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Enhancement of sweetness intensity in gels by inhomogeneous distribution of sucrose
Authors:Ana Carolina Mosca  Fred van de Velde  Johannes HF Bult  Martinus AJS van Boekel  Markus Stieger
Affiliation:1. TI Food and Nutrition, P.O. Box 557, 6700 AN Wageningen, The Netherlands;2. Product Design and Quality Management Group, Wageningen University and Research Centre, P.O. Box 8129, 6700 EV Wageningen, The Netherlands;3. NIZO Food Research, P.O. Box 20, 6710 BA Ede, The Netherlands;1. Graduate School of Human Life Science, Osaka City University, Osaka, Japan;2. Department of Physics, Zhengzhou University of Light Industry, Zhengzhou, China;3. Department of Food Science and Technology, Tokyo University of Marine Science and Technology, Tokyo, Japan;4. Graduate School of Environmental Science, Nara Women''s University, Nara, Japan;5. School of Food and Pharmaceutical Engineering, Hubei University of Technology, Wuhan, China;1. TI Food and Nutrition, P.O. Box 557, 6700 AN Wageningen, The Netherlands;2. Wageningen University and Research Centre, Agrotechnology & Food Sciences Group, P.O. Box 8129, 6700 EV Wageningen, The Netherlands;3. NIZO Food Research, P.O. Box 20, 6710 BA Ede, The Netherlands;1. TI Food and Nutrition, PO Box 557, 6700 AN Wageningen, The Netherlands;2. Physics and Physical Chemistry of Foods, Wageningen University, PO Box 17, 6700 AA Wageningen, The Netherlands;3. Marketing and Consumer Behaviour, Department of Social Sciences, Wageningen University, PO Box 8130, 6700 EW Wageningen, The Netherlands;4. Division of Human Nutrition, Wageningen University, PO Box 17, 6700 AA Wageningen, The Netherlands
Abstract:Model systems consisting of layers of mixed agar/gelatin gel were used to investigate the effect of the spatial distribution of sucrose on perceived sweetness intensity. 2-Alternative forced choice tests were performed with consumers to compare the sweetness of layered samples with an inhomogeneous distribution of sucrose to the sweetness of a reference sample with a homogeneous distribution. All samples had the same overall sucrose concentration (10%) and similar mechanical and rheological properties. Inhomogeneous samples that had large concentration gradients of sucrose between layers were perceived sweeter than the homogeneous reference. No differences in sweetness were observed between the reference and samples with small concentration gradients of sucrose. Additionally, the position of the layers containing sucrose did not affect sweetness. Results showed that an inhomogeneous distribution of sucrose can be used to reduce sucrose content by 20% without a decrease in sweetness intensity.
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