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KMID : 0665220130260040824
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Korean Journal of Food and Nutrition
2013 Volume.26 No. 4 p.824 ~ p.830
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Quality and Sensory Characteristics of Bechamel Sauce with Freeze-Dried Mugwort
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Kim Se-Han
Park Ki-Bong
Cho Sung-Hyun
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Abstract
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As a result of the sensory test for Bechamel Sauce being prepared by varying the amount of frozen-dry mugwort, the moisture content was the highest at 83.56% in the control group and the lowest at 76.18% in the one containing 20% of mugwort. The pH level decreased significantly (p>0.001) as the addition of specimen increased. In case of color, the brightness (L) and redness (a) were highest at 81.54 and －0.85 within the control group, and the yellowness (b) was highest at 35.82 for the one containing 20% of mugwort. The viscosity was the lowest at 64.45 cp for the control group and 138.45 cp for the Bechamel Sauce containing 20% of mugwort. Reduced sugar was significantly increased (p>0.001) with the addition of specimen. The results of change in the total number of bacteria showed that there was no microorganism until the third day of storage. On the fifth day, the groups with up to 10% mugwort showed 1.6×102 CFU/㎖ microorganisms and the groups containing 15% and 20% of mugwort were free of microorganisms. All groups contained microorganisms on the seventh day of storage, but the groups with greater mugwort contents showed smaller number of microorganisms on the fifth and tenth days. Taking into acoount the DPPH free radical removal of brown sauce containing mugwort, the removal increased with greater mugwort content. In terms of preference test, the color was 3.5 for the control group without the mugwort and the taste was highest at 5.1 with 10% of mugwort. The group containing 15% of mugwort received the highest score (4.6) for the after taste and the viscosity was the lowest at 2.7 for the group containing 20% of mugwort. Overall acceptability was the highest at 5.3 for the group containing 10% of mugwort and the lowest for the group containing 20% of mugwort.
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KEYWORD
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bechamel sauce, mugwort, sensory test, radical scavenging effects, freeze-dried
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