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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Characterization of chicken meat contaminated with Salmonella by fluorescence spectroscopy

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Author(s):
Courrol, Lilia Coronato [1] ; Vallim, Marcelo Afonso [2]
Total Authors: 2
Affiliation:
[1] Univ Fed Sao Paulo, Inst Environm Chem & Pharmaceut Sci, Dept Phys, Diadema, SP - Brazil
[2] Univ Fed Sao Paulo, Inst Environm Chem & Pharmaceut Sci, Dept Biol, Diadema, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY; v. 261, NOV 15 2021.
Web of Science Citations: 0
Abstract

Contaminated poultry products as eggs and meat are the primary vehicles of Salmonella infection. Conventional methods for microorganisms detections involve multiple steps, and despite its accuracy, these assays are time-consuming. Biosensing methods have shown great potential for the rapid detection of foodborne pathogens. Some of the biosensors are based on fluorescence. Various fluorophores such as collagen, elastin, NAD(P)H, and porphyrins can be used to evaluate possible chemical changes in meat. In this manuscript, the fluorescence properties of chicken meat contaminated with Salmonella enterica (ATCC 14028) cell suspensions (500; 5000; 50,000 and 500,000 cells/mL) were obtained and compared with non-contaminated control, for meat kept at 25 degrees C for 24 and 48 h. The effects of ambient light were also considered. Our results indicated that free NAD(P)H and coproporphyrin emission bands present in contaminated meat, increased over time, and can provide access to valuable information for the detection of Salmonella in chicken meat. (c) 2021 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 15/04400-9 - The role of autophagy in Cryptococcus neorformas high temperature (37°C) growth and virulence
Grantee:Marcelo Afonso Vallim
Support Opportunities: Regular Research Grants
FAPESP's process: 17/23686-6 - Use of fluorescence spectroscopy on detection and control of contamination in food
Grantee:Lilia Coronato Courrol
Support Opportunities: Regular Research Grants