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http://dx.doi.org/10.3746/jkfn.2010.39.2.287

Effect of Lilium davidi's Root Powder Additions on the Rheology of the Dough and Processing Adaptability for Bread  

Joung, Yong-Myeon (Dept. of Confectionery & Hotel Baking, Changwon College)
Lee, Kyung-Seok (Dept. of Food & Biotechnology, Hoseo University)
Hwang, Seong-Yun (Dept. of Food & Biotechnology, Hankyong University)
Son, Man-Ja (Chungnam Confectionery Academy)
Lee, Ki-Young (Dept. of Food & Biotechnology, Hoseo University)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.39, no.2, 2010 , pp. 287-293 More about this Journal
Abstract
Regarding the physical properties of wheat flour added with lily's root powder, elasticity in farinograms tended to increase as the ratio of added lily's root powder increased. However, viscoelasticity, absorptivity, absorption time, and stability tended to decrease after an initial increase when a certain ratio of lily's root powder was added to the wheat flour. Results from the rapid viscosity analyzer (RVA) indicated that the retention strength, final viscosity, break down, set back value, $P_{max}$ value of the alveogram, and falling number value decreased. As for gaseous release, measured with a rheofermentometer, the total amount of $CO_2$ gas generated and retained tended to decrease. As for the gelatinizing properties in terms of differences in the granularity and the amount of lily's root powder (bulbs) added to wheat flour, the initial gelatinization temperature had no effect regardless of the type or amount of general grinding and minute (ultra-fine, $10\;{\mu}m$) lily's root powder. Meanwhile, the peak viscosity and peak viscosity time exhibited significant differences in 3, 5% general grinding lily's root powder additive groups. On the other hand, there was no significant difference between 3, 5% minute lily's root powder additive groups. This is likely because the activity of the enzyme in wheat flour decreased relatively and differences in the lily's root powder granularity resulted in a variation in water absorptivity. In the preference test, flavor retention of the functional bread increased according to the granularity of lily's root powder and the ratio of added lily's root powder, thus resulting in significant differences in the mouth feel and flavor; the texture and crumb color, however, did not exhibit significant differences.
Keywords
Lilium davidi; dough; bread; rheology; adaptability;
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Times Cited By KSCI : 3  (Citation Analysis)
Times Cited By SCOPUS : 0
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