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Evaluation of culture media for counts of Bifidobacterium animalis in the presence of yoghurt bacteria BJM
Moriya,Juliana; Fachin,Luciano; Gândara,Ana Lourdes Neves; Viotto,Walkiria Hanada.
Much attention has been paid to the use of Bifidobacterium sp. in yoghurts due to their excellent therapeutic and nutritional properties. However, in order to present health properties, it is recommended that each commercial product should indicate the minimum daily amount required for it to confer health benefit(s) based on in vitro and human studies. Besides the inherent low growth of Bifidobacterium sp in milk, there is a need for a reliable method for counting Bifidobacterium sp in the presence of yoghurt bacteria. This study evaluated the use of the media M-MRS, MRS-NNLP and RCPB pH5 aimed at counting the number of Bifidobacterium animalis subesp. lactis in the presence of Streptococcus thermophilus and Lactobacillus delbrueckii subsp bulgaricus after...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Count; Bifidobacterium; Lactic bacteria; Yoghurt.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000400021
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Evaluation of culture media for counts of Bifidobacterium animalis subsp. lactis Bb 12in yoghurt after refrigerated storage BJM
Fachin,Luciano; Moryia,Juliana; Gândara,Ana Lourdes Neves; Viotto,Walkiria Hanada.
The agar RCPB pH5 has been considered a good alternative for counts of Bifidobacterium in yoghurt. However, during the refrigerated storage of yoghurt it is extremely difficult to count this microorganism due to the size of the colonies, which are so small they require the aid of a stereoscope to count them. Another agar, MRS-LP, has been also recommended for counts of Bifidobacterium in the presence of yoghurt bacteria. This study evaluated the supplementation of RCPB pH5 agar with dehydrated liver extract and the salts KH2PO4, K2HPO4, FeSO(4)7H2O, MnSO4H2O and MgSO(4)7H2O, aiming at improving the differentiation of Bifidobacterium in yoghurt after refrigerated storage, and also evaluated the selective count of Bifidobacterium in yoghurt using the agar...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Count; Bifidobacterium; Yoghurt; Refrigerated storage.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000200029
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Evaluation of the PetrifilmTM EB and TEMPO® EB systems with ISO 21528-2:2004 method for the count of Enterobacteriaceae in milk BJM
Cirolini,Andréia; Miotto,Marília; Machado,Fernanda Morgana; Silva,Helen Silvestre da; Ogliari,Paulo José; Vieira,Cleide Rosana Werneck.
The development of alternative microbiological techniques is driven by the necessity to meet the current needs to deliver rapid results in the manufacturing process of foods, but it is important that these methods be evaluated for each application. The objective of the present study was to assess the PetrifilmTM EB and the TEMPO® EB systems with ISO 21528-2:2004 for the count of Enterobacteriaceae in pasteurized and UHT milk samples. We analyzed the microflora of 141 pasteurized milk samples, 15 samples of artificially contaminated pasteurized milk and 15 samples of artificially contaminated UHT milk. Investigation of the method PetrifilmTM EB and ISO 21528:2 regression analysis showed a high correlation in the samples, r = 0.90 for the microflora of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Enterobacteriaceae; Milk; Alternative methods; ISO 21528-2:2004; Count.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000300016
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Resultados de ensaio HVI e suas interpretações (ASTM D-4605) Infoteca-e
FONSECA, R. G. da.; SANTANA, J. C. F. de..
Teste de Micronaire; Maturidade percentual; Teor de açúcar (Honeydew); Upper half mean length (UHM); Span legth; Índice de uniformidade (uniformity index - UI); Razão de uniformidade (Uniformity ratio - UR); Coeficiente de variação do comprimento das fibras (CV%); Resistência da fibra (g/tex); Índice ou conteúdo de fibras curtas (SFI); Alongamento (Elongation) da fibra; Grau de reflexão (RD); Grau de amarelamento (+b); Cor (Color grade); Grau de folha (Leaf); Área; Count; Conteúdo de impurezas (Trash weigth - WT%); Tipo (Final grade); Couter Strength Product (CSP); Temperatura; Umidade.
Tipo: Circular Técnica (INFOTECA-E) Palavras-chave: Teste de Micronaire; Maturidade percentual; Teor de açúcar (Honeydew); Upper half mean length (UHM); Span legth; Índice de uniformidade (uniformity index - UI); Razão de uniformidade (Uniformity ratio - UR); Coeficiente de variação do comprimento das fibras (CV%); Resistência da fibra (g/tex); Índice ou conteúdo de fibras curtas (SFI); Alongamento (Elongation) da fibra; Grau de reflexão (RD); Grau de amarelamento (+b); Cor (Color grade); Grau de folha (Leaf); Área; Count; Conteúdo de impurezas (Trash weigth - WT%); Tipo (Final grade); Couter Strength Product (CSP); Temperatura; Umidade.
Ano: 2002 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/275874
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Speaking Stata: Making it count AgEcon
Cox, Nicholas J..
The count command has one simple role, to count observations in general or that satisfy some condition(s). This task can be useful when some larger problem pivots on counting, especially if count is used with a loop over observations or variables. I use various problems, mostly of data management, as examples. I also make comparisons with the use of _N, summarize, and egen for the same or similar problems.
Tipo: Article Palavras-chave: Count; Counting; Data management; Dropping variables; Finding matches; Research Methods/ Statistical Methods.
Ano: 2007 URL: http://purl.umn.edu/119259
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