Presence of aprX gene in Pseudomonas spp. from refrigerated raw milk and their proteolytic ability

• DOI: 10.5433/1679-0359.2020v41n4p1421
• Publication Date: 2020-06-02T17:33:51Z
• Authors: Rosana De Longhi; Samera Rafaela Br...; Josiane Ito Eleodoro; Regina Celia Poli...; Rafael Fagnani; Agostinho Ludovico; Elsa Helena Walte...
• Keywords: Pseudomonas fluorescens; Pseudomonas putida; Pseudomonadales; Proteolytic enzymes

This study aimed to determine the frequency of Pseudomonas fluorescens, P. putida, and aeruginosa in refrigerated raw milk; their proteolytic potential; your association with aprX gene. Of 173 isolates confirmed as belonging spp., 37% were 25.4% none belongs aeruginosa. The gene was distributed proportionally between putida (68%) fluorescens (75%), but it not associated low or high potential both species. (16) (14) no identified also had potential. Considering synthesis proteases other than AprX by under study, we concluded that represented 62.4% genus, probability having However, there deteriorating presence