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| 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 |
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| Fernandes,Andrezza Maria; Bovo,Fernanda; Moretti,Thais Santos; Rosim,Roice Eliana; Lima,César Gonçalves de; Oliveira,Carlos Augusto Fernandes de. |
| The objective of this work was to evaluate the effect of somatic cell counts (SCC) in casein fractions of ultra high temperature (UHT) milk. Raw milks were categorized in SCC groups of low (200,000-320,000 cells mL-1), intermediate (380,000-560,000 cells mL-1) and high cells (600,000-800,000 cells mL-1). Five replicates of UHT milks within each SCC category were analyzed for casein fractions after 8, 30, 60, 90 and 120 days of storage through high performance liquid chromatography. SCC showed effect only on beta-casein reduction. SCC in raw milk increases the proteolysis of UHT milk, as a consequence of beta-casein degradation. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: SCC; UHT milk; Proteolysis; Milk quality. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2008000100019 |
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