Consulta: creatorFacets:"Rossi,Gabriel Augusto Marques"
Registros recuperados: 3
Data/hora: 09/06/2024 14:35:50

Detection of Bacillus cereus isolated during ultra high temperature milk production flowchart through random amplified polymorphic DNA polymerase chain reaction
Provedor de dados: Ciência Rural
Autores: Vidal,Ana Maria Centola; Rossi Junior,Oswaldo Durival; Abreu,Irlan Leite de; Bürger,Karina Paes; Cardoso,Marita Vedovelli; Gonçalves,Ana Carolina Siqueira; Rossi,Gabriel Augusto Marques; D'Abreu,Léa Furlan.
ABSTRACT: The present study focused on isolation Bacillus cereus during the UHT milk production and shelf life, to assess the enterotoxigenic production capacity of isolates and to evaluate the use of the RAPD-PCR technique to verify whether Bacillus cereus isolated at different phases of UHT milk processing belongs to the same strain. For this, six groups of milk samples composed of raw, pasteurized and UHT milk were collected from a processing plant. The results revealed that bacteria belonging to the Bacillus cereus group were isolated from 51.6%, 81.6% and from 13.8% of raw, pasteurized and UHT milk samples, respectively. About 50.0% of isolates from raw milk, 19.2% isolates from pasteurized milk and 70.7% isolates from UHT milk were capable of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacillus cereus; Enterotoxins; Microbiological quality; Pasteurized milk; Raw milk; UHT milk.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000200286

Methicillin-resistant Staphylococcus spp. isolated from curd cheese “requeijão” and “especialidade láctea type requeijão” sold in Brazil
Provedor de dados: Ciência Rural
Autores: Hachiya,Jamile de Oliveira; Rossi,Gabriel Augusto Marques; Ribeiro,Laryssa Freitas; Sato,Rafael Akira; Silva,Higor Oliveira; Vidal,Ana Maria Centola; Amaral,Luiz Augusto do.
ABSTRACT: This study focused on counting Staphylococcus spp. in curd cheeses “requeijão” and “especialidade láctea type requeijão” sold in Brazil, assessing the presence of mecA gene in obtained isolates and establishing antimicrobial resistance profile of the mecA gene positive isolates. To this, a set of 200 samples of these dairy products were evaluated. Low counts of Staphylococcus spp. were observed in these dairy products. All the isolates were determined as coagulase-negative strains using coagulase test and PCR. However, two isolates (3.70%) were carriers of mecA gene and they can be considered as risk for public health. These isolates presented resistance to penicillin, oxacillin and erythromycin. In conclusion, low counts of Staphylococcus were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antimicrobial resistance; Cheese; Food safety; MRS; Staphylococcus spp.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000700451

Microbial quality of industrial and retail market grated parmesan cheese in the State of São Paulo, Brazil
Provedor de dados: Ciência Rural
Autores: Aguilar,Carlos Eduardo Gamero; Rossi Junior,Oswaldo Durival; Vidal,Ana Maria Centola; Ribeiro,Laryssa Freitas; Rossi,Gabriel Augusto Marques.
ABSTRACT: With the objective to evaluate the hygienic and sanitary conditions of grated parmesan cheese acquired from the retail business, total 120 cheese samples were acquired: 60 of which were obtained from four different brands of cheese that were grated in factories, and the other 60 samples were obtained from another four brands of cheese that are normally acquired by retailers (supermarkets) in blocks and grated at the moment of sale. The population of heterotrophic mesophilic microorganisms ranged from 1.2×10³ to 1.1×107 colony-forming units (CFU)·g-1. All samples analyzed contained  Staphylococcus spp. with populations varying from 1.2×10³ to 8.7×106CFU·g-1, from which 60.0% were classified as coagulase-positive Staphylococcus and 52.5% of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dairy; Food microbiology; Public health; Staphylococcus aureus.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001202257