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Soaking Properties and Quality Characteristics of Korean white Gruel with Different Blending Time of High-Dietary Fiber Rice'Goami 2'  

Hwang InKyeong (Department of Food Nutrition)
Lee Ji Hyun (Department of Food Nutrition, Research Intitute of Human Ecology, Seoul National University)
Seo Han-Seok (Department of Food Nutrition, Research Intitute of Human Ecology, Seoul National University)
Kim Soo Hee (Department of Food Nutrition, Research Intitute of Human Ecology, Seoul National University)
Lee Jung-Ro (National Institute of Agricultural Biotechnology)
Publication Information
Korean journal of food and cookery science / v.21, no.6, 2005 , pp. 927-935 More about this Journal
Abstract
The objectives of this study were to investigate the soaking properties of the high-dietary fiber rice 'Goami 2'and to develop korean white Gruel prepared with Goami 2. With increasing soaking time at room temperature ($20^{\circ}C$), the water absorbing character of Goami 2 and Ilpum significantly increased during the first hour of soaking time, after which it remained constant. On the contrary, the hardness of Goami 2 and Ilpum significantly decreased with increasing soaking time until one hour, after which it remained constant. The properties of Korean white gruel were evaluated using two varieties of rice (Goami 2, Ilpum) and three blending times (10, 20 and 30 seconds respectively). The rice flour of Goami 2 for Korean white gruel showed a greater number of small particles (<20 $\mu$m) than that of Ilpum. Hunter a'and b'values of Korean white gruel prepared with Goami 2 were higher than that of Korean white gruel prepared with Ilpum. The consistency values on Bostwick consistometer of Korean white gruel prepared with Goami 2 were higher than those of Korean white gruel prepared with Ilpum. The texture of Korean white gruel was examined using a back extrusion rig. All of the rheological parameters of Korean white gruel prepared with Goami 2 were decreased with increasing blending time, while in llpum they were increased. In the sensory evaluation results, the overall acceptability of korean white gruel prepared with Goami 2 blended for 20sec showed the highest sensory scores and desirability.
Keywords
Goami 2(Suwon 464); fiber; soaking; Korean white gruel;
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Times Cited By KSCI : 4  (Citation Analysis)
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