• Journal of the Korean Society of Food Science and Nutrition
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• v.35 no.9
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• pp.1194-1199
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• 2006

Effects of Korean traditional soybean fermented foods on weight reduction and lipid lowering activities were studied using Spraque-Dawley (SD) rats fed a high fat diet. The rats were raised for four weeks after adaptation period on either a normal diet (ND, based on the AIN-93 diet), high fat diet (HFD, supplemented with 12% lard oil in the ND), or diets containing 10% of freeze dried Doenjang, Chungkukjang, Kochujang, or Samjang to HFD. The final weight, food efficiency ratio (FER) and the weight of adipose tissue were decreased significantly by the consumption of Doenjang and Samjang, compared to HFD (p<0.05). The contents of cholesterol and triglyceride increased by HFD were reduced by the fermented foods in liver and perirenal fat tissues of the rats, especially Doenjang and Samjang diets showed high lipid lowering activity. And TG and cholesterol contents in the plasma serum were simillar trend to liver and perirenal fat tissue. These results suggested that Korean traditional soybean fermented foods, especially Doenjang showed the highest weight reduction and lipid lowering activities of the rats fed high fat diet.

• Proceedings of the Korean Society of Food and Cookery Science Conference
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• 2001.06a
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• pp.298-308
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• 2001

장류는 콩을 주재료로 하는 우리 나라의 전통적인 발효식품으로서 중요한 조미료로 사용되고 있다. 장의 종류는 우리 고유의 전통식 제법에 의한 재래형과 일본식 또는 중국식 제법에 의한 외래형으로 나눌 수 있는데 간장, 된장, 청국장, 고추장 등이 포함된다. 또한 가정에서 담그는 장류와 산업체에서 다량 제조하는 것으로 나눌 수 있다. 장류는 그 원료, 지방의 기후, 환경 등 기타 요인에 의해 변화를 보이며 제조법이 차이가 나는데 맛은 메주에 의해 좌우된다 우리 나라에서 장류가 산업적으로 생산하기 시작한 것은 일본인의 정치 침투와 더불어 시작되었으며, 해방이후 국군이 창설되면서 수요가 갑자기 증가하였다. 또한 서구화의 영향으로 사회구조가 바뀌고 인구의 도시집중화, 주택구조 변화와 자가 제조 등의 어려움으로 공장제품에 대한 수요가 따라서 증가하였다. 최근에는 장류는 조미료로서의 역할 이외에 영양 강화나 생리활성물질을 함유한 식품으로서 그 가치를 찾을 수 있다. 우선 장류가 어떻게 발전되어 왔으며, 가정에서 담가먹지 않고 시판 중인 제품을 구입하는 경우 어떤 종류의 장이 판매되고 있으며 어느 산업체에서 생산되고 있는지 알아본다. 현재 장류를 상품화하고 또 편의식품화 하려고 할 때 문제점과 장류 산업이 나아가야 할 방향에 대해 소개하고자 한다.

• Korean Journal of Food Science and Technology
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• v.45 no.2
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• pp.221-226
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• 2013

This study aimed to examine the antioxidant, tyrosinase inhibitory, and anti-proliferative activities (A549, G361, HT-29, and MDA-MB-231) of fermented gochujang (made from sword bean cheonggukjang powder (SBC) for 90 days. Gochujang was prepared by adding 0 (SBC 0), 2 (SBC 2), 5 (SBC 5), 8 (SBC 8) and 10% (SBC 10) levels with SBC, and all experiments were measured at diluted levels of 20, 50 and 100 times. The antioxidant activity and tyrosinase inhibitory effect demonstrated that SBC 10 increased approximately 1.2 and 1.1 times compared with SBC 0, respectively, at diluted levels of 50 and 100 times. The anti-proliferative effects of A549, G361, and HT-29 presented that SBC 10 were 2.8, 1.1, and 8.9 times higher compared with SBC 0, respectively, at diluted levels of 50, 20, and 100 times. In the case of MDA-MB-231, SBC 10 was 3.7 times higher compared with SBC 5 at diluted level of 20 times. As a result, we confirmed that SBC gochujang was improved for physiological activities and anti-proliferative effects.

• Journal of Nutrition and Health
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• v.41 no.5
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• pp.439-447
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• 2008

There is a limitation to estimate vitamin $B_{12}$ intake due to lack of data on vitamin $B_{12}$ content in many Korean foods. In this study, vitamin $B_{12}$ content was determined in some soybean or vegetable-fermented foods, edible seaweeds and other frequently consumed foods in Korea by microbioassay using Lactobacillus delbruecki ATCC 7830. The traditional type of Doenjang and Chungkookjang contained 1.85 ${\mu}g/100$ g and 0.69 ${\mu}g/100$ g of vitamin $B_{12}$, respectively, while the factory-type of Doenjang and Chungkookjang contained 0.04-0.86 ${\mu}g/100$ g and 0.06-0.15 ${\mu}g/100$ g. Vitamin $B_{12}$ was not detected in steamed soybeans and Tofu which is a not-fermented soybean product, indicating that vitamin $B_{12}$ in Doenjang and Chungkookjang might be produced during the fermentation process. The Korean-style soy sauce contained 0.04 ${\mu}g$ vitamin $B_{12}$/100 mL, but vitamin $B_{12}$ was not detected in Japanese-style soy sauce and white miso. Commercial Kimchi, a representative Korean vegetable- fermented food, made of Korean cabbage, Yeolmu, or Mustard leaves contained 0.013-0.03 ${\mu}g$ vitamin $B_{12}$/100 g, while Kimchi without red pepper and fermented fish sauce (White Kimchi) did not. Vitamin $B_{12}$ content was very high in some edible seaweeds such as laver (66.76 ${\mu}g/100$ g dry weight) and sea lettuce (84.74 ${\mu}g/100$ g dry weight), and it was 17.12 ${\mu}g/100$ g of dried small anchovy, 1.07 ${\mu}g/100$ g of whole egg, and 0.02 ${\mu}g/100$ g of coffee mix. From these results, it is assumed that Koreans take substantial amount of vitamin $B_{12}$ from plant-origin foods. And, with these data, we will be able to calculate dietary vitamin $B_{12}$ content more correctly than before. In conclusion, soybean-fermented foods, Kimchi, laver and sea lettuce are recommendable as good sources of vitamin $B_{12}$ for vegetarians or Korean elderly on grain and vegetable based diet.

• Journal of Life Science
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• v.34 no.4
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• pp.254-263
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• 2024

Korean jang is a food made using fermented soybeans, and the typical products include gochujang (GO), doenjang (DO), cheonggukjang (CH), and ganjang (GA). In this study, 16S rRNA metagenome analysis was performed on a total of 200 types of GO, DO, CH, and GA using next-generation sequencing to analyze the microbial community of fermented soybean foods and compare taxonomic (biomarker) differences. Alpha diversity analysis showed that in the CHAO index, the species richness index tended to be significantly higher compared to the DO and GA groups (p<0.001). The results of the microbial distribution analysis of the GO, DO, CH, and GA products showed that at the order level, Bacillales was the most abundant in the GO, DO, and CH groups, but Lactobacillales was most abundant in the GA group. Linear discriminant analysis effect (LEfSe) analysis was used to identify biomarkers at the family and species levels. Leuconostocaceae, Thermoactinomycetaceae, Bacillaceae, and Enterococcaceae appeared as biomarkers at the family level, and Bacillus subtilis, Kroppenstedtia sanguinis, Bacillus licheniformis, and Tetragenococcus halophilus appeared at the species level. Permutational multivariate analysis of variance (PERMANOVA) analysis showed that there was a significant difference in the microbial community structure of the GO, DO, CH, and GA groups (p=0.001), and the microbial community structure of the GA group showed the greatest difference. This study clarified the correlation between the characteristics of Korean fermented foods and microbial community distribution, enhancing knowledge of microorganisms participating in the fermentation process. These results could be leveraged to improve the quality of fermented soybean foods.

• Bulletin of Food Technology
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• v.11 no.4
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• pp.8-33
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• 1998

조미식품과 관련된 용어로서는 양념, 조미료, 등이 있고 영어로는 Seasonings, Flavorings, Condiments, Spice등이 있다. 사전적인 의미에서 약간의 차이가 있을지 몰라도 조미식품이란 직접 음용하는 일은 드물고 주로 다른 식품의 풍미를 증진시키는데 이용되는 모든 식품을 말하며 일반사전에는 없는 일종의 '합성어'이다. 따라서 한마디로 정의하기 어렵고 다른 식품과의 구분도 애매한 편이다. 우리나라 표준산업 분류에는 조미식품 제조업이란 분류는 없다. 한편, 식품공전에서는 조미식품을 "식 등의 풍미를 돋우기 위한 목적으로 사용되는 장류, 시초, 소스류, 토마토 케첩, 카레, 고춘가로 및 실고추 향신료가공품, 드레싱, 복합조미식품, 향미유 등의 제품을 말한다"고 정의되어 있다. 이 중 장류에는 간장, 된장, 고추장, 춘장, 청국장 등이 포함되며, 소스류에는 우스타소스 등 서양풍 소스는 물론이고 불고기양념등과 같은 우리의 전통양념류를 포함한다. 우리나라 경우 드레싱보다는 마요네즈가 먼저 소개되어 현재 생산량이나 소비량에서 압도적으로 우위에 있기 때문에 마요네즈가 널리 알려져 있으나, 마요네즈는 샐러드드레싱, 프렌치드레싱 등과 마찬가지로 드레싱의 일종으로 보는게 타당하다. "소스"라는 말도 넓은 의미에서는 조미식품 의 대부분을 포함하며, 좁은 의미로는 현재 식품공전에서 말하는 제품류들이다. 이처럼 조미식품이라 하면 시초, 토마토 케첩 및 소스류, 마요네즈 및 드레싱류, 카레 및 천연향신료 등을 포함하는 좁은 의미를 뜻하는 경우가 많다. 본문은 이중에서 천연향신료를 중심으로 그 원료소재에 따른 기능별 효과를 다루고자 한다.

• Journal of the Korean Society of Food Science and Nutrition
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• v.26 no.4
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• pp.714-725
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• 1997

The purpose of this study was to investigate pattern of consumption of Korean fermented foods. The questionnaires have been collected from 290 housewives in Taejon. Kimchi was the most frequently selected for meal preparation among Korean fermented foods. Ninety seven percentage of housewives used Kimchi over once a day and 87%, every meal. Chin-ganjang, Kuk-ganjang, Kochujang and Doenjang have been consumed over once a day by 47%, 46%, 31% and 27% of housewives respectively, which indicated that those jangs were still essential seasonings for preperation of Korean foods. The percentage of housewives, who did not use Chonggukjang, Jot-kal and Jangatchi, were 18%, 19% and 22% respectively, With the educational level increasing and age decreasing, the frequency of consumption Kimchi, Jangat-chi, Doenjang, Kochujang, Jot-kal and Chonggukjang became lower. Extended family often used Doenjang more than nuclear family. Working housewives utilized more Jot-kal than full time housewives. Seventy four percentage of housewives replied that the consumption of Korean fermented foods came to reduce. The reasons were that the kinds of foods increased(54%), food preference of children was changed (27%), side dishes were increased(10%), and food preference of adults was changed(9%). Kimchi has been made by housewives themselves(86%) and by relatives(11%). It means that most housewives prefer home-made Kimchi. Half of housewives used jangs made by themselves. The younger and the higher in educational level use the less Hey have made of Kimchi and jangs.

• Journal of Food Hygiene and Safety
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• v.16 no.2
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• pp.133-138
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• 2001

Toxicological safety on 20 kGy-gamma irradiated Kanjang (soy sauce), Doenjang (soybean paste), Kochujang (hot pepper paste) and Chunghukjang (soy paste) was determined by SOS Chromotest. As the strain of the SOS Chromotest, Escherichia coli PQ37 was used in the condition of presence or absence of an exogenous metabolizing system (S-9 mix). Water extract or organic solvent extract was prepared from samples, concentrated and tested by SOS Chromotest with S-9 mix or not. All irradiated samples were not different from non-irradiated one in the bacterial assay maintaining the below 1.5 of IF(induction factor) values in the adapted dose of 10,000$\mu\textrm{g}$/assay. The results indicated that any mutagenicity was not observed in 20 kGy-irradiated traditional soybean fermented foods.

• Journal of the East Asian Society of Dietary Life
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• v.16 no.1
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• pp.99-106
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• 2006

New application of rice was carried out by coating the rice with the mixture solution of ginseng and chungkukjang water extract The physicochemical characteristics of the coated rice were investigated. Moisture content of uncoated (15.26%) and coated rice$(15.57\sim15.66%)$ was not different significantly. The contents of crude protein, crude fat, and crude ash of the coated rice were higher as much as $4.28\sim11.82%\;8.47\sim47.46%$, and $11.54\sim42.31%$ than those of control, respectively. As total free amino acids in coated rice were increased by augmenting the amount of the extract, total free amino acids according to rate was increased to $3.1\sim7.8$ times. The major amino acids in the coated rice was alanine$(19.56\sim39.88\;mg%)$, leucine$(5.14\sim17.66\;mg%)$, and proline$(9.98\sim16.82\;mg%)$. Of those amino acids, alanine and $\gamma-aminobutyric$ acid in only coated rice were detected to the level of $19.56\sim39.88\;mg%$ and $7.78\sim12.36\;mg%$ respectively. The calcium amount of coated rice was increased to 15% to 20%. As increasing the coating rate, hardness, cohesiveness, chewiness, and brittleness of coated rice were decreased, but springiness was increased. Before cooking, the color of coated rice appeared yellow and after cooking turned to the light yellow. The color intensity was increased feasibly as increasing the coating rate. The sensory characteristic of rice coated manufactured by adding 15% of the extract was best and found to be similar to that of the control.

• The Korean Journal of Food And Nutrition
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• v.24 no.1
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• pp.85-93
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• 2011

Job's tears(Coix lachryma-jobi L.) chungkukjang powder and wheat bran powder were added to American cookies for practical use as healthy compounds. We examined the antioxidant activity and quality characteristics of cookies prepared with different amounts(as ratios of 10%, 20%, 25% to the flour quantity) of Job's tears chungkukjang & wheat bran powder. The antioxidant activity was estimated by DPPH free radical scavenging activity, the total phenolic compounds content and flavonoid content in Job's tears chungkukjang & wheat bran powder and cookies. The quality characteristics of Job's tears chungkukjang & wheat bran powder American cookie were estimated in terms of bulk density, pH of the dough, spread ratio, color, texture profile analysis, proximate composition, and sensory evaluations. While the spread ratio and the total polyphenol contents, flavonoid contents and DPPH free radical scavenging activity of cookies significantly increased, pH, hardness and L value of the cookies decreased with increasing Job's tears chungkukjang & wheat bran powder(p<0.01). The consumer acceptability score for the 10~20% Job's tears chungkukjang & wheat bran powder American cookie ranked significantly(p<0.05) higher than those of the other groups in texture andoverall preference. This suggests that Job's tears chungkukjang and wheat bran powder are good ingredient candidates for increasing consumer acceptability and functionality of cookies.