• Korean journal of food and cookery science
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• v.31 no.4
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• pp.441-447
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• 2015

This study was conducted to investigate the effects of educating 5th graders in elementary school about Korean traditional fermented soy products. The percentage of correct answers from the educated group increased after nutrition education compared to the non-educated group (p<0.001). The perceptions and attitudes regarding Korean traditional fermented soy products increased significantly after nutrition education (p<0.05). Analysis of the preference for Korean traditional fermented soy products based on participation in nutrition education showed that both groups were not significantly different in all categories including soybean paste, soy sauce, and red pepper paste. The investigation on differences in intake frequency of Korean traditional fermented soy products showed that both groups did not display statistically significant differences in all categories including soybean paste, soy sauce, and red pepper paste. These results confirmed that the nutrition education activity program had positive effects in correcting 5th graders' knowledge, perceptions and attitudes regarding Korean traditional fermented soy products. However, it did not significantly affect their preferences and intake frequency. This indicates that short-term education cannot effect changes in preference or actual behaviors. Therefore, continuous nutrition education activities are required.

• Journal of the East Asian Society of Dietary Life
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• v.21 no.3
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• pp.375-384
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• 2011

The effects of mixed beans on quality characteristics of traditional soybean paste (Doenjang) were investigated. The proximate composition of the soybean paste (Doenjang) met traditional food standard requirements. The range in salinity was 12.30~13.20%, and the salinity decreased with an increase in the amount of mixed beans. A significant difference in pH values occurred in all samples(p<0.05). The Hunter's 'L ($45.06{\pm}0.41$)' and 'b ($13.89{\pm}0.73$)' values of the TDM2 samples were higher than those of other samples. The highest amounts of malic acid of the organic acids are shown. The order of the amino acid content was aspartic acid > leucine > lysine, and that of free amino acid contents were proline > glutamic acid > arginine. The order of mineral content in the soybean pastes was Na > K > Ca > Mg, but levels of Co, Cu, and Zn were not detected. The traditional soybean paste (Doenjang) had an effective DPPH radical scavenging activity and higher phenolic content compared to those of the control sample. Overall acceptability score of the TDM2 (soybean 1 : mixed beans 1) was higher than that of the others. More research is needed to enhance the quality and functionality of traditional soybean paste.

• Journal of the East Asian Society of Dietary Life
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• v.26 no.4
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• pp.334-345
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• 2016

This study conducted surveys on perception and utilization of Korean soybean paste targeting 493 women from their 20s to 60s residing in Daegu. Most subjects married (75.3%), were part of a nuclear family (84.8%), had more than a high school diploma (95.8%), had a career (47.9%), lived in an apartment (68.4%), had a total household income of 5 million won or more (38.1%), and had monthly food expenses more than 0.5 million won and less than 1 million won (42.2%). Regarding perception, 'rich nutrition' was the most commonly held perception in subjects in their 60s (4.4), followed by 'good taste' in subjects in their 40s (4.3). Regarding reasons for consumption 'healthy' was highest in subjects in their 60s (47.3%) and 40s (45.6%) and 'delicious' in subjects in their 20s (56.1%). Regarding how to make it, subjects in their 60s responded 'know for sure' (57.1%), while only 2% of 20s responded the same. Subjects in their 50s and 60s had a higher ratio of answering 'know' while 20s and 30s 'don't know', For preparation methods, subjects in their 20s (53.1%) and 30s (41.4%) answered 'buy at the market', subjects in their 40s (68.9%) 'get from family or relatives' and subjects in their 60s (47.3%) 'make by one's own'. For preservation method, subjects in their 20s and 30s answered 'preserve in refrigerator', the 60s tend to answer 'preserve in jangdokdae'. Buying at the market was most common in subjects in their 20s (36.1%) and 30s (28.5%) and the reason was 'convenient' (39.6%). The place of purchase was 'in large supermarket or department store' (78.5%). For the future consumption pattern, 'increase in consumption of commercialized product (44.0%)', subjects in their 60s answered 'keep making at home' while subjects in their 30s and 40s answered 'keep making at home or buying product half and half'. According to the above study results, women living in Daegu region were aware of excellence of traditional soybean paste. However, due to changes in residential circumstance and lack of knowledge about the recipe, they did not make. They receive soybean paste t from family, relatives or bought in the market, which indicates the continuous decrease in home-made soybean paste. Therefore, due to the expanding social participation of women, the product market is expected to increase. I think it is important to develop traditional commercial soybean paste in the traditional way to improve the traditional flavors.

• Journal of Korean Society of Rural Planning
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• v.23 no.3
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• pp.61-72
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• 2017

The purpose of this paper is to estimate consumer's satisfaction by purchasing farmer's processed food. So, this paper surveyed consumers which have purchased Korean traditional soybean paste products, by reason of limiting research objects among lots of farmer's processed food. A survey of 220 consumers was carried out on September and October 2016. For this matters, this paper used multiple linear regression model(included LOG-LIN model) and, set up 1 dependent and 11 independent variables. As the analysis results, we could find out that consumer's satisfaction was affected by 6 variables(price, taste, ease of cooking, confidence of product information, social awareness and perceived 6th industrialization). Among these variables, the strongest variable was "social awareness", and the second was "perceived 6th industrialization". This paper also estimated the rate of change that a dependent variable was affected by independent variables. As the results, this paper found out that "perceived 6th industrialization" had the highest rate of change(5.8%) and the second was "social awareness"(5.6%). This paper proposed 7 implications of Korean traditional soybean paste. Those were the proper price policy and quality value's promotion, quality Improvement and confidence enhancement, development of products for consumer's convenience, enhancement of social awareness, enhancement of politic management about 6th industrialization and accessibility of purchasing information.

• Journal of Nutrition and Health
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• v.29 no.7
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• pp.821-829
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• 1996

Gastric cancer was inducedd by N-nethyl-N'-nitro-N-nitrosoguanidine(MNNG) in Fisher 344 male rats. Freeze dried typical Koran feeds, aged kimchi, soybean paste and maejoo, and partially scorched barbecued bulgokee were fed to the rat in the diet, which were composing 10% of the total diet. Experimental desing was as follows ; (1) group C : Control, (2) group M : MNNG with control diet, (3) group MK : MNNG with 10% of kimchi, (4) group MS : MNNG with 10% of soybean paste and maejoo, (5) group MB : MNNG with 10% of barbecued bulagokee, (6) group MKSB ; MNNG with 10% of the mixture of kimchi, soybean paste and maejoo, and barbecued bulgokee. Each group was fed with isocaloric diet for 26 weeks. Comparing to control, the growth rate of the experimental group was decreased after administration of MNNG and experimental diet. The mortality rate of group MB was increased by 17% than the control group along with a significant decrease of body weight. The protein efficiency ratio and the food efficiency ratio of group MB were lower than the control. The incidence of gastric cancer in rats fed kimchi and barbecued bulgokee were 73% and 75%, respectively, while that of group M which fed MNNG remained only 56%. On the contrary, soybean paste and maejoo showed an inhibitory effect on the burden of gastric tumor. However, the combination of kimchi, soybean paste and maejoo, and barbecued bulogokee showed a synergistic effect of increasing tumorigenesis in rats. Pathological observations of the rat stomach represent that squamous cell type tumors occupied in most frequencies.

• Journal of the East Asian Society of Dietary Life
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• v.21 no.4
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• pp.545-552
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• 2011

Fernbraken is a popular and well-known wild grass, but the physiochemical properties of Korean Traditional pickling (Jangachi) during aging have been little reported. Therefore, this study was carried out to investigate the physiochemical properties of Fernbraken Jangachi treated with a soybean sauce mixture for 6 weeks (1st pretreatment) as well as fermented with soybean paste, red hot pepper paste and soybean sauce for 7 weeks. Total polyphenol contents, acidity, salinity, sweetness (Brix), and ${\alpha}$-tocopherol of Fernbraken Jangachi all increased with aging period. On the other hand, pH and total acidity of Fernbraken Jangachi did not change much. Among the three kinds of Jangachies, Jangachi fermented with soybean sauce showed 2 fold higher salinity and total acidity levels compared to the others. Therefore, the physiochemical properties of Fernbraken Jangachi were dependent on the pickling properties, such as soybean paste, hot pepper paste or soybean sauce, and these properties maintained a certain level after 5~6 weeks of aging. Further, proper aging period for Fernbraken Jangachi was suggested as 10 weeks.

• Journal of the Korean Society of Food Science and Nutrition
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• v.21 no.4
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• pp.449-453
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• 1992

We investigated main effective taste components and optimization of taste component composition in traditional Korean soybean paste. In optimization of taste components the original data with 19 kinds of taste components which is consisted of bitter taste transformed with square root could explain the taste up to 78% (contributing proportion of leucine was 14.7%, isoleucine 12.7%, methionine 5.0%, higtidine 4.7% and arginine 1.1%), palatable taste (cysteine 8.4%, aspartic acid 2.0% and glutamic acid 0.7%), sweet taste (threonine 6.3%, serine 5.6%, sucrose 4.7%, glycine 1.6%, lysine 1.2％, fructose 0.6%, alanine 0.4% and glucose 0.3%), sour taste (oxalic acid 3.9% and succinic-fumaric-citric acid 3.6%) and saline taste (ash 0. 3%). In order to optimize the taste of traditional soybean paste, the constitution of taste components was analysed by multiple regression between the original data transformed with square root sensory scores of the soybean paste. This way explained the sensory evaluation best score.

• Food Science and Biotechnology
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• v.17 no.1
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• pp.208-211
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• 2008

Previously, it has been reported that Aspergillus oryzae can efficiently degrade unpleasant odor components such as butyric acid and 3-methyl butanoic acid from meju, a major ingredient in both Korean soybean paste (doenjang) and soy sauce. In this study, the optimal manufacturing conditions for the production of superior quality Korean soybean paste and soy sauce were determined. Specifically, A. oryzae AJ 100 was utilized to improve the flavor of these products. Mixtures of Korean soybean paste and A. oryzae AJ 100 culture (2 : 1), and of Korean soy sauce and A. oryzae AJ 100 culture (5 : 1), were incubated for 2 weeks at $30^{\circ}C$, and showed improved flavor. Butyric acid and 3-methyl butanoic acid were clearly degraded under these culture conditions.

• Applied Biological Chemistry
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• v.35 no.4
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• pp.248-253
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• 1992

Volatile flavor components of soybean pastes, manufactured with traditional Meju and improved Meju, were extrated by simultaneous steam distillation-extraction apparatus and concentrated at atmosphere press. The concentrates were investigated GC-sniff evaluation by preparative gas chromatograph, and then analyzed and identified by GC/MS and Kovats retention index. Thirty nine components, including 11 alcohols, 4 aldehydes, 2 pyrazines, 4 acids, 3 fuans, 3 phenols, 3 esters, 3 hydrocarbons, 1 ketone, 5 miscellous ones were confirmed in soybean paste manufactured with traditional Meju. Twenty one components, including 4 alcohols, 2 aldehydes, 2 pyrazines, 2 acids, 1 fuan, 2 esters, 1 hydrocarbon, 2 ketones, 4 miscellous ones were confirmed in soybean paste manufactured with improved Meju. Ten components such as 3-methyl-1-butanol, 4-methyl-3-heptanol, trimethyl-pyrazine, 1-octen-3-ol, 2-furancarboxaldehyde, tetramethyl-pyrazine, benzaldehyde, 3-methyl-butanoic acid, naphthalene, 2-ethyl-3-methyl-oxetane were identified together in soybean pastes manufactured with traditional Meju and improved Meju.

• Nutrition Research and Practice
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• v.2 no.4
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• pp.275-282
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• 2008

In this study, the soy food intake behaviors including perception and intake frequency of soybean foods by sociodemographic variables were analyzed in housewives. The perception of housewives for soy foods showed that soybean paste, soybean curd, and Dambuk were high in the descending order for nutritional quality and health promotion effect, and soybean paste received the highest score in taste and flavor. Soybean sprouts received the highest evaluation score in the economic aspect. In the aspect of safe food, soybean paste received the highest evaluation score, as mush as a traditional food. The analysis of perception by sociodemographic variables showed that soybean curd, Dambuk, and soybean sprouts had higher perceptions as education level increased, and soy milk had higher perceptions in subjects with younger age and with employment. In the intake frequency, more than 50% of the subjects had soybean curd, soybean sprouts, and soybean paste more than once a week. The analysis for correlation between the intake frequency of soy foods and the degree of perception showed that taste and flavor had high correlation with the intake frequency of soy foods except soybean sprouts. The intake frequency of soybean paste, Dambuk, and soy milk had positive correlations to familiarity and that of soy milk had positive correlations to nutrition and health perception, and those of soybeam paste, soybean sprouts, and soy milk had positive correlations to safe food perception. From the above results, housewives in Korea had very high perceptions to nutritional quality and health promotion effect of soy foods and the degree of perception and accompanied intake frequency had significant differences by age, education level, and economic level among sociodemographic variables.