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KMID : 0665220150280061065
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Korean Journal of Food and Nutrition
2015 Volume.28 No. 6 p.1065 ~ p.1070
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Physicochemical Characteristics of Super-Yield Korean Rice Cultivar depending on Milling Condition
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Lee Na-Young
Ha Ki-yong
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Abstract
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A high-yield Korean rice cultivar cv. Boramchan and Hanmaeum, and rice cultivar for use in staple cv. Hopum were prepared and investigated for their physiological characteristics. Water content, water holding capacity, amylose content, damaged starch content, particle size, and pasting properties of the rice flours were measured. Moisture content of the Boramchan and Hanmaeum, made under wet and dry milling conditions, were as follows: wet conditions (14.79% and 13.56% respectively) and dry conditions (7.98% and 7.14% respectively). Water holding capacity of the Boramchan and Hanmaeum made by wet milling condition was 236.67% and 231.35%, respectively. Water holding capacity of the samples made by dry milling condition showed a higher score compared with other samples. The amylose content of Hopum, Boramchan, and Hanmaeum made by dry milling condition were 19.12%, 19.55% and 19.59%, respectively. Damaged starch contents of the samples made by wet milling showed a lower score. Final viscosity of Hopum, Boramchan, and Hanmaeum made by wet milling condition was 2,604, 3,052, and 2,917 cp, respectively. In this study, the results indicated that the super-yield Korean rice flour made by wet milling condition tends to show a lower water holding capacity, damaged starch contents and particle size, as compared to controls. However, a setback of the super-yield Korean rice flour was a higher score as compared to the controls, regardless of the milling conditions.
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KEYWORD
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super-yield Korean rice cultivar, rice starch, pasting properties
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