Gene expression related to the production of Bacillus cereus gastroenteric toxins during the shelf-life of pasteurized milk produced with contaminated milk

• Grant number: 14/13104-1
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: October 01, 2015
• End date: December 31, 2017
• Field of knowledge: Agronomical Sciences - Veterinary Medicine - Products of Animal Origin Inspection
• Principal Investigator: Ana Maria Centola Vidal
• Grantee: Gabriel Augusto Marques Rossi
• Host Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil
• Associated scholarship(s): 16/19214-9 - Comparative genomics and identification of factors involved in Bacillus cereus survival through the dairy supply chain, BE.EP.DR

Abstract

Bacillus cereus is an important bacterium related to dairy supply chain in Brazil and other countries due technological failures during processment in dairy industries due lipolytic and proteolytic enzyms and also is considered a danger to public health due toxins action able to cause two distinct syndromes: diarrheal and emetic. This bacterium is also able to survive to some heat treatments used during milk processment. The genes related to the production of different toxins by this bacterium are already characterized in the literature, but there were not found studies which evaluated how the processment of pasteurized milk when contaminated with Bacillus cereus may affect the gene expression related to toxins production that causes both syndromes. In this context, this study is focused on to determine if milk pasteurization influences the gene expression related to the production of emetic and diarrheal toxins from Bacillus cereus using milk previously contaminated.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

MARQUES ROSSI, GABRIEL AUGUSTO; SILVA, HIGOR OLIVEIRA; GAMERO AGUILAR, CARLOS EDUARDO; ROCHETTI, ARINA LAZARO; PASCOE, BEN; MERIC, GUILLAUME; MOURKAS, EVANGELOS; HITCHINGS, MATTHEW D.; MATHIAS, LUIS ANTONIO; DE AZEVEDO RUIZ, VERA LETTICIE; et al. Comparative genomic survey of Bacillus cereus sensu stricto isolates from the dairy production chain in Brazil. FEMS Microbiology Letters, v. 365, n. 3, FEB 2018. (14/13104-1, 16/19214-9, 15/20874-0)

GABRIEL AUGUSTO MARQUES ROSSI; CARLOS EDUARDO GAMERO AGUILAR; HIGOR OLIVEIRA SILVA; ANA MARIA CENTOLA VIDAL. Grupo do Bacillus cereus: aspectos genéticos relacionados à segurança alimentar e ao processamento de derivados lácteos. Arq. Inst. Biol., v. 85, 2018-11-01. (16/19214-9, 15/20874-0, 14/13104-1)