Food Science and Biotechnology

Korean Society of Food Science and Technology (한국식품과학회)
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Evaluation of Barley Bran Sauce Aroma by Multiple Regression Analysis

  • Choi, Ung-Kyu (Department of Oriental Medical Food and Nutrition, Asia University)
  • Published : 2005.10.31
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Abstract

The relationship between the gas chromatographic (GC) patterns of sauce made of barley bran and ranked order in sensory analysis was investigated by multiple regression analysis (MRA). Most of the 42 barley bran sauce samples comprised about 34 peaks, in which the content of 9, 12-octadecanoic acid methyl ester was the highest, followed by those of 2-furanmethanol and 2-furancarboxaldehyde. It is difficult to estimate the aroma quality of barley bran sauce samples on the basis of only one peak. The 34 aroma compounds of the 42 samples were analyzed by an MRA model featuring six transformations. The most precise fit was calculated from the absolute value transformed with the root square of each peak, and the multiple determination coefficient showed that 91.6% of the variation in the sensory score could be explained on the basis of GC data.

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