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KMID : 0380620210530010092
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Korean Journal of Food Science and Technology
2021 Volume.53 No. 1 p.92 ~ p.98
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Effects of heat-moisture treatment of rice flour on the properties in tofu
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An Shu
Lee Kwang-Yeon
Lee Hyeon-Gyu
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Abstract
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The effects of heat-moisture treatment (HMT) on rice flour (RF) have been investigated for possibility of texture modifier in protein-based foods matrix, tofu. The optimum condition for preparation of tofu with maximum textural parameters was investigated by using response surface methodology (RSM). Rice flour was subjected to moisture content (10-30%) and heating temperature (100-140oC). Based on the response surface and superimposed plots, the optimized conditions of hydrothermally treated rice flour was as followed: moisture content, 22%; temperature, 130oC, which showed lower swelling power as compared to native RF and became more stable during continuous heating and agitation than native one. Tofu, prepared with HMT-RF, showed a denser network structure than that with RF, thereby inducing an increase in textural parameters. From the above results, the addition of HMT-RF could preserve the quality of tofu and be useful for developing an acceptable protein-based food product.
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KEYWORD
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heat-moisture treatment, RSM, rice flour, textural properties, tofu
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