Consulta: creatorFacets:"Vidal,Ana Maria Centola"
Registros recuperados: 4
Data/hora: 08/06/2024 11:59:35

Detection of Bacillus cereus isolated during ultra high temperature milk production flowchart through random amplified polymorphic DNA polymerase chain reaction
Provedor de dados: 65
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: 65
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: 65
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

Somatic cell count obtained by Ekomilk Scan® and correlations with other methods of analysis
Provedor de dados: 65
Autores: Gonçalves,Ana Carolina Siqueira; Roma Júnior,Luiz Carlos; Privatti,Rafaela Torrezan; Salles,Márcia Saladini Vieira; Paz,Claudia Cristina Paro de; Zadra,Lenira El Faro; Vidal,Ana Maria Centola.
ABSTRACT: The study aimed to evaluate the equipment Ekomilk Scan® as an alternative to somatic cell count (SCC) in milk. For this individual cow milk samples of various ages and different stages of lactation in northeastern state of São Paulo region were collected. The analyzes performed were divided into variables related to the equipment: repeatability and reproducibility, and variables that could influencing the results as: use of preservatives, temperature, time between collection and analysis, breed and milk composition, besides analysis to relate the Ekomilk Scan® with the standard method-direct microscopy and reference-flow cytometry. As the result, for samples analysis, it shouldn’t be added preservative and these should be conducted on the same...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Monitoring; Udder health; Alternative method; Somatic cell count.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000600454