• Journal of the Korean Society of Food Science and Nutrition
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• v.45 no.4
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• pp.602-612
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• 2016

The purposes of this study were to explore food-related lifestyle segments for commercialization of ready-to-eat Korean foods, to identify their demographic characteristics, and to evaluate perceptions and preferences related to Korean foods. The subjects consisted of 266 Koreans and 212 non-Koreans in Seoul, Gyeonggi, and Daejeon, Korea including in Grapevine of the US. Koreans' scores for food-related lifestyle of taste seeking and convenience seeking were significantly higher than those of non-Koreans. Through cluster analysis, four segments for Koreans were identified: health-oriented group, diet-oriented group, rationality-oriented group, and price-sensitive group. The clusters for non-Koreans were classified into four segments: taste-oriented group, rationality-oriented group, diet-oriented group, and convenience-oriented group. Significant differences were detected among the four segments in terms of demographic characteristics. There were significant differences in perceptions and preferences related to Korean foods by food-related lifestyle segments of non-Koreans. Japchae, Bibimbap, and Naengmyeon were selected as the most likely to purchase ready-to-eat food items for Korean clusters, whereas Bulgoggi and Bibimbap were selected for non-Korean clusters. This study shows that food companies wanting to promote commercialization of Korean foods should consider characteristics of each segment of food-related lifestyle.

• Food Science of Animal Resources
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• v.34 no.5
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• pp.683-691
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• 2014

The effects of sucrose stearate at various concentrations (0.1%, 0.2%, and 0.3%, w/v) on the physico-chemical characteristics of ready-to-eat (RTE) Samgyetang were investigated during storage at $25^{\circ}C$ for 12 mon. Over the storage duration, the addition of sucrose stearate had no significant effects on the proximate composition of Samgyetang, including meat, broth, and porridge, or the hardness and spreadability of the porridge, although it resulted in significantly higher CIE $L^*$ values for the porridge. The CIE $L^*$ values of Samgyetang porridge with added sucrose stearate increased until 9 mon, while the control decreased until 6 mon, and the values for both changed insignificantly thereafter. The breast meat of Samgyetang treated with sucrose stearate showed higher percentages of polyunsaturated fatty acid after 3 mon and lower percentages of monounsaturated fatty acid after 6 mon compared to the control (p<0.05), while no significant differences were observed with the different sucrose stearate concentrations (p>0.05). The overall sensory acceptability scores were higher at sucrose stearate concentrations of 0.2% or 0.3% after 6 mon and at 0.1% after 9 mon compared to those of the control.

• Journal of the East Asian Society of Dietary Life
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• v.25 no.6
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• pp.963-969
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• 2015

High sodium intake in many countries has become the leading cause of chronic diseases. This situation requires correct dietary behavior to ensure proper sodium intake in the younger population. The purpose of the present study was to assess eating behavior regarding sodium intake and identify its correlation with common dietary attitudes in children. This cross-sectional study was conducted by surveying 588 elementary school children in Korea. Sodium-related dietary behavior and common eating attitudes were examined through questionnaires, and analyses were conducted by comparing the results between boys and girls. The most undesirable sodium-related dietary behavior in subjects was they 'eat kimchi with every meal' followed by the 'tendency to eat hot and spicy food'. Girls had better dietary behavior regarding sodium intake than boys (P<0.05). However, the common eating attitude between boys and girls was not significantly different. For all subjects, sodium-related dietary behavior and eating attitude showed a significant positive correlation (P=0.0032). The present study shows that a common eating attitude is better when the sodium-related dietary behavior is more desirable in children.

• Nutrition Research and Practice
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• v.6 no.6
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• pp.551-558
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• 2012

The purpose of this research was to investigate how university students' nutrition beliefs influence their health behavioral intention. This study used an online survey engine (Qulatrics.com) to collect data from college students. Out of 253 questionnaires collected, 251 questionnaires (99.2%) were used for the statistical analysis. Confirmatory Factor Analysis (CFA) revealed that six dimensions, "Nutrition Confidence," "Susceptibility," "Severity," "Barrier," "Benefit," "Behavioral Intention to Eat Healthy Food," and "Behavioral Intention to do Physical Activity," had construct validity; Cronbach's alpha coefficient and composite reliabilities were tested for item reliability. The results validate that objective nutrition knowledge was a good predictor of college students' nutrition confidence. The results also clearly showed that two direct measures were significant predictors of behavioral intentions as hypothesized. Perceived benefit of eating healthy food and perceived barrier for eat healthy food to had significant effects on Behavioral Intentions and was a valid measurement to use to determine Behavioral Intentions. These findings can enhance the extant literature on the universal applicability of the model and serve as useful references for further investigations of the validity of the model within other health care or foodservice settings and for other health behavioral categories.

• The Korean Journal of Food And Nutrition
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• v.29 no.2
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• pp.218-227
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• 2016

This study was undertaken to examine the knowledge about food culture and intakes of traditional food in Korean and Japanese elementary school students. In 2012 and 2013, a total of 265 students were surveyed, consisting of 73 Korean fifth graders and 192 Japanese sixth graders. The questionnaire comprised of queries on general items, the recognition and sampling of traditional and celebration foods, the knowledge about the partner country's food culture, and the frequency of consuming the partner country's foods. As a result of this study, the frequency of consuming their own country's traditional foods for Korean children (3.1 out of 5.0 points) and Japanese children (3.2 out of 5.0 points) was similar to each other. Japanese children reported to eat Korean foods (2.9 points) more frequently than those of Korean children to eat Japanese foods (2.4 out of 5.0 points) (p<0.001). However, the Korean children reported to have more experience on given typical Japanese foods than Japanese children reported about Korean foods. Further studies are needed for the perception on traditional foods in Korean and Japanese children. The results of this study can be used as a basic data to succeed and develop traditional food cultures.

• Journal of the East Asian Society of Dietary Life
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• v.15 no.2
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• pp.235-245
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• 2005

This study was conducted to investigate the eating out behavior and its factors in restaurant selection by students in Incheon area. Self administered questionnaires were collected from 297 students. Statistical data analysis was completed using a SPSS v. 10.0 program. The results are summarized as follows: The average age, weight, height, BMI and male and female students were $24.31,\;67.96\cal{kg},\;174.93\cal{cm},\;22.17\;;\;20.55,\;51.99\cal{kg},\;165.44\cal{cm},\;19.00$ reflectively. About $54.2\%$ of male students and $38.0\%$ of female students responded to eat out at least once a day. And lunch was most frequent meal for eating out. About $57\%$ of students responded to have eat at restaurants around campus, and $19.5\%$ of students used the university foodservice system. Korean-style food was most favorite dish when they ate out. Major source of restaurants information was recommended action by friends or family. But the use of internet or magazine was negligible. The factor of restaurants choice was in order 'taste', 'price', 'atmosphere' and 'hygienic'.

• Food Science of Animal Resources
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• v.29 no.6
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• pp.673-679
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• 2009

To develop ready-to-eat (RTE) style Korean traditional Galbi-jjim, the optimal conditions for sous-vide cooking and cookchill preparation and the sensory properties of the cooked products were investigated. During heating, the meat core temperatures reached $85^{\circ}C$ within 30 min and 45 min when a water bath and combination oven were used, respectively. Chilling to $3^{\circ}C$ within 45 min was conducted to meet the standards for microbiological safety set by the UK Department of Health and Social Security (DHSS) Guideline. Galbi-jjim that was vacuum-cooked in a water bath was much more tender than that of Galbi-jjim prepared using the cook-chill method, but had no difference in any reheating methods. The average sensory scores of juiciness and the overall acceptance of Galbi-jjim were significantly higher when water bath cooking was used, and there were no differences in reheating methods. In conclusion, the serial methods of sous-vide processing and rapid chilling can be applied to produce RTE traditional Galbi-jjim, and this can be conducted while meeting the standards specified in safety guidelines.

• Nuclear Engineering and Technology
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• v.42 no.4
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• pp.434-441
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• 2010

The activation products of aluminum and argon are key radionuclides for operational and environmental radiological safety during the normal operation of open-tank-in-pool type research reactors using aluminum-clad fuels. Their activities measured in the primary coolant and pool surface water of HANARO have been consistent. We estimated their sources from the measured activities and then compared these values with their production rates obtained by a core calculation. For each aluminum activation product, an equivalent aluminum thickness (EAT) in which its production rate is identical to its release rate into the coolant is determined. For the argon activation calculation, the saturated argon concentration in the water at the temperature of the pool surface is assumed. The EATs are 5680, 266 and 1.2 nm, respectively, for Na-24, Mg-27 and Al-28, which are much larger than the flight lengths of the respective recoil nuclides. These values coincide with the water solubility levels and with the half-lives. The EAT for Na-24 is similar to the average oxide layer thickness (OLT) of fuel cladding as well; hence, the majority of them in the oxide layer may be released to the coolant. However, while the average OLT clearly increases with the fuel burn-up during an operation cycle, its effect on the pool-top radiation is not distinguishable. The source of Ar-41 is in good agreement with the calculated reaction rate of Ar-40 dissolved in the coolant.

• Food Science of Animal Resources
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• v.37 no.6
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• pp.855-864
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• 2017

The objective of this study was to assess the sensory-related characteristics of the broth and porridge of ready-to-eat (RTE) ginseng chicken soup (Samgyetang) with sucrose stearate added at various concentrations (0.1%, 0.2%, and 0.3%) during storage at $25^{\circ}C$ for 12 mon. Scores indicating the lightness and size of fat droplets in the broth increased during storage as the sucrose stearate concentration increased, while the clarity scores decreased until 9 mon and the taste scores decreased throughout the storage period (p<0.05). The porridge lightness increased as the concentration of sucrose stearate increased after 6 mon (p<0.05), while scores indicating the softness and vividness were higher for treated samples with sucrose stearate than for the control group after 3 mon, despite a lack of significant differences among treatment groups (p>0.05). The taste scores were lower for treated porridge samples than for the control group (p<0.05), even though no significant differences were observed among the treatment groups (p>0.05). The addition of sucrose stearate to the RTE Samgyetang broth improved the lightness (CIE $L^*$) value of the broth and various sensory palatability parameters, including the color and fat droplet size of the broth and the softness and vividness of the porridge, despite reductions in broth clarity and taste scores for the broth and porridge during storage.

• Journal of Food Hygiene and Safety
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• v.24 no.2
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• pp.154-161
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• 2009

This survey was conducted to monitor the safety of children snacks circulated in a stationary store or small shop around the elementary school from March to October, 2008, in Gwangju. A total of 309 samples was tested. Of these samples, 254 were confectioneries, 41 were ready-to-eat foods like kimbap, 4 were beverages and 10 were the others like fishery products. 259 were domestic products and 50 were imported. By the origin of imported samples, 17 were from china, 6 from U.S.A., 5 from india and etc. We found out that in acid value, 2 cases of fried snacks(3.9 and 4.4) proved to exceed regulatory guidance(2.0). And among ready-to-eat foods, two kimbap had Staphylococcus aureus, and one had Escherichia coli. which microorganism could cause food poisoning.