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http://dx.doi.org/10.9721/KJFST.2021.53.5.640

Quality characteristics of takju by different method of rice pre-treated  

Lee, Dae-Hyoung (Gyeonggi-do Agricultural Research Extension Services)
Seo, Jae-Soon (Gyeonggi-do Agricultural Research Extension Services)
Shin, Bok-Eum (Gyeonggi-do Agricultural Research Extension Services)
Lee, Yong Seon (Gyeonggi-do Agricultural Research Extension Services)
Cho, Chang Hui (Gyeonggi-do Agricultural Research Extension Services)
Publication Information
Korean Journal of Food Science and Technology / v.53, no.5, 2021 , pp. 640-647 More about this Journal
Abstract
In this study, we analyzed three rice pre-treatment methods for the preparation of mit-sool (first mashing), with godubap (steamed rice), beombeok (undercooked porridge), and juk (porridge). The results can provide basic data for the development of takju with improved quality. In terms of the base alcohol, godubap produced the highest amount of alcohol (8.1%) after two days, followed by beombeok and juk. After two days of fermentation, soluble solids were measured at 15.3, 15.1, and 1.4°Brix in beombeok, juk, and godubap, respectively, The glucose content of godubap did not change significantly; however, the maltose content increased. In beombeok, maltose decreased from 16.48 mg/mL on the initial day 0 to 1.27 mg/mL on day 9. In juk, glucose and maltose increased from 14.05 and 11.49 mg/mL on day 0 to 31.39 and 42.53 mg/mL on day 2, respectively. Succinic acid levels increased in the godubap and beombeok mit-sool. However, succinic acid was not detected in godubap and juk during the initial stage of fermentation, and lactic acid was not detected in beombeok mit-sool. During the fermentation stage of deot-sool (second mashing), the highest alcohol content of takju made with godubap alcohol was 18.0% and the lowest alcohol content was 15.1% in beombeok on day 9. The total acidity was as high as 0.54% for beombeok, 0.41% for juk, and 0.39% for godubap. In the flavor analysis, ethyl caprate and ethyl caprylate, which were high on day 0 in godubap, decreased upon the completion of fermentation on day 9. Banana-flavored isoamyl alcohol content increased. For juk, ethyl caprate and ethyl caprylate, which were high on day 0, decreased on day 9. Flavor components, such as ethyl palmitate and ethyl linoleate were increased.
Keywords
takju; godubap; beombeok; juk; pretreatment;
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Times Cited By KSCI : 2  (Citation Analysis)
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