acid (1.7% v/v)
immobilized in alginate reduced pathogen
counts by 1.3 log 10 CFU/g compared to a
0.03 log decrease from the acid treatment
alone. Similarly, acetic acid (2% v/v) reduced
counts by 1.5 (alginate) and 0.25 log 10 CFU/g,
respectively. Cutter and Siragusa (1996,
1997) investigated the impact of nisin alone
and nisin in calcium alginate gels as a surface
treatment antimicrobial on refrigerated beef
lean and adipose tissues inoculated with the
spoiler B. thermosphacta