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KMID : 1134820130420081277
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Journal of the Korean Society of Food Science and Nutrition
2013 Volume.42 No. 8 p.1277 ~ p.1282
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Effects of Pregelatinized Rice Flour on the Textural Properties of Gluten-free Rice Cookies
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Lee Joon-Kyoung
Lim Jae-Kag
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Abstract
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The effects of pregelatinized rice flour (PRF) as an additive on the textural properties of rice cookies were investigated in this study. PRF was used at 10, 20, 30, 40, 50, and 60% per 100 g of rice flour. The hardness of dough and cookies, as measured by a texture analyzer, increased upon the addition of PRF. In contrast, the moisture content of the dough and cookies decreased upon the addition of PRF. The L value of the dough and cookies decreased upon the addition of PRF, whereas the a value increased upon the addition of PRF. The bulk density of the cookies increased upon the addition of PRF. In addition, the spreadability of the cookies was lower than the control. In the sensory evaluation, rice cookies with 50% PRF showed the highest scores for hardness, brittleness, softness, and moisture. Rice cookies with 60% PRF showed the highest scores for sandiness. Our results suggest that the texture of the rice cookies can be improved by adding PRF.
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KEYWORD
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rice cookie, pregelatinized rice flour (PRF), textural properties, hardening effect
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