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The biological effect of a beef‐derived Latilactobacillus sakei on beef steaks during chilled storage.

Authors :
Yang, Huixuan
Luo, Xin
Zhu, Lixian
Liang, Rongrong
Mao, Yanwei
Yang, Xiaoyin
Niu, Lebao
Zhang, Yimin
Dong, Pengcheng
Source :
Food Science & Nutrition; Feb2023, Vol. 11 Issue 2, p1059-1072, 14p
Publication Year :
2023

Abstract

The aim of this study was to investigate the biological inhibiting effect of a beef‐derived Latilactobacillus sakei (RS‐25) on the spoilage of beef steaks in overwrapped packaging during the 12 days of storage at 4°C. Beef quality as well as microbial indicators were determined at different intervals during the storage after the inoculation of RS‐25 at the 6 log CFU/g, and the high‐throughput sequencing was applied to investigate the changes of microbial community structure during the storage. The inoculation of RS‐25 on beef had no effect (p >.05) on pH, TBARS, and TVB‐N during storage indicating the weak effect of such strain on the eat quality. Furthermore, the rise of L* and the delayed decline of a* and b* reveal the protection effect of RS‐25 on the meat color. RS‐25 reduced the re‐contaminated Salmonella typhimurium by 1.16 log CFU/g (p <.01), and the growth of Brochothrix thermosphacta was also inhibited but no inhibition was found on the Pseudomonas spp. at the first 6 days of storage. The inhibiting effect of RS‐25 was covered by the rapid growth of other microorganism during the following 6 days of storage. Consistent with the microbial counts results, high‐throughput sequencing analysis confirmed that the inoculated L. sakei RS‐25 was dominant at first 6 days, and then replaced by Pseudomonas spp. The findings obtained from the current study may provide basic information for the further application of bioprotective bacteria in preservation of beef steaks in the overwrapped packaging. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
20487177
Volume :
11
Issue :
2
Database :
Complementary Index
Journal :
Food Science & Nutrition
Publication Type :
Academic Journal
Accession number :
161826200
Full Text :
https://doi.org/10.1002/fsn3.3143