• Korean journal of food and cookery science
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• v.25 no.1
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• pp.106-118
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• 2009

This study was to investigated optimum preparation conditions for Gugija Heukimja jook by response surface methodology (RSM). The important materials used for the Gugija Heukimja product were Lycium chinese, Seasamum indicum L., Ziziphus jujuba Mill. and rice. Moisture content, crude protein, crude fat, crude ash and crude fiber content were 15.62, 16.60, 13.62, 4.93 and 11.17% for Lycium chinese, 3.62, 20.94, 43.56, 5.67 and 10.72% for Seasamum indicum L., 24.12, 5.38, 0.73, 2.30 and 1.25% for Ziziphus jujuba Mill., and 12.36, 6.98, 0.46, 0.43 and 0.41% for rice, respectively. Optimal extraction conditions of brix, color, pH and total acidity in the materials for Gugija Heukimja jook were temperature $80^{\circ}C$, water volume 850 mL and extraction time of 63 min. The spreadability of jook with Lycium chinese and Ziziphus jujuba Mill. extracts was the highest when black sesame was 12 g pH was the lowest when black sesame was 9 g. PH showed a significant difference when the added black sesame ratio changed. The 'value L' of chromaticity was lower with an increase of the black sesame ratio, 'value a' was higher with an increase of the black sesame ratio, 'value b' was lower with an increase of the black sesame ratio. Brix was lower when black sesame in jook was added. Total acidity was highest (7.27%) when black sesame was 12 g. The degree of gelatinization tended to be lower with additional black sesame. Higher scores of sensory evaluation were found for the product containing 9 g black sesame with Lycii furctus and Ziziphus jujuba Mill. extracts ompared to the other samples with 3 and 6g. No significant difference in taste occurred for Gugija Heukimja jook prepared with over 9 g black sesame, while a great difference showed in color, pH and total acid. Therefore, the Gugija Heukimja jook prepared under the optimal conditions of 9 g black sesame with Lycium chinese and Ziziphus jujuba Mill. extracts exhibited higher qualities. Gugija Heukimja jook can use the easier for Yacksun jook. It is expected to become functional in the product's development.

• Journal of the Korean Society of Food Culture
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• v.31 no.4
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• pp.325-338
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• 2016

The objective of this study was to review Dasik's recipe of Jong-Ga in the Gyeongbuk area. Main methods of this study were literature review and in-depth interview. To study the historical transition of traditional Dasik, analysis of 11 cooking books from the 1400's to 1800's was carried out. Jong-Ga was made using Dasik and main ingredients were Songhwa, Kka and Kong Dasik. Special Dasik was in nine of Jong-Ga (Ipjae's head family of Pungyang Jo's clan, Sojea head family Gwangju No's clan, Sawoodang head family Uiseong Kim's clan, Heobaekdang's head family of Bukye Hong's clan, Taechon's head family of Gyeseong Go's clan, Gwiam's head family of Gwangju Lee's clan, Songdang's head family of Milyang Park's clan, Haeweol's head family of Pyeonghae Hwang's clan, Galyam's head family of Jaeryoung Lee's clan) and Dasik are Gamphi dasik, Heukimja dasik, Baksulgi dasik, Tibap dasik, Daechu dasik, Yukpo dasik, Misutgaru dasik, Dotori dasik and Omija Dasik. It was used as a ritual food and reception food for guests. These recipes are good examples of functional and modern of Korean food. In the future, Dasik as well as discovery of ingredients in other foods of Jong-Ga are needed