Inactivation of Listeria monocytogenes by pulsed light in packaged and sliced salpicão, a ready-to-eat traditional cured smoked meat sausage
نویسندگان
چکیده
The efficacy of pulsed light (PL) for the surface decontamination a sliced ready-to-eat cured meat product, salpicão, was studied. slices inoculated with Listeria monocytogenes (107 cfu/g), and then PL treatment applied. Microbial analyses (L. monocytogenes, coagulase-negative Staphylococci (CNS), Lactic acid bacteria (LAB) Enterobacteriaceae) were performed immediately after treatment. pH, aw, colour volatile profile also evaluated. Response Surface experimental Design applied regarding factors voltage (ranging from 1828 to 3000 V) distance 2.6 5 cm) source, maximum 16.11 J/cm2 energy dose achieved. A reduction 1.58 log cfu/g in L. count obtained when fluence 5.31 Enterobacteriaceae, LAB CNS endogenous microbial populations not influenced by application reduced a* values b* without impacting sample ΔE or L* values. potential oxidative effect this technology evaluated solid-phase microextraction (SPME) gas chromatography-mass spectrometry (GC-MS), no significant changes verified its product.
منابع مشابه
Prevalence and Antibiotic Susceptibility of Listeria Monocytogenes Isolated from Retail Ready-to-Eat Meat Products in Gorgan, Iran
Background and Objectives: Listeria monocytogenes are known as an emerged foodborne pathogen and considered as a severe health risk. In the present study, prevalence and antibiotic resistance of L. monocytogenes isolated from ready-to-eat meat products in Iran were assessed. Materials and Methods: A total of 200 ready-to-eat meat products, including chicken meat (wing, breast, and leg), lamb a...
متن کاملOccurrence of Listeria monocytogenes in Ready-to-Eat Meat Products and Meat Processing Plants in Spain
The aim of this work was to study the occurrence of Listeria monocytogenes in several types of ready-to-eat (RTE) meat products and in the environment of meat processing plants. A total of 129 samples of RTE meat products and 110 samples from work surfaces and equipment were analyzed. L. monocytogenes was detected in 6 out of 35 cooked products (17.14%), 21 out of 57 raw-cured products (36.84%)...
متن کاملProject Report : Inactivation of Listeria monocytogenes on ready - to - eat meat products ( deli turkey breast and frankfurter ) by monocaprylin
متن کامل
Predicting growth-no growth of Listeria monocytogenes on vacuum-packaged ready-to-eat meats.
Compliance with U.S. Department of Agriculture (USDA) composition-based labeling standards often has been regarded as evidence of the shelf stability of ready-to-eat (RTE) meats. However, the USDA now requires further proof of shelf stability. Our previous work included development of equations for predicting the probability of Staphylococcus aureus growth based on the pH and a(w) of an RTE pro...
متن کاملTranscriptome analysis of Listeria monocytogenes grown on a ready-to-eat meat matrix.
The contamination of ready-to-eat (RTE) meat products with Listeria monocytogenes is a major concern for the food industry. For a better understanding of the adaptation and survival ability of L. monocytogenes grown on turkey deli meat, the transcriptome of L. monocytogenes strain F2365 was determined with a microarray. Microarray data were validated with a quantitative real-time reverse transc...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Lebensmittel-Wissenschaft & Technologie
سال: 2023
ISSN: ['1096-1127', '0023-6438']
DOI: https://doi.org/10.1016/j.lwt.2023.114641