4.7 Article

A New Approach in Meat Bio-Preservation through the Incorporation of a Heteropolysaccharide Isolated from Lobularia maritima L.

期刊

FOODS
卷 11, 期 23, 页码 -

出版社

MDPI
DOI: 10.3390/foods11233935

关键词

polysaccharides; Lobularia maritima L; bioactive compounds; bio-preservation; foodborne pathogens

资金

  1. Deanship of Scientific Research at University of Bisha
  2. [UB-GRP-66-1444]

向作者/读者索取更多资源

This study evaluated the use of a new heteropolysaccharide (LmPS) extracted from Lobularia maritima as an antioxidant and antibacterial additive in the preservation of raw minced meat. The results showed that LmPS had significant antibacterial activity against foodborne pathogens and improved the shelf life of meat by reducing lipid oxidation.
In this study, a new heteropolysaccharide extracted from Lobularia maritima (L.) Desv. (LmPS), a halophyte harvested in Tunisia, was evaluated as an antioxidant and antibacterial additive in the bio-preservation of raw minced meat. For antibacterial testing, Gram-positive bacteria such as Staphylococcus aureus ATCC and Listeria monocytogenes ATCC 19,117 and Gram-negative bacteria such as Salmonella enterica ATCC 43,972 and Escherichia coli ATCC 25,922 were used. The results indicate that this polymer had a significant antibacterial activity against foodborne pathogens. Additionally, the effects of LmPS at 0.15, 0.3 and 0.6% on refrigerated raw ground beef were investigated from a microbiological, chemical, and sensory perspective. Microbiological analysis of the meat showed that treatment with LmPS significantly (p < 0.05) improved its shelf life, while the biochemical analysis evidenced a significant (p < 0.05) decrease in lipid oxidation. LmPS at 0.6% significantly reduced by 61% and 48% metmyoglobin accumulation at the end of the storage period when compared to BHT and control samples, respectively. The chemometric approach highlighted the relationships among the different meat quality parameters. LmPS can be introduced in the food industry as a powerful natural additive and could be an alternative to synthetic antioxidant compounds.

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