Growth of the meat spoilage organism, Brochothrix thermosphacta, was supported by either glucose or glycerol with acetoin production. Similar yields of bacteria were obtained at growth-limiting concentrations of either substrate. The rate of uptake of each substrate was similar but glycerol supported higher rates of respiration than glucose. These findings are discussed in relation to metabolism of glycerol and the use of glycerol for meat storage.
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http://dx.doi.org/10.1111/j.1365-2672.1984.tb04705.x | DOI Listing |
Foods
December 2024
Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, Tai'an 271018, China.
The aim of this study was to compare the succession of natural microbiota in pork held under refrigerated storage for up to 10 days after dielectric barrier discharge (DBD) plasma treatment. Two methods were used to assess the impact of DBD on microorganisms. Firstly, traditional selective media (SM) were employed to detect the bactericidal effects of DBD on spp.
View Article and Find Full Text PDFMicrobiol Res
March 2025
Centre for Food Science and Veterinary Public Health, University of Veterinary Medicine Vienna, Veterinaerplatz 1, Vienna 1210, Austria.
Listeria (L.) monocytogenes can survive for extended periods in the food producing environment. Here, biofilms possibly provide a niche for long-term survival due to their protective nature against environmental fluctuations and disinfectants.
View Article and Find Full Text PDFCarbohydr Polym
January 2025
School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, Anhui, China; Engineering Research Center of Bio-Process of Ministry of Education, School of Food & Biological Engineering, Hefei University of Technology, Hefei 230601, Anhui Province, China.
In order to solve the problem of poor adhesion of polysaccharide coatings in meat storage and inconvenient secondary spraying, which leads to poor preservation effect, this study was inspired by the property of mussels to adhere firmly to surfaces and design a bioactive composite coating. Here, curcumin-loaded zein nanoparticles (CZ NPs) were successfully prepared and incorporated into carrageenan-based biocomposite coatings for chilled meat preservation. The prepared curcumin-zein-riboflavin-carrageenan (CZRC) coating featured smooth spherical morphology and the solubility of hydrophobic substances, the adhesion and stability of the composite coating were respectively improved to 3.
View Article and Find Full Text PDFMicrobiome
October 2024
Department of Food Hygiene and Technology and Institute of Food Science and Technology, Universidad de León, 24071, León, Spain.
Background: Processing environments can be an important source of pathogenic and spoilage microorganisms that cross contaminate meat and meat products. The aim of this study was to characterize the microbiome of raw materials, processing environments and end products from 19 facilities producing different meat products.
Results: The taxonomic profiles of the microbial communities evolved along processing, from raw materials to end products, suggesting that food contact (FC) surfaces play an important role in modulating the microbiome of final products.
Int J Food Sci
July 2024
Laboratory of Microbiology and Biotechnology of Foods Department of Food Science and Human Nutrition School of Food and Nutritional Sciences Agricultural University of Athens, Iera Odos 75, Athens GR-11855, Greece.
In the present study, selected pathogenic ( Typhimurium, , , , , and ) and nonpathogenic (, , , , , and ) bacteria were subjected in vitro in cold atmospheric pressure plasma (CAPP) treatment for up to 15 min and the changes in the surviving microbial population were determined. Plasma treatments were carried out by a plasma jet device, operating with argon (Ar) as carrier gas under constant flow (4.0 L/min) at a frequency of 1 MHz and an electrical voltage of 2-6 kV.
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