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The impact of convective drying on the color, phenolic content and antioxidant capacity of noni (Morinda citrifolia L.) Ciênc. Tecnol. Aliment.
MIRELES-ARRIAGA,Ana Isabel; RUIZ-LÓPEZ,Irving Israel; HERNÁNDEZ-GARCÍA,Pedro Abel; ESPINOSA-AYALA,Enrique; LÓPEZ-MARTÍNEZ,Leticia Xóchitl; MÁRQUEZ-MOLINA,Ofelia.
Abstract The effect of thin-layer drying temperature on color, phenolic content and antioxidant capacity of noni slices was investigated. Noni slices were air-dried at 50, 60 and 70 °C under natural convection conditions. Drying curves were fitted to thin-layer drying models in order to evaluate the drying characteristics of the product. In addition, an unsteady-state diffusion equation was numerically solved considering both product shrinkage and a variable mass Biot number in boundary condition to accurately estimate water diffusivity in a process with external resistance to mass transfer. Results revealed that the Aghbashlo model accurately reproduced the experimental behavior. As expected, water diffusivities, corrected for shrinkage, increased with...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antioxidants; Natural convection; Noni drying.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612016000400583
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