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KMID : 1024420090130040289
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Food Engineering Progress
2009 Volume.13 No. 4 p.289 ~ p.296
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Quality Characteristics of Backsulgi with Dextrinized Rice
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Doo Hwa-Jin
Lee Eun-Suk
Kim Yong-Ro
Shim Jae-Yong
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Abstract
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The purpose of this study was to investigate the effect of dextrinization methods (dry oven and roaster) and the ratio of dextrinized rice on the quality of Backsulgi during storage. The moisture content significantly increased with increasing the amount of dextrinized rice regardless of dextrinization methods. As the ratio of dextrinized rice increased, the L value of the Backsulgi decreased, but the a and b values increased. The a and b values of dry oven method were higher than those of roaster method due to their thermal denaturalization. However, there were no significant pattern`s change in sample`s colors during storage. In the texture profiles, the hardness, cohesiveness, gumminess and chewiness significantly decreased with increasing the amount of dextrinized rice depending on the dextrinization methods and the ratios. The time constant (1/k) of the Backsulgi with dextrinized rice comparatively higher than that of control and appeared to be the highest in the Backsulgi formulated by 100% of dextrinized rice. In the sensory evaluation, Backsulgi with dextrinized rice over 30% after 1day storage showed higher value in overall quality and lower value in hardness than control. The addition of 30% dextrinized rice made by roaster showed the most effective on the quality and retrogradation of Backsulgi.
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KEYWORD
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backsulgi, retrogradation, dextrinization, texture, sensory evaluation
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