Title: Bacterial community dynamics during cold storage of minced beef packaged under modified atmosphere and supplemented with different preservatives
Authors: Stoops, Jesse # ×
Ruyters, Stefan
Busschaert, Pieter #
Spaepen, Riet
Verreth, Christel #
Claes, Johan
Lievens, Bart #
Van Campenhout, Leen #
Issue Date: 2015
Publisher: Academic Press
Series Title: Food Microbiology vol:48 pages:192-199
Abstract: Since minced meat is very susceptible for microbial growth, characterisation of the bacterial community dynamics during storage is important to optimise preservation strategies. The purpose of this study was to investigate the effect of different production batches and the use of different preservatives on the composition of the bacterial community in minced meat during 9 days of cold storage under modified atmosphere (66% O2, 25% CO2 and 9% N2). To this end, both culture-dependent (viable aerobic and anaerobic counts) and culture-independent (454 pyrosequencing) analyses were performed. Initially, microbial counts of fresh minced meat showed microbial loads between 3.5 and 5.0 log cfu/g. The observed microbial diversity was relatively high, and the most abundant bacteria differed among the samples. During storage an increase of microbial counts coincided with a dramatic decrease in bacterial diversity. At the end of the storage period, most samples showed microbial counts above the spoilage level of 7 log cfu/g. A relatively similar bacterial community was obtained regardless of the manufacturing batch and the preservative used, with Lactobacillus algidus and Leuconostoc sp. as the most dominant microorganisms. This suggests that both bacteria played an important role in the spoilage of minced meat packaged under modified atmosphere.
ISSN: 0740-0020
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Bioengineering Technology TC, Technology Campus Geel
Technologiecluster Bioengineering Technologie
Bioengineering Technology TC, Technology Campus De Nayer Sint-Katelijne-Waver
Gynaecological Oncology
× corresponding author
# (joint) last author

Files in This Item:
File Description Status SizeFormat
1-s2.0-S0740002015000040-main.pdf Published 644KbAdobe PDFView/Open Request a copy

These files are only available to some KU Leuven Association staff members


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science