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http://dx.doi.org/10.17495/easdl.2017.2.27.1.41

Study on the Quality Characteristics and Retarding Retrogradation of Pound Cakes containing Teff (Eragrostis tef) Flour  

Joung, Ki Youeng (Dept. of Food and Nutrition, Korea University)
Song, Ka-Young (Dept. of Food and Nutrition, Korea University)
O, Hyeonbin (Dept. of Food and Nutrition, Korea University)
Zhang, Yangyang (Dept. of Food and Nutrition, Korea University)
Shin, So Yeon (Dept. of Food and Nutrition, Korea University)
Kim, Young-Soon (Dept. of Food and Nutrition, Korea University)
Publication Information
Journal of the East Asian Society of Dietary Life / v.27, no.1, 2017 , pp. 41-49 More about this Journal
Abstract
This study investigated the effects of teff flour on the properties of pound cakes. Five types of pound cakes were made by addition of 0% (Control), 5% (TF5), 10% (TF10), 15% (TF15), and 20% (TF20) of teff flour based on wheat flour. Specific gravity of pound cake batter showed no significant differences among samples as 0.54 (p<0.05). Baking loss was the highest in the control at 5.92% and the lowest in TF20 at 5.27%. Batter yield was the highest in TF20 at 94.73% and the lowest in control at 94.08%. Moisture content was the highest in TF20 at 23.68% and the lowest in control at 21.32%. pH showed no significant differences among samples at 7.61~7.65 (p<0.05). a-values of crumb significantly increased while L-values and b-values significantly decreased with added teff flour amounts. (p<0.05). ${\Delta}E$ values significantly increased with teff flour at 34.32~49.24 (p<0.05). Hardness was lowest in TF20 at $180.60g/cm^2$. Springiness was the lowest in TF20 at 85.37%. Cohesiveness showed no significant differences among samples (p<0.05). Chewiness was the lowest in TF20 at 172.17 g. Hardness more rapidly increased in control at $273.13{\sim}26,123.33g/cm^2$ than that of pound cakes with teff flour. Avrami exponent (n) was the highest in the control at 3.5987 and the lowest in TF20 at 1.2144. In sensory evaluation, flavor of TF20 was higher than that of the control at 4.43. Overall acceptability had a higher score in TF20 than in the control. It is considered that addition of 20% teff flour can improve the quality characteristics and retard retrogradation of pound cake.
Keywords
Avrami exponent; pound cake; quality characteristics; retarding retrogradation; teff;
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Times Cited By KSCI : 15  (Citation Analysis)
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