Inactivation of <i>Salmonella</i> Typhimurium, <i>Escherichia coli</i>, and <i>Staphylococcus aureus</i> in Tilapia Fillets (<i>Oreochromis niloticus</i>) with Lactic and Peracetic Acid through Fogging and Immersion
Matheus Barp Pierozan,
Jordana dos Santos Alves,
Liege Dauny Horn,
Priscila Alonso dos Santos,
Marco Antônio Pereira da Silva,
Mariana Buranelo Egea,
Cíntia Minafra,
Leandro Pereira Cappato,
Adriano Carvalho Costa
Affiliations
Matheus Barp Pierozan
Campus Rio Verde, Instituto Federal Goiano, Rio Verde 75901-970, Brazil
Jordana dos Santos Alves
Campus Rio Verde, Instituto Federal Goiano, Rio Verde 75901-970, Brazil
Liege Dauny Horn
Campus Rio Verde, Instituto Federal Goiano, Rio Verde 75901-970, Brazil
Priscila Alonso dos Santos
Campus Rio Verde, Instituto Federal Goiano, Rio Verde 75901-970, Brazil
Marco Antônio Pereira da Silva
Campus Rio Verde, Instituto Federal Goiano, Rio Verde 75901-970, Brazil
Mariana Buranelo Egea
Campus Rio Verde, Instituto Federal Goiano, Rio Verde 75901-970, Brazil
Cíntia Minafra
Campus Samambaia, Universidade Federal de Goiás, Goiânia 74605-450, Brazil
Leandro Pereira Cappato
Campus Rio Verde, Instituto Federal Goiano, Rio Verde 75901-970, Brazil
Adriano Carvalho Costa
Campus Rio Verde, Instituto Federal Goiano, Rio Verde 75901-970, Brazil
This study investigated the antimicrobial effects of lactic acid (LA) (3%) and peracetic acid (PA) (300 ppm) on tilapia fillets (Oreochromis niloticus) by fogging (15 min) or by immersion (2 s) in a pool of Escherichia coli (NEWP 0022, ATCC 25922, and a field-isolated strain), Staphylococcus aureus (ATCC 25923 and a field-isolated strain), and Salmonella Typhimurium (ATCC 13311 and ATCC 14028), as well as the effects on the physicochemical characteristics of the fillets. Fogging was effective and the best application method to control S. Typhimurium regardless of the acid used, promoting reductions of 1.66 and 1.23 log CFU/g with PA and LA, respectively. Regarding E. coli, there were significant reductions higher than 1 log CFU/g, regardless of the treatment or acid used. For S. aureus, only immersion in PA showed no significant difference (p S. Typhimurium, E. coli, and S. aureus in tilapia fillets.
