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Difference in Volatile Flavor Components among Milling Fractions of Wheat  

Han Ouk-Kyu (Honam Agricultural Research Institute, NICS, RDA)
Kim Yang-Kil (Honam Agricultural Research Institute, NICS, RDA)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.50, no.6, 2005 , pp. 442-446 More about this Journal
Abstract
This study was conducted to obtain basic information on the utilization of wheat flour for good organoleptic evaluation score. Wheat seed was milled by Buhler test mill. Volatile flavor compounds of five milling fractions such as Break $I{\cdot}II (B_1+B_2)$, Reduction I ($R_1$), Reduction II ($R_2$), Bran and Short were determined and their differences were discussed. There was significant difference in quantity of flavor compounds but no difference in qualitative composition among milling fractions. The outer layer of wheat endosperm ($R_2$ layer) showed higher amount of m-xylene and n-butanol in volatile flavor com­pounds compared with inner endosperm layer ($B_1,\;B_2,\;R_1$). The $R_2$ layer showed quantitatively higher composition of major flavor compounds than inner endosperm layer ($B_1,\;B_2,\;R_1$). This result points out that the $R_2$ layer exhibited stronger flavor than $B_1,\;B_2$, and Rl layers.
Keywords
wheat; volatile flavor components; milling fractions;
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