abstract
Microbial contamination of peanut butter by Salmonella poses a significant health risk as Salmonella may
remain viable throughout the product shelf life. Effective cleaning and sanitation of processing lines are
essential for preventing cross-contamination. The objective of this study was to evaluate the efficacy of a
cleaning and sanitation procedure involving hot oil and 60% isopropanol, ± quaternary ammonium
compounds, to decontaminate pilot-scale processing equipment harboring Salmonella. Peanut butter
inoculated with a cocktail of four Salmonella serovars (~7 log CFU/g) was used to contaminate the
equipment (~75 L). The system was then emptied of peanut butter and treated with hot oil (90 C) for 2 h
Utilisation of broken rice and cocoyam flour blends in the production
of biscuits
L.C. Okpalan
, P.N. Egwuicle under the CC BY-NC-ND