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Changes in Quality Characteristics of Meju Made with Germinated Soybean during Fermentation  

Choi, Ung-Kyu (Department of Oriental Medicinal Food and Nutrition, Asia University)
Kim, Mi-Hyang (Department of Food Science&Nutrition, Sangju National University)
Lee, Nan-Hee (Department of Food Science and Nutrition, Catholic University of Daegu)
Jeong, Yeon-Shin (Soyventure Co. Ltd., Kyungpook National University, Division of Plant Biosciences, Kyungpook National University)
Hwang, Young-Hyun (Soyventure Co. Ltd., Kyungpook National University, Division of Plant Biosciences, Kyungpook National University)
Publication Information
Korean Journal of Food Science and Technology / v.39, no.3, 2007 , pp. 304-308 More about this Journal
Abstract
This research was conducted to investigate the changes in quality characteristics of meju made with 24-hour germinated soybeans according to fermentation time. The study confirmed that the amino nitrogen content immediately after soaking was 15.5 mg%, and the content rapidly increased in the beginning of the germination process and continued to increase to 312.9 mg% by 48 hours of fermentation. The number of fungi in the whole soybean meju made with 24-hour germinated soybeans was higher than the numbers of bacteria and yeast since the Aspergillus oryzae was inoculated artificially. The content of organic acids, in which the amount of citric acid was highest followed by tartaric acid and malic acid, increased with the fermentation process. The level of free amino acids in the whole soybean meju made from the 24-hour germinated soybeans increased rapidly with fermentation. The free amino acid content after 48 hours of fermentation (2,513.5 mg%) was 5.7 times higher than the content of the soaked germinated soybeans. The content of glutamic acid was highest followed by aspartic acid, lysine, leucine, and proline. The ratio of glutamic acid to the total free amino acids at 48 hours fermentation was 21.2% for the whole soybean meju. It was confirmed that the total isoflavone content, in which the content of genistein was highest followed by daidzein and glycitein, increased at the beginning of the fermentation process, but did not change thereafter.
Keywords
germination; whole soybean meju; free amino acid; isoflavone;
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1 Choi JH, Kim MH, Shon MY, Park SK, Choi SD, U H. Production and quality properties of capsule type meju prepared with Rhizopus oligosporus. Korean J. Food Pres. 9: 315-320 (2002)
2 Kim WJ, Smit CJB, Nakayama TOM. The removal of oligosac-charides from soybeans. Lebensm.-Wiss. Technol. 6: 201-204 (1973)
3 Kim JS, Yoon S. Isoflavone contents and {\beta}$-glucosidaste activities of soyeans, meju, and doenjang. Korean J. Food Sci. Technol. 31: 1405-1409 (1999)   과학기술학회마을
4 Lee SS. Meju fermenation for a raw material of Korean traditional soy products. Korean. J. Mycol. 23: 161-175 (1995)   과학기술학회마을
5 Yoo JY, Kim HG. Characteristics of traditional mejus of nationwide collection. J. Korean Soc. Food Sci. Nutr. 27: 259-267 (1998)   과학기술학회마을
6 Yoo JY, Kim HG. Changes in microflora and exzyme activities of traditional meju during fermentation at Sunchang area. J. Korean Soc. Food Sci. Nutr. 30: 250-255 (2001)   과학기술학회마을
7 Chung YG, Son DH, Ji WD, Choi UK, Kim YJ. Characteristics of commercial sigumjang meju. Korean J. Food Sci. Technol. 31: 231-237 (1999)   과학기술학회마을
8 Park JM, Oh HI. Changes in microflora and exzyme activities of traditional kochujang meju during fermentation. Korean J. Food Sci. Technol. 27: 56-62 (1995)   과학기술학회마을
9 Kim YH, Hwang YH, Lee HS. Analysis of isoflavones for 66 varieties of sprout beans and bean sprouts. Korean J. Food Sci. Technol. 35: 568-575 (2003)   과학기술학회마을
10 Kim IJ, Lee JO, Park MH, Son DH, Ha YL, Ryu CH. Preparation method of meju by three step fermentation. Korean J. Food Sci. Technol. 34: 536-539 (2002)   과학기술학회마을
11 Yang SH, Choi MR, Kim JK, Chung YG. Characteristics of the taste in traditional Korean soybean paste. J. Korean Soc. Food Nutr. 21: 443-448 (1992)   과학기술학회마을
12 Kurzer MS, Xu X. Dietary phytoestrogens. Annu. Rev. Nutr. 17: 358-387 (1997)
13 Kim EM, Lee KG, Chee KM. Comparison in isoflavone contents between soybean and soybean sprouts of various soybean cultivars. J. Korean Soc. Nutr. 37: 45-51 (2004)
14 Kim DH, Lim DW, Bai S, Chun SB. Fermentation chracteristics of whole soybean meju model system inoculated with 4 Bacillus strains. Korean J. Food Sci. Technol. 29: 1006-1015 (1997)   과학기술학회마을
15 Kim EJ, Lee KI, Park KY. Effects of germanium treatment during cultivation of soybean sprouts. J. Korean Soc. Nutr. 31: 615-620 (2002)   과학기술학회마을   DOI
16 Ha SD. Evaluation of dryfilm method for isolation of microorganisms from foods. Korean J. Appl. Microbiol. Biotechnol. 24: 178-184 (1996)
17 Kim JS, Kim JG, Kim WJ. Changes in isoflavone and oligosac-charides of soybeans during germination. Korean J. Food Sci. Technol. 36: 294-298 (2004)   과학기술학회마을
18 Official Methods of Analysis. Korea Food and Drug Administration, Seoul, Korea. pp. 9-15 (2002)
19 Lee HY, Kim JS, Kim YS, Kim WJ. Isoflavone and quality improvement of soymilk by using germinated soybean. Korean J. Food Sci. Technol. 37: 443-448 (2005)   과학기술학회마을
20 Lee JJ, Ko HY. Standardizatin of Korean soysauce. Korean J. Food Sci. Technol. 8: 247-252 (1976)   과학기술학회마을
21 Yang CB, Kim ZU. Changes in nitrogen compounds in soybean sprout. J. Korean Agric. Chem. Soc. 23: 7-13 (1980)   과학기술학회마을
22 Park CK, Nam JH, Sng HI, Park HY. Studies on the shelf life of the grain shape improved meju. Korean. J. Food Sci. Technol. 21: 876-883 (1989)
23 Park JS, Lee MR, Kim JS, Lee TS. Composition of nitrogen compound and amino acid in soybean paste (doenjang) prepared with different microbial sources. Korean J. Food Sci. Technol. 26: 609-615 (1994)   과학기술학회마을
24 Kim DH, Yook HS, Kim KY, Shin MG, Byun MW. Fermentative characteristics of extruded meju by the molding temperature. J. Korean Soc. Food Nutr. 30: 250-255 (2001)   과학기술학회마을
25 Lee SH, Chung DH. Studies on the effects of plant growth regulator on growth and nutrient compositions in soybean sprout. J. Korean Agric. Chem. Soc. 25: 75-82 (1982)   과학기술학회마을
26 Shon MY. Physcochemical properties and biological activities of chungkugjang produced from Korean black bean. PhD thesis, Gyeongsang National University, Jinju, Korea. (1999)
27 Yoo JY, Kim HK, Kim WJ. Physico-chemical and microbiological changes of traditional meju during fermentation in Gangwondo area. Korean J. Food Sci. Technol. 30: 908-915 (1998)
28 Im MH, Choi JD, Chung HC, Lee SH, Lee CWm Choi C, Choi KS. Improvement of meju preparation method for the production of Korean traditional ganjang (soy sauce). Korean J. Food Sci. Technol. 30: 608-614 (1998)   과학기술학회마을
29 Difco Laboratories. Difco Manual. 10th ed. Detroit, MI, USA. pp. 689-1131 (1984)
30 Oh BY, Park BH, Ham KS. Changes of saponin during the cultivation of soybean sprout. Korean J. Food Sci. Technol. 35: 1039-1044 (2003)
31 Choi UK, Chung YS, Kim MH, Lee NH, Hwang YH. Quality characteristics of Meju according to germination time of raw soybean (Glycine max: Hwnagkumkong). Food Sci. Biotechnol. 16: in press (2007)   과학기술학회마을
32 Wang G, Kuan SS, Francis OJ, Ware GM, Carman AS. A simplicfied HPLC method for the determnation of phytoestrogens in soybean and its processed products. J. Agr. Food Chem. 38: 185-190 (1990)   DOI
33 Park CK, Joo HN, Song HI. Studies on the shelf-life of the brick shape improved meju. Krean J. Food Sci. Tecnol. 22: 82-87 (1990)
34 Kwon OJ, Choi UK, Lee EJ, Cho YJ, Cha WS, Son DH, Chung YG. Chemical changes of meju made with barley bran bran during fermentation. Korean J. Food Sci. Technol. 32: 1135-1141 (2000)   과학기술학회마을
35 Wang HJ, Murphy PA. Isoflavone content of commercial soybean foods. J. Agr. Food Chem. 42: 1666-1673 (1994)   DOI   ScienceOn