Swelling and pore structure in starchy materials

The specific surface areas of different starchy materials were determined by means of the t-method, their values being practically constant in the range of water activities 0·10-0·80. The straightness of the v1-t plots observed in all cases indicated the absence of an intrinsic microporous structure...

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Autor principal: Aguerre, Roberto Jorge
Publicado: 1989
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Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02608774_v9_n1_p71_Aguerre
http://hdl.handle.net/20.500.12110/paper_02608774_v9_n1_p71_Aguerre
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Sumario:The specific surface areas of different starchy materials were determined by means of the t-method, their values being practically constant in the range of water activities 0·10-0·80. The straightness of the v1-t plots observed in all cases indicated the absence of an intrinsic microporous structure. The lack of a pore structure and the high values of the specific surface areas are explained on the basis of the interlamellar expansion of the starch granule structures on uptake of water. © 1989.