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KMID : 1134820090380091215
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Journal of the Korean Society of Food Science and Nutrition
2009 Volume.38 No. 9 p.1215 ~ p.1221
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Quality Characteristics of Jeungpyun Prepared by Rice Sourdough
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Oh Chul-Hwan
Oh Nam-Soon
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Abstract
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The purpose of this work was to improve the quality of Jeungpyun made with rice sourdough, which was prepared using a mixed culture of Saccharomyces cerevisiae (S. cerevisiae) and Leuconostoc mesenteroides (L. mesenteroides) strains, and to also develop a new process for Jeungpyun preparation using the rice sourdough. The Jeungpyun was manufactured through proofing for 3 hr at 30oC and steaming steps after mixing the ingredients, including pre-fermented rice sourdough, rice powder and water. After proofing, the expansion ratio of the Jeungpyun dough ranged from 109 to 135% and the pH was decreased to pH 3.80~4.09. The volumes of the Jeungpyun samples prepared with rice sourdough were 18~45% greater than that of the control. In particular, the Jeungpyun made with rice sourdough containing 10% brown rice (CM-10) had a significantly greater volume (266 mL). Also the rice sourdough Jeungpyun samples had well developed dense porous structures compared to the control. According to sensory evaluations, the sample prepared with rice sourdough containing 10% brown rice was preferred. Finally, the physical quality (texture properties) and microbiological shelf-life of the Jeungpyun was improved by using the rice sourdough.
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KEYWORD
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Jeungpyun, rice, sourdough, Saccahromyces cerevisiae, Leuconostoc mesenteroides
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