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| Registros recuperados: 46 | |
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| Bravo-Martins,Claudia Eugênia Castro; Carneiro,Heloisa; Castro-Gómez,Raúl Jorge Hernán; Figueiredo,Henrique César Pereira; Schwan,Rosane Freitas. |
| Sugar cane silage has a potential for animal feeding, but uncontrolled growth of undesirable microorganisms may cause nutritional losses and affect the animal productivity and health. The objective of this work was to evaluate the microbiological quality and chemical composition of ensiled sugar cane with and without nutritional additives after 30 days of fermentation. Yeasts, filamentous fungi and distinct groups of bacteria were enumerated by plate count methods and the chemical analyzes comprised dry matter, crude protein, fiber content, lignin, and pH. Facultative aerobic bacteria and filamentous fungi were not detected during the fermentative process in any of the treatments. The number of yeasts in five varieties of sugar cane silage without... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sugar cane silage; Fermentation; Yeasts; Lactic acid bacteria. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000400018 |
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| Vieira,Regine Helena Silva dos Fernandes; Rodrigues,Dália dos Prazeres; Menezes,Everardo A.; Evangelista,Norma Suely de Santana; Reis,Eliane M.F. dos; Barreto,Leopoldo Melo; Gonçalves,Flávia Araújo. |
| The presence of faecal contamination and pathogenic microorganisms in samples of dry and wet sand collected from three major beaches in Fortaleza, Ceará State, Brazil: (Praia do Mucuripe, Praia do Futuro and Praia do Caça e Pesca), during the period of May 1999 to January 2000 was evaluated. Praia do Caça e Pesca had the highest incidence of E. coli in dry sand (56%) followed by Praia do Mucuripe (28%) and Praia do Futuro (16%). In wet sand, results were 48%, 28% and 24% for Praia do Caça e Pesca, Praia do Futuro and Praia do Mucuripe, respectively. Only two samples from Praia do Futuro, one from dry sand and another one from wet sand, were positive for Salmonella. V. parahaemolyticus was isolated from four samples from Praia do Caça e Pesca (two from... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sand contamination; Yeasts; Faecal coliforms; Vibrio parahaemolyticus; Salmonella. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822001000200001 |
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| Martins,Gisele Marta; Bocchini-Martins,Daniela Alonso; Bezzerra-Bussoli,Carolina; Pagnocca,Fernando Carlos; Boscolo,Maurício; Monteiro,Diego Alves; Silva,Roberto da; Gomes,Eleni. |
| ABSTRACT For the implementation of cellulosic ethanol technology, the maximum use of lignocellulosic materials is important to increase efficiency and to reduce costs. In this context, appropriate use of the pentose released by hemicellulose hydrolysis could improve de economic viability of this process. Since the Saccharomyces cerevisiae is unable to ferment the pentose, the search for pentose-fermenting microorganisms could be an alternative. In this work, the isolation of yeast strains from decaying vegetal materials, flowers, fruits and insects and their application for assimilation and alcoholic fermentation of xylose were carried out. From a total of 30 isolated strains, 12 were able to assimilate 30 g L-1 of xylose in 120 h. The strain Candida... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Xylose; Yeasts; Ethanol. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000100162 |
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| Moreira,Silvia Regina; Schwan,Rosane Freitas; Carvalho,Eliana Pinheiro de; Wheals,Alan E.. |
| Seventy-two cartons of yoghurt were sampled three times at monthly intervals from four different local manufacturers. Total counts were close to 6 x 10(7) cells g-1 of yoghurt. Yeast counts varied from 1 to 2,700 g-1. There was no evidence of systematic contamination at source but this longitudinal study revealed that ad hoc contamination and improper storage led to the higher yeast counts. Contamination was generally higher in the hotter months but was lower overall than reported from other countries. A total of 577 yeast isolates were identified belonging to ten species. The most abundant yeasts were, in order, Debaryomyces hansenii, Saccharomyces cerevisiae, Mrakia frigida, Hansenula spp., Candida parapsilosis, Debaryomyces castellii and Candida... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Yeasts; Filamentous fungi; Yoghurts; Deterioration. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822001000200009 |
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| Registros recuperados: 46 | |
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