ArticleNPJ science of food2024
Cowpea legumin preservative impacts on beef ribeye and implications on antibiotic resistant food borne pathogens.
Article in NPJ science of food, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The current study assessed the minimum inhibitory concentration (MIC) of Cowpea-legumin (CPL) against antibiotic-resistant foodborne pathogens (FBP), the consequences on Longissimus thoracis et lumborum (LTL) quality and shelf-life, and the growth curves of inoculated FBPs. Fresh LTL-steaks were enriched with either 0.5 mg/g (CPL0.5) or 1 mg/g (CPL1) and evaluated over 15 chilling-days at 4 °C. Antibiotic-resistant Salmonella enterica and Escherichia coli were inhibited by 25 and 3.125 mg/mL, respectively, while antibiotic-susceptible FBPs and antibiotic-resistant Staphylococcus aureus were suppressed by 0.1 mg/mL CPL. CPL1-fortification produced fully tender LTL that was initially yellower/less red than the control, then turned brighter red with storage. CPL demonstrated promising dose-dependent antioxidant, and antibacterial activities against native spoilage and antibiotic-resistant/susceptible FBPs. CPL's proteinaceous composition, besides sample size, might impact stability. Conclusively, CPL demonstrated promising preservative stability in fresh meat for a maximum of fifteen-days and represents a viable antimicrobial alternative in battle against antibiotic-resistance.
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