Microbial analysis and virulence genes detection of milk preserved using heat-assisted pulsed electric field.

ABSTRACT:

Objective

Microbial analysis in milk preserved using heat-assisted Pulsed Electric Field (PEF) need to be assessed. In this study we analyze the microbial quality and virulence-associated genes in milk samples preserved using heat-assisted PEF from several producers in Indonesia.

Results

Milk samples were collected consisting of raw milk, milks taken after the heating, PEF, mixing, cooling, and packaging. Microbiological and Polymerase Chain Reaction (PCR) detection for virulence genes were performed. Heat-assisted PEF treatment gave 2.7-7.47 log reduction for TPC; 1.6-2.56 log reduction for MPN number; 3.13-6.48 log reduction for S. aureus; and for B. cereus there was an increase of 0.76 log and a reduction of 0.46 log. While milk samples from thermal pasteurization gave lo

SUBMITTER: Yuliangsih S 

PROVIDER: S-EPMC8549208 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature