Author(s): Dias, Igor ; Laranjo, Marta ; Potes, Maria Eduarda ; Agulheiro-Santos, Ana Cristina ; Ricardo-Rodrigues, Sara ; Fraqueza, M. J. ; Oliveira, Margarida ; Elias, Miguel
Date: 2022
Persistent ID: http://hdl.handle.net/10400.5/24814
Origin: Repositório da Universidade de Lisboa
Subject(s): Dry-fermented sausages; Paio do Alentejo; Food safety; Starter cultures; Biogenic amines; Foodborne pathogens; Food quality
ABSTRACT - Paio do Alentejo (PA) is one of the most popular dry-fermented sausages in Portugal. The aim of the present work was to evaluate the effect of a high concentration of starter cultures with an extended fermentation step on the safety and quality of PA. Physicochemical parameters, microbiological parameters, biogenic amines, colour, texture profile, and sensory attributes were assessed. Five starters were selected based on our previous works. Staphylococcus equorum S2M7, Staphylococcus xylosus CECT7057, Lactobacillus sakei CV3C2, Lactobacillus sakei CECT7056, and a yeast strain (2RB4) were co-inoculated in meat batters at a concentration of 108 cfu/g for bacteria and 106 cfu/g for yeast strain, and 0.25% dextrose was added. Inoculated starters significantly reduced pH, Listeria monocytogenes counts, and total content in biogenic amines. The studied starter cultures did not compromise the sensory characteristics of PA, and thus, their use can be considered to protect these sausages and contribute to their safety
