期刊
MEAT SCIENCE
卷 181, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.meatsci.2021.108613
关键词
Meat biopreservation; Natural antimicrobial; Protective culture; Lamb spoilage; Modified atmosphere packaging; Vacuum packaging
资金
- Australian Meat Processor Corporation [20161438]
- Australian Government Research Training Program Scholarship
The study showed that using protective cultures to inhibit spoilage bacteria is a promising natural preservation technique to extend the shelf-life of fresh meat. Protective cultures demonstrated greater inhibitory effects in vacuum-packed lamb, with mixed cultures containing specific strains causing the most significant reductions.
The use of protective cultures to inhibit spoilage bacteria is a promising natural preservation technique to extend the shelf-life of fresh meat. This study evaluated the effectiveness of six food-grade protective cultures (containing different combinations of Lactobacillus sakei, Pediococcus pentosaceus, Staphylococcus xylosus, and Staphylococcus carnosus) on naturally contaminated chill-stored (4 degrees C) lamb meat in different packaging systems. Only slight reductions of common meat spoilage bacteria Brochothrix thermosphacta, Pseudomonas spp., and Entero-bacteriaceae were observed in culture-treated samples stored in modified atmosphere packaging (80% O-2:20% CO2). Greater inhibitory effects were found in vacuum-packed lamb, with mixed cultures containing either L. sakei, S. carnosus, and S. xylosus or S. carnosus and L. sakei causing the most significant reductions. Protective cultures did not adversely affect meat color or pH. This study demonstrated the potential of protective cultures comprising lactic acid bacteria and coagulase-negative staphylococci in controlling microbial spoilage of lamb and, by inference, other types of meat as a natural solution for shelf-life extension.
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