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Optimization of Maillard Reactions of Tagatose and Glycine Model Solution by Appyling Response Surface Methodology  

Ryu, So-Young (Department of Food Science and Nutrition, The Catholic University of Korea)
Roh, Hoe-Jin (R&D Center, Tong Yang Confectionery Co.)
Noh, Bong-Soo (Department of Food and Microbial Technology, Seoul Women's University)
Kim, Sang-Yong (R&D Center, Bio & Gene Co.)
Oh, Deok-Kun (Department of Bioscience and Biotechnology, Sejong University)
Lee, Won-Jong (Department of Food Science, Kangnung National University)
Yoon, Jung-Ro (Department of Food Science, Kangnung National University)
Kim, Suk-Shin (Department of Food Science and Nutrition, The Catholic University of Korea)
Publication Information
Korean Journal of Food Science and Technology / v.35, no.5, 2003 , pp. 914-917 More about this Journal
Abstract
This study was undertaken to find the optimum condition for the Maillard browning reaction of tagatose and glycine model solution by applying the response surface methodology. Independent variables were pH (3, 5, 7), temperature (70, 85, $100^{\circ}C$), and time (60, 180, 300 min), while the dependent variables were absorbance, yellowness, color difference, and organoleptic score. The quadratic models with the cross-product proved to be suitable, due to the high coefficients of determination and the lack of fit results. Since all the dependent variables had saddle points, the optimal points were determined through ridge analysis. For absorbance, yellowness, and color difference, the optimal points were the lowest values; in contrast, the optimal point of organoleptic score was the highest value.
Keywords
tagatose; glycine; Maillard browning reaction; response surface methodology;
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