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| Lopes,Paulo Rodinei Soares; Pouey,Juvêncio Luis Osório Fernandes; Enke,Dariane Beatriz Schoffen; Mallmann,Carlos Augusto; Kich,Henrique Augusto; Soquetta,Marcela Bromberger. |
| Neste trabalho foi avaliado o efeito de um adsorvente (aluminossilicato de cálcio e sódio) no desempenho de alevinos de jundiá (Rhamdia quelen) alimentados com rações contendo níveis crescentes de aflatoxina. Foram utilizados 360 peixes com peso inicial de 4,2 ± 0,6 g, criados em sistema de recirculação da água termorregulada, durante 90 dias, e alimentados com rações contendo um dos quatro níveis de aflatoxinas (0, 150, 250 e 350 µg/kg), com e sem inclusão de adsorvente (0, 0,3 e 0,6%), com três repetições. O uso de aflatoxina teve efeito negativo sobre o crescimento e o ganho de peso dos alevinos, que reduziram proporcionalmente aos níveis de aflatoxina, mas não ocasionou mortalidade. Os níveis de adsorvente na dieta não diminuíram os efeitos das... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aluminossilicato; Micotoxina; Nutrição; Toxina. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000400001 |
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| Boeira,Caroline Pagnossim; Piovesan,Natiéli; Soquetta,Marcela Bromberger; Flores,Déborah Cristina Barcelos; Lucas,Bruna Nichelle; Barin,Juliano Smanioto; Rosa,Claudia Severo da; Terra,Nelcindo Nascimento. |
| ABSTRACT: The aim of this study was to evaluate the effect of extraction conditions on bioactive compounds, as well as on antioxidant activity, and the antimicrobial activity of the extracts with the highest antioxidant characteristics. The extracts were obtained by conventional method and ultrasound-assisted extraction at various temperatures (20°C, 40°C and 60°C). Total phenolics, total flavonoids, antimicrobial activity and antioxidant activity were quantified by the methods of DPPH, FRAP, and ORAC, respectively. The conventional extraction method and ultrasound method influenced the phenolic content at all the tested temperatures. Flavonoids were not influenced by extraction methods. The antioxidant activity (DPPH) was highest in the ultrasonic method... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ultrasound; Bioactive compounds; Natural antioxidant; Achyrocline satureioides. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000600201 |
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| Boeira,Caroline Pagnossim; Piovesan,Natiéli; Soquetta,Marcela Bromberger; Flores,Déborah Cristina Barcelos; Lucas,Bruna Nichelle; Rosa,Claudia Severo da; Terra,Nelcindo Nascimento. |
| ABSTRACT: The aim of this work was to determine the best extraction condition of bioactive compounds from lemongrass (Cymbopogon citratus), using the conventional method and ultrasonic assisted extraction, varying the temperature, in order to evaluate the antioxidant activity and the antimicrobial activity of the extract with higher antioxidant power in fresh chicken sausages during the storage period. The extracts were obtained by the conventional method (solvent extraction) and by ultrasound assisted extraction, varying the temperature (20°C, 40°C and 60°C). Phenolic compounds, total flavonoids and antioxidant activity were measured by the DPPH, FRAP, ORAC methods. Conventional extraction and ultrasound methods influenced the phenolic and total flavonoid... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cymbopogon citratus; Natural antioxidants; Ultrasound; Chicken sausage. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018001100751 |
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