期刊
JOURNAL OF FOOD SCIENCE
卷 77, 期 2, 页码 C189-C197出版社
WILEY
DOI: 10.1111/j.1750-3841.2011.02546.x
关键词
batter; cake; fat replacement; inulin; structure
资金
- Spanish Ministry of Science and Innovation [AGL2009-12785-C02-02]
- Conselleria de Educacion of Valencia Government
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.
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