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| Rezende,Elisângela de Fátima; Borges,Josiane Gonçalves; Cirillo,Marcelo Ângelo; Prado,Guilherme; Paiva,Leandro Carlos; Batista,Luís Roberto. |
| The genera Aspergillus comprises species that produce mycotoxins such as aflatoxins, ochratoxins and patulin. These are cosmopolitan species, natural contaminants of agricultural products. In coffee grains, the most important Aspergillus species in terms of the risk of presenting mycotoxins belong to the genera Aspergillus Section Circumdati and Section Nigri. The purpose of this study was to assess the occurrence of isolated ochratoxigenic fungi of coffee grains from organic and conventional cultivation from the South of Minas Gerais, Brazil, as well as to evaluate which farming system presents higher contamination risk by ochratoxin A (OTA) produced by fungi. Thirty samples of coffee grains (Coffea arabica L.) were analysed, being 20 of them of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aspergillus ochraceus; Ochratoxin A; Arabica coffee. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000200006 |
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| Borges,Josiane Gonçalves; Tagliamento,Marina; Silva,Aline Guerra; Sobral,Paulo José do Amaral; Carvalho,Rosemary Aparecida de. |
| This study aimed at evaluating the effect of different concentrations of hydrolyzed collagen (HC) on the properties of an orally disintegrating film containing propolis ethanol extract (PEE) as an active component. The films were evaluated in terms of total phenols, mechanical properties, solubility, contact angle, disintegration time, and microstructure. The films were prepared by casting with 2 g of protein mass (gelatin and HC), 30 g of sorbitol/100 g of protein mass, and 100 g of PEE/100 g of protein mass. HC was incorporated at concentrations of 0, 10, 20, and 30 g/100 g of protein mass. It was found that increased concentrations of HC reduced tensile strength and increased elongation; however, all films showed plastic behavior. An increase in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Protein; Natural bioactive compounds; Disintegration time. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612013000500005 |
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