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Provedor de dados:  Ciênc. Tecnol. Aliment.
País:  Brazil
Título:  Effect of pectinolitic enzymes on the physical properties of caja-manga (Spondias cytherea Sonn.) pulp
Autores:  Umsza-Guez,Marcelo Andres
Lago-Vanzela,Ellen Silva
Silva,Roberto da
Thoméo,João Cláudio
Data:  2011-06-01
Ano:  2011
Palavras-chave:  Pectinolytic enzymes
Pectinex Ultra SP
Cajá-manga pulp
Enzyme treatment
Juice extraction
Juice viscosity
Resumo:  Cajá-manga, also known as golden apple and hog-plum, is an exotic fruit native from Îles de la Société (French Polynesia), which was first introduced in Brazil in 1985. The pulp of ripe fruit was treated with the commercial enzymatic pool and its effect was evaluated in terms of yield, as well as the physical properties viscosity, turbidity and color (L* values). Response surface methodology was used and three levels were adopted for the independent variables temperature (30, 40, and 50 ºC), incubation time (30, 60 and 90 minutes) and enzyme concentration (0.01, 0.05, 0.09 v/v%). A central composite statistical design was used to guide the experimental work. The enzyme treatment highly increased both juice yield (up to 56%) and color (up to 8.6%) and strongly decreased viscosity (up to 57.4%), clarity (up to 77%) and turbidity (up to 85.5%). Incubation time was the most interacting facto, whereas temperature was the least one. Optimization analysis was carried out to reduce enzyme concentration to a minimum by superposing the contour plots of the tested properties, and the recommended ranges of the variables enzyme concentration, process temperature and incubation time were, respectively, 0.042-0.068%, 47.0-49.0 ºC and 82-90 minutes.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Editor:  Sociedade Brasileira de Ciência e Tecnologia de Alimentos
Relação:  10.1590/S0101-20612011000200037
Formato:  text/html
Fonte:  Food Science and Technology v.31 n.2 2011
Direitos:  info:eu-repo/semantics/openAccess

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