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| Sandri,Ivana Greice; Piemolini-Barreto,Luciani Tastch; Fontana,Roselei Claudete; Silveira,Mauricio Moura da. |
| In the present study, the effect of pectinases on the production of pulp and juice of araçá and the presence of bioactive compounds were evaluated. An enzyme extract (EE) produced by Aspergillus niger LB-02-SF in solid state fermentation and the commercial enzyme Ultrazym®AFP-L were used in this study. After enzyme treatment with the EE preparation, the extraction yield increased by 23.1% and viscosity decreased by 42.8%, during pulp maceration. During juice processing, there was an increase of 70.6% in clarification and a decrease of 72.87% in turbidity. Higher values of these parameters, 47.7, 69.0, 80.7, and 79.7%, respectively, were obtained using the Ultrazym®AFP-L, which also led to a significant increase in the polyphenol content, both in the pulp... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aspergillus niger; Yield; Clarification; Bioactive compounds. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612014000400002 |
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| Barrosi,Sueli T. D.; Mendes,Elisabete S; Peres,Leila. |
| West Indian cherry (Malpighia glabra L.) and pineapple (Ananas comosus (L.) Meer)juice clarification by cross-flow UF, using polysulphone hollow fiber and ceramic tubular membranes with, respectively, nominal molecular weight cut off values of 100kDaltons and average pore diameters of 0.01mm, were studied. The influence of enzymatic treatment using enzyme concentrations of 20, 100 and 300mg/L, a time of 90min and a temperature of 40ºC for depectinization was verified. The juices were then clarified in a laboratory scale filtration unit, with an effective filtration area of 0.12m² for the polysulphone hollow fiber membrane and of 0.005m² for the ceramic tubular membranes. The influence of enzymatic treatment on viscosity, turbidity and total pectin of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Clarification; Enzyme treatment; Ceramic tubular; Polysulfone hollow fiber; Membrane. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612004000200006 |
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| CABRAL, L. M. C.; CANDÉA, I. V.; CANDÉA, T. V.; MECENAS, A. S.; PINTO, T. de M.; MATTA, V. M. da. |
| Este documento trata da produção de sucos de frutas clarificados ou concentrados por processos de separação por membranas, a microfiltração e a osmose inversa. As frutas selecionadas foram o cajá (taperebá) e a amora, em função de suas características funcionais e o melão, pelas suas características sensoriais. Como elemento inovador, apresenta a microfiltração como um processo que pode ser aplicado tanto para a concentração de compostos bioativos importantes como os carotenóides quanto para a obtenção de sucos límpidos e isentos de partículas em suspensão, o que facilita etapas posteriores de fracionamento ou concentração do produto. Ressalta-se, ainda, a opção da pré-concentração a frio por osmose inversa visando à manutenção das características... |
| Tipo: Folhetos |
Palavras-chave: Polpa de cajá; Suco de amora; Microfiltração; Suco de melão; Osmose inversa; Tecnologia de membrana; Clarification; Carotenóide; Processamento; Spondias Mombin; Microfiltration; Carotenoids; Fruit juices; Melons; Blackberries; Processing technology. |
| Ano: 2010 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/874618 |
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