• Proceedings of the Culinary Society of Korean Academy Conference
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• 2005.07a
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• pp.73-90
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• 2005

Korean adults have dietary habits of eating full three meals a day: breakfast, lunch and dinner evenly. The latest survey showed that people who have dinner most was 61.8%, and who have lunch most was 30.8% and then breakfast most was 7.4%. The Korean Nutrition Association suggests that daily required amount of salt intake is 3,450 mg (8.7 g). But the daily amount of salt intake of Korean people is 15 ${\sim} 20 g which surpasses the required amount. needed with 15 ~20g a day, which is usually formed before the age 6 as a dietary habit. When Koreans eat out, they choose Korean food(80.5%), Chinese food(7.0%), Western food(4.5%), fast food(4.8%), etc.(3.1%). The monthly frequency of the urban adults' eating out indicated 32.6% 'seldom', 41.1% 'less than 5 times monthly', 15.6% '5-10 times', 10.8% 'more than 10 times'. Most of them responded less than 5 times a month for eating out. If we look into dietary habits of the urban adults, the monthly eating out frequency of the respondents, was 73.6% of eating out by less than 5 times a month and was 74.9% of the respondents dine regularly.

• Proceedings of the Culinary Society of Korean Academy Conference
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• 2005.07a
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• pp.55-71
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• 2005

Korean adults have dietary habits of eating full three meals a day: breakfast, lunch and dinner evenly. The latest survey showed that people who have dinner most was 61.8%, and who have lunch most was 30.8% and then breakfast most was 7.4%. The Korean Nutrition Association suggests that daily required amount of salt intake is 3,450 mg (8.7 g). But the daily amount of salt intake of Korean people is 15 ~ 20 g which surpasses the required amount. needed with 15 ~20g a day, which is usually formed before the age 6 as a dietary habit. When Koreans eat out, they choose Korean food(80.5%), Chinese food(7.0%), Western food(4.5%), fast food(4.8%), etc.(3.1%). The monthly frequency of the urban adults' eating out indicated 32.6% 'seldom', 41.1% 'less than 5 times monthly', 15.6% '5-10 times', 10.8% 'more than 10 times'. Most of them responded less than 5 times a month for eating out. If we look into dietary habits of the urban adults, the monthly eating out frequency of the respondents, was 73.6% of eating out by less than 5 times a month and was 74.9% of the respondents dine regularly.

• Korean Journal of Community Nutrition
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• v.8 no.4
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• pp.556-565
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• 2003

Market segmentation helps providers to find better marketing opportunities and allows foodservice managers to develop the right product for each target market. Therefore, this study, taking university faculty and staff as subject, is intended to diagnose the relative value of service quality attribute, on the basis service quality scenario of faculty foodservice; to suggest price for improving customer loyalty in market segments. A questionnaire was developed ar d mailed to 600 Yonsei university faculty and staffs. A total of 385 questionnaires were usable; resulting in a 58.7％ of faculty and a 69.7％ of staff response rate, respectively. Statistical data analysis was completed using the SAS/Win 6.12 for descriptive Analysis, ANOVA, principal factor analysis, cluster analysis, reliability test and discriminant analysis. The results of the study are as below. Eighteen questions were selected for measuring respondents' lifestyle by AIO method and the seven lifestyle factors derived from factor analysis and aggregated distinct 4 clusters. Service quality attributes of the scenario were determined with 'food quality', 'menu variety', 'atmosphere', 'fast service', and 'clean and sanitation'. 'Food quality', 'menu variety', 'atmosphere', 'fast service', and 'clean and sanitation', in decreasing order, were identified as improving customer loyalty. However, most faculty and staffs were satisfied with the present meal price. The result of this study indicates that the relative value of service quality was differed significantly among the various market segments. 'Food quality', 'menu variety', and 'atmosphere' were determined as major service quality attributes. Thus, customer loyalty could be increased by improving food taste and quality, atmosphere, and service delivery. (Korean J Community Nutrition 8(4) : 556 ∼565, 2003)

• Journal of the Korean Home Economics Association
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• v.46 no.10
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• pp.119-132
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• 2008

The aim of this study was to analyse the consumer dissatisfaction, complaint and repurchase intentions in foodservices with a particular focus on college students. For this investigation we analysed the responses of 520 college students interviewed from Daegu Gyeongbuk Province. The SPSS/WIN version 12.0 and AMOS version 6.0 were used to analyse collected data. The results were as follows : 1) Factor analysis identified 5 different consumer dissatisfaction factors: facilities, waiter/waitresses behavior, food quality, service, store operating. The level of food quality dissatisfaction was most high. Consumer complaints came in three forms: public, personally and no action. The level of personal complaint was most high. 2) AMOS analysis found that public complaints had the most influence on repurchase intentions. 3) Dissatisfaction was highest with fast food restaurants, which also received the most public complaints. 4) Dissatisfaction, complaints, and compensation strongly influenced eating-out and spending motivation of college students.

• Korean Journal of Childcare and Education
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• v.6 no.1
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• pp.157-176
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• 2010

The purpose of this study was to estimate the effect of "The unsafe food program" designed for improving children's biased eating habits coming from defenceless exposure to the instant food, fast food and adulterated food with MSG and artificial additives with analyzing the current condition of children's biased eating habits and preference for the unsafe foods. This program was performed for 5 year old children who was attending the kindergarten run by the author every day for two months. "The unsafe food program" consisted of the surveys on the parents' attitude towards food and health and children's eating habits, and of programs that was designed to attract children's attention to their daily food intake and to provide physical fitness, information about differences between wholesome food and junk food, and junk food's bad impacts on human body for children. In order to see the changes of children's body through this program, two physical examinations was preformed: SH pharmaceutical company's hair test to measure the accumulation level of toxic metal in children's hair and children's nutrition level before starting the program, and Ilsan Health Center's 'INBODY' test to analyze children's body composition such as body weight, skeletal muscle mass, body fat mass, BMI, body fat percentage and so on before and after the program. The results from this program follow as below. First, the unsafe foods were excluded from children's diet after parents came to recognize the negative effects of the unsafe foods. Second, children became highly interested in their daily diet through the course of gathering information by themselves and discussions together while testing and analyzing foods, and children demonstrated more self-restraint on fast food and instant food. Third, children's body constitution turned out to be improved by physical fitness in addition to this program. Fourth, children formed a good habit of eating well-balanced diet consisting of vegetables, staple food and fruits through this program designed to improve children's biased eating habits. From the results of this study it was confirmed that "the unsafe food project" had effects on improving children's eating habits.

• Journal of the Korean Society of Food Culture
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• v.15 no.1
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• pp.41-49
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• 2000

The effort to understand customer is essential and customer satisfaction measurement tool is needed in today's intensively competitive environment of restaurants. The objectives of this study were to measure customers' expectation and satisfaction of service quality attributes and to identify relatively important attributes for overall satisfaction in restaurants. The questionnaires were distributed to 232 customers at 78 family-style, pizza and fast food restaurants. Statistical data analysis was completed using SPSS for t-test, ANOVA, factor analysis, Pearson's correlation and regression analysis. The results of this study were as follows: 1) four and six- dimensional structures were established from 25 expectation and satisfaction attributes, respectively. 2) Demographic variables and usage characteristics didn't affect on service quality expectation, but expectations were significantly different according to the types of restaurant. 3) Expectation/satisfaction matrix showed different patterns in 3 types of restaurant. 4) 'Quality of food' and 'atmosphere' were the most relatively important attributes for overall satisfaction in restaurants.

• Korean Journal of Food Science and Technology
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• v.29 no.5
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• pp.1067-1070
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• 1997

Imunoglobulins from bovine plasma proteins were isolated by IMAC which $Cu^{2+}$ was chelated on a chelating sepharose fast flow gel. Most plasma proteins were eluted by 1st (0.01 M $Na_2HPO_4$, 0.5 M NaCl, pH 4.0) and 2nd elution buffers (0.01 M imidazol). According to the reverse phase HPLC analysis, it was found that proteins which were eluted by 1st elution buffer were mainly composed of serum albumin, while most IgG and transferrin were eluted by 2nd elution buffer. When protein fractions obtained by 2nd elution buffer was applied to ultra filtration system (molecular weight cut off: 100 kD), IgG was further purified. These results indicate that IMAC is an excellent tool for isolating imunoglobulins from plasma proteins.

• Journal of the Korean Dietetic Association
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• v.14 no.3
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• pp.259-275
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• 2008

Children are an important target of health promotion activities due to the life long effects. Therefore, the purpose of this study was to evaluate a nutrition education program offered to primary school students by community health centers. Eight hundred and twenty-six children from 4 primary schools in Seoul voluntarily attended the program. Teachers taught the classes with materials that were provided to them. The subjects were asked to fill out a questionnaire before and then after completion of the program. The data were analysed by SPSS. The results showed that there were significant positive differences in the children's nutrition knowledge scores after the program (p<0.001). In terms of dietary attitude, the rate of 'yes' responses, as a desirable answer to many questions, had increased (p<0.001); however, this positive change in scores was not statistically significant. For dietary habit changes, it was shown that the proportion of children regularly eating breakfast five days a week had improved to 3.3%. And the proportion of children eating fast foods and instant foods decreased. There was no change in fruit intake, but vegetable intake increased (p<0.001). However, the children's overall dietary habit scores did not show a significant change. In the evaluation of the program, 52.3% of the subjects answered that was helpful, and they viewed 'fast food' as the most interesting topic, whereas 'nutrition labeling' was the most difficult topic in the program. The program's effectiveness was positive in terms of enhancing the 'nutrition knowledge', 'dietary attitudes', and 'dietary habits' of the children. Therefore, the above results indicate that this type of program, provided by community health centers, was effective for nutrition education.

• Journal of the Korean Dietetic Association
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• v.6 no.2
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• pp.97-107
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• 2000

This study was conducted to investigate the nutritional knowledge and eating behavior of elementary school senior students in Incheon area and to develope education program appropriate for them. Questionnaire was developed and distributed to 551 fifth and sixth grade students of fourteen elementary schools in Incheon area. The data was analyzed using ANOVA. According to the results on nutritional knowledge and attitude, senior students were aware of major sources of some nutrients, but didn't seemed to know about the role of some nutrients. Nevertheless, it was favorable that they took various food from major food groups. But the proportion of students skipping breakfast and taking instant food was high. Their table etiquette was not good at home, but attitude for food hygiene was comparatively good. They recognized Korean traditional food more nutritious than fast food. Even though they understood what was right for eating behavior, they didn't practice it correctly. From these results, it seemed that follow-up study or intervention is necessary to improve nutritional knowledge and eating behavior of the students. Qualified teachers, nutrition specialists, are required in order to develop and apply systematic nutrition education program for correcting inappropriate eating behavior of the students. Furthermore, nutrition education for their parents will be more effective.

• Journal of Microbiology and Biotechnology
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• v.26 no.9
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• pp.1505-1516
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• 2016

The detection of food pathogens is an important aspect of food safety. A range of detection systems and new analytical materials have been developed to achieve fast, sensitive, and accurate monitoring of target pathogens. In this review, we summarize the characteristics of selected nanomaterials and their applications in food, and place focus on the monitoring of biological and chemical contaminants in food. The unique optical and electrical properties of nanomaterials, such as gold nanoparticles, nanorods, quantum dots, carbon nanotubes, graphenes, nanopores, and polydiacetylene nanovesicles, are closely associated with their dimensions, which are comparable in scale to those of targeted biomolecules. Furthermore, their optical and electrical properties are highly dependent on local environments, which make them promising materials for sensor development. The specificity and selectivity of analytical nanomaterials for target contaminants can be achieved by combining them with various biological entities, such as antibodies, oligonucleotides, aptamers, membrane proteins, and biological ligands. Examples of nanomaterial-based analytical systems are presented together with their limitations and associated developmental issues.