Use este identificador para citar ou linkar para este item: http://repositorio.ital.sp.gov.br/jspui/handle/123456789/402
Título: Morphological characterization with image analysis of cocoa beverage powder agglomerated with steam
Autor(es): Vissotto, Fernanda Zaratini







Palavras-chave: Agglomeration
Steam
Data do documento: 2014
Citação: Food Science and Technology, Campinas, 2014.
Resumo: In this study, the morphological characteristics of cocoa beverage powder granules under minimal, average, and maximal process conditions of a steam agglomerator were studied. A stereoscopic microscope coupled to a digital camera was used for the morphological analysis. The images were analyzed to obtain shape and size descriptors. Aiming to evaluate the descriptors, 150 particles were analyzed. The results showed that there was no difference between the shape descriptors - compacity, circularity, roughness, and aspect ratio - in the operating conditions evaluated. It was observed that the cocoa beverage powder granules are elongated in shape. The size descriptors, area, perimeter, perimeter of convex bounding polygon, minimal and maximal Feret diameter, were different in the process conditions for the granules of size above 600 μm. As for the minimal process conditions, especially due to low solid feed rates, there is an increase in the size descriptor values. In addition, under the minimum process conditions, in which there is low solid feed rate (400g/min) for a steam pressure of 1.0 bar, it was obtained a good granular condition with retention of 81.1% of granules on sieves with aperture size between 300 and 1190 μm.
URI: http://repositorio.ital.sp.gov.br/jspui/handle/123456789/402
Outros identificadores: 
Aparece nas coleções:Artigos cientificos

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
Morphological characterization with....pdf3.07 MBAdobe PDFVisualizar/Abrir


Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.