Browse > Article

Characteristics of Kiwifruit-Added Traditional Kochujang  

Kim, Young-Soo (Faculty of Biotechnology(Food Science and Technology Major), Chonbuk National University)
Song, Geun-Seoup (Department of Food Engineering, Iksan National College)
Publication Information
Korean Journal of Food Science and Technology / v.34, no.6, 2002 , pp. 1091-1097 More about this Journal
Abstract
In order to improve palatability and quality of traditional kochujang, kiwifruit (Actinidia deliciosa) was added to traditional kochujang fermented for 3 months. Physicochemical and microbial characteristics were investigated during fermentation at $30^{\circ}C$. Moisture contents of all treated kochujangs increased with increasing amount of kiwifruit added during fermentation. pH of kiwifruit-added kochujang was lower than that of the control kochujang, whereas no significant differences in titratible acidity was observed among all treatments. Crude protein and salt contents of kiwifruit-added kochujang were lower than those of the control, whereas no difference in crude fat contents were found. Ethanol and amino-nitrogen contents of 6 and 9% kiwifruit-added kochujang were higher than those of the control. Fructose contents of kiwi-added kochujangs were higher than that of the control. Major organic acids of kochujang were in the order of malic acid > citric acid > succinic acid > acetic acid > lactic acid > oxalic acid. Succinic acid level increased significantly during fermentation and was higher in kiwifruit-added kochujang than in the control. Bacterial cell counts of all treatments were not different, and viable cell count of yeast was slightly higher in kiwifruit-added kochujang only at the initial fermentation period. Sensory evaluation revealed that the addition of 9% kiwifruit was the optimum condition for improving kochujang quality.
Keywords
kochujang; kiwifruit; physicochemical properties; microflora; sensory evaluation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Choo, J.J. Anti-obesity effects of kochujang in rats fed on a highfat diet. Korean J. Nutr. 33: 787-793 (2000)
2 Lee, Y.S., Kang, C.S. and Lee, Y.S. Changes in composition of pumpkin kochujang during fermentation. KGARR 9: 193-198 (1998)
3 Yoo, M.S., Park, H.J. and Chnag, C.M. The quality improvement of gochujang (Korean red pepper paste) by adding ground garlic. RDA. J. Agri. Sci. 37: 709-714 (1995)
4 Shin, D.H., Kim, D.H., Choi, U., Lim, M.S. and An, E.Y. Taste components of traditional kochujang prepared with various raw materials. Korean J. Food Sci. Technol. 29: 913-918 (1997)
5 Kang, S.G., Park, I.B. and Jung, S.T. Characteristics of fermented hot pepper soybean paste (kochujang) Prepared by liquid beni-koji. Korean J. Food Sci. Technol. 29: 82-89(1997)
6 National Miso Technical Federation. Standard Miso Analysis, pp. 1-34. Pyung Chang Dang, Tokyo, Japan (1968)
7 SAS Institue, Inc. SAS User's Guide. Statistical Analysis Systems Institute, Cary, NC, USA (1992)
8 Shin, D.H., Kim, D.H., Choi, U., Lim, E.K. and Lim, M.S. Studies on the physicochemical characteristics of traditional kochujang. Korean J. Food Sci. Technol. 28: 157-161 (1996)
9 Kwon, D.J., Jung, J.W., Kim, J.H., Park, H.J., Yoo, J.Y., Koo, Y.J. and Chung, K.S. Studies on establishment of optimal aging time of korean traditional kochujang. Aghc. Chem. Biotechnol. 39: 127-133(1996)
10 Park, J.S., Lee, T.S., Kye, H.W., Ahn, S.M. and Noh, B.S., Study on the preparation of kochujang with addition of fruit juices (in Korean). Korean J. Food Sci. Technol. 25: 98-104 (1993)
11 Shin, D.H., Kim, D.H., Choi, U., Lim, E.K. and Lim, M.S. Studies on the physicochemical characteristics of traditional kochujang. Korean J. Food Sci. Technol. 28: 157-161 (1996)
12 Shin, D.H. Kim, D.H. Choi, U., Lim, M.S. and An, E.Y, Physicochemical characteristics of traditional kochujang prepared with various raw materials. Korean J. Food Sci. Technol. 29: 907-912 (1997)
13 Kim, D.H. and Lee, J.S. Effect of condiments on the physicochemical characteristics of traditional kochujang durmg fermentation. Korean J. Food Sci. Technol. 33: 353-360 (2001)
14 Shin, D.B., Pack, W.M., Lee, O.S., Koo, M.S. and Chung, K.S. Effect of storage temperature on the physicochemical characteristics in kochujang (red pepper soybean paste). Korean J. Food Sci. Technol. 26: 300-304 (1994)
15 Joo, J.J. and Shin, H.J. Sensory evaluation and changes in physicochemical properties, and microflora and enzyme activities of pumpkin-added kochujang. Korean J. Food Sci. Technol. 32: 851-859 (2000)
16 Shin, D.H., An, E.Y, Kim, Y.S. and Oh, J.Y. Changes in physicochemical characteristics of kochujang prepared with different koji during fermentation. Korean J. Food Sci. Technol. 33: 256-263 (2001)
17 Lee, K.S. and Kim, D.H. Effect of sake cake on the quality of low salted kochujang. Korean J. Food Sci. Technol. 23: 109-115 (1991)
18 Lee, H.Y., Park, K.H., Min, B.Y, Kim, J.P. and Chung, D.H. Studies on the change of composition of sweet potato kochujang during fermentation. Korean J. Food Sci. Technol. 10: 331-336 (1978)
19 Yu, T.J. Food Oriental Medicine Handbook, pp. 569. Academibook, Seoul,Korea(1999)
20 Shin, D.H., An, E.Y, Kim, Y.S. and Oh, J.Y. Changes in microflora and enzymes activities of kochujang prepared with different koji during fermentation. Korean J. Food Sci. Technol. 33: 94-99 (2001)
21 Lee, K.S. and Kim, D.H. Trial manufacture of low-salted kochujang (Red pepper soybean paste) by the addition of alcohol. Korean J. Food Sci. Technol. 27: 146-154 (1985)
22 Kim, D.H., Effect of condiments on the microflora, enzyme activities and taste components of traditional kochujang during fermentation. Korean J. Food Sci. Technol. 33: 264-270 (2001)
23 Ministry of Aghculture and Forestry. Standard Collection of Traditional Food, pp. 90-97 (Standard number T014-1993). Seoul (1999)
24 Shin D.H., Kim, D.H., Choi, U., Lim, D.K. and Lim, M.S. Studies on taste components of traditional kochujang. Korean J. Food Sci. Technol. 28: 152-156 (1996)
25 Park, K.Y., Kong, K.R. Jung, K.O. and Rhee, S.H. Inhibitory effects of kochujang extracts on the tumor formation and lung metastasis in mice. J. Food Sci. Nutr. 6: 187-191 (2001)
26 Shin, D.H., Kim, D.H., Choi, U., Lim, M.S. and An, E.Y. Changes in microflora and enzymes activities of traditional kochujang prepared with various raw materials. Korean J. Food Sci. Technol. 29: 901-906 (1997)