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Optimization of a sponge cake formulation with inulin as fat replacer: structure, physicochemical, and sensory properties

Rodriguez Garcia, J. ORCID: https://orcid.org/0000-0002-4986-3144, Puig, A., Salvador, A. and Hernando, I. (2012) Optimization of a sponge cake formulation with inulin as fat replacer: structure, physicochemical, and sensory properties. Journal of Food Science, 77 (2). C189-C197. ISSN 1750-3841

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To link to this item DOI: 10.1111/j.1750-3841.2011.02546.x

Abstract/Summary

The effects of several fat replacement levels (0%, 35%, 50%, 70%, and 100%) by inulin in sponge cake microstructure and physicochemical properties were studied. Oil substitution for inulin decreased significantly (P < 0.05) batter viscosity, giving heterogeneous bubbles size distributions as it was observed by light microscopy. Using confocal laser scanning microscopy the fat was observed to be located at the bubbles’ interface, enabling an optimum crumb cake structure development during baking. Cryo-SEM micrographs of cake crumbs showed a continuous matrix with embedded starch granules and coated with oil; when fat replacement levels increased, starch granules appeared as detached structures. Cakes with fat replacement up to 70% had a high crumb air cell values; they were softer and rated as acceptable by an untrained sensory panel (n = 51). So, the reformulation of a standard sponge cake recipe to obtain a new product with additional health benefits and accepted by consumers is achieved.

Item Type:Article
Refereed:Yes
Divisions:Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences > Food Research Group
ID Code:41211
Publisher:Wiley

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