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Physicochemical Properties of Pigmented Rice (Suwon-415)  

Lee, You-Seok (Department of Food Science and Technology & Institute of Agricultural Science and Technology,Chonnam National University)
Cho, Ji-Mi (Department of Food Science and Technology & Institute of Agricultural Science and Technology,Chonnam National University)
Rhee, Chong-Ouk (Department of Food Science and Technology & Institute of Agricultural Science and Technology,Chonnam National University)
Publication Information
Korean Journal of Food Science and Technology / v.34, no.5, 2002 , pp. 842-845 More about this Journal
Abstract
Physicochemical properties and water uptake rate of pigmented rice were determined. The median and mean particle sizes of pigmented rice flour were 15.18 and $38.53\;{\mu}m$, whereas brown rice flour were 11.46 and $33.41\;{\mu}m$, respectively. Water-binding capacity, swelling power, and solubility of pigmented rice flour were higher than those of brown rice flour. X-ray diffraction patterns showed traditional A type of cereals. Moisture gain of pigmented rice kernels increased continuously up to 60 min at soaking temperature $(20{\sim}25^{\circ}C)$. Water uptake rate constants of pigmented rice during soaking at $20{\sim}25^{\circ}C$ also increased.
Keywords
pigmented rice; brown rice; physicochemical properties; water uptake rate;
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