• Korean Journal of Community Nutrition
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• v.4 no.3
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• pp.366-374
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• 1999

The purpose of this study was to investigate the change in food habits of girl students 1985 and 1998. A similar study had been conducted in 1985 and this study was carried in May, 1998 using the questionnaires. The subjects were 746 female students in middle school, high school and university students living in Jeonbuk region. The average score of food habit was $4.11{\pm}1.63$ out of a possible 10. This averge is lower than the 4.91 score in 1985, especially the score of university students lowered from 4.80 points to $3.52{\pm}1.58$ points. The correlation coefficient between the score of food habit and standard of living, utilizing increase as compared with the 54.9% in 1985. The most preferred side-dish changed from fried food to Kimchi. The preference of snacks was not changed. Eating bread increased at breakfast but eating noodles increased at lunch. University students' lunch basket preparation ratio decreased from 32.6% to 3.3%, so they had more noodles at refectory than lunch basket. The reason for skipping breakfast did not changes, but skipping lunch changed from annoyance due to lunch basket preparation to lack of time and no appetite. Skipping supper was changed from missing time to weight control. Having supper at home decreased from 96.6% to 75.9%. Substitution food on no preparation of lunch basket was changed from bread to noodles. The preference for biscuits and snack did not changes but fewer students preftered bread and fried food. In order to improve the nutritional status of the girl students, they must establish good food habits, especially by eating 3 regular meals per day and balancing their diet they should also be notified that severe weight control is very harmful for health.

• Journal of the Korean Society of Food Culture
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• v.1 no.3
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• pp.295-309
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• 1986

To determine dining out behaviours of fast foods at five different fast food restaurants of Youido apartment compound in Seoul, a survey was conducted of 460 customers ranging in age from 7 to 29 year, from October 1 to 5th, 1986. Findings are summarized follows: The reasons the customers the fast food restaurants by the highest percentage were the following in the order: 'the atmosphere in which fast food is eaten is enjoyable for the companionship', 'convenient to dining', 'the surroundings and dining equipment are pleasant and hygienic', and 'to be able to stay as long as I want'. The majority of the customers visited the fast food restaurants with their friends between 1pm and 5pm. The fast foods purchased by the customers were mostly for snack rather than a full meal. Preference was a major factor in food selection from available meun items. Ice cream, Kentucky fried chicken, rolled rice with laver I rice cake stew, fried Mandoo were ranged high on the list of liked foods, in contrast, lower preference was for noodle soup, small red bean porridge, pinenut porridge, and persimmon punch.

• Korean Journal of Human Ecology
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• v.4 no.1
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• pp.46-61
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• 2001

The purpose of this study is to survey eating habits and food preferences of elementary school students, and to offer basic informations for proper guiding method. The findings of this research were as follows : (1) In regularity of eating habit, boys had more regular terms than girls. In other words, girls more often did without meals or didn't have regular eating habit. (2) Boys were more likely to overeat than girls. On the other hand. girls tended not to eat up all food. (3) The 60% of the children, who were given the questionnaire. answered that they were greedy for delicious foods. It shows that good table manner will have to be taught to children. (4) The 70% of the children answered that they were eating the unbalanced meals. It shows that systematic and continuous guidance for correcting unbalanced meals will be necessary to children. Also, considering that the eating habit of unbalanced meals is more serious in lower grade students, the children will have to learn about balanced meals from lower grade. (5) The research showed that the children were eating out more often than before and that the 90% of the children were eating snacks. So, the table manner when eating out and food selection for snack will have to be taught to children systematically. (6) The children were likely to prefer rice to cereals and to prefer meat to fish. (7) The children tended to like fried food better than any ether food. In addition, they showed higher preference for instant foods like noodles. Therefore, the systematic guidance will be necessary for children not to select acidified fried food.

• Journal of the Korean Dietetic Association
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• v.7 no.4
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• pp.320-330
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• 2001

This study was to obtain information about the dietary habits, the dietary attitudes, nutrition knowledge, and the food consumption of middle school students and to assess relationships between the dietary habits, the dietary attitudes, and nutrition knowledge of middle school students. Data were collected from 390 middle school students in Kimcheon. In the dietary habits, the regularity of breakfast showed the highest point and the snack consumption showed the lowest point. Female students were lower in the regularity of breakfast, and male students were higher in overeating of dinner and night. In the dietary attitudes and the perceived importance of nutrition, male students showed more favorable attitudes and perceived more importance of nutrition. In the nutrition knowledge, the responses to items 'Cola or cider doesn't have calories' and 'An egg contains lots of cholesterol' were the lowest point. Female students had higher knowledge than male students. In the food intake, grains, milk.yogurt.cheese, and fruits were always eaten or frequently eaten. While fast food, spicy and salty food, seaweeds, carbonated drinks, and yellow or green vegetables were eaten in lower frequency than other foods. Male students consumed more meat.ham.egg.fish, fried.stir-fried food, fast food, carbonated drinks, and spicy and salty food than female students. The correlation between dietary attitudes and dietary habits was statistically significant. The correlation between dietary attitudes and the perceived importance of nutrition was statistically significant. But the correlation between dietary attitudes and nutrition knowledge was statistically significant for female students, not significant for male students. Nutrition knowledge was related to the perceived importance of nutrition. It might be suggested that effective nutrition education program might be developed and implemented to ensure the good eating behaviors of middle school students.

• Journal of the Korean Home Economics Association
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• v.28 no.2
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• pp.15-29
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• 1990

A survey was conducted of 1,454 customers to investigate dining out behaviors at fast food restaurants of Youido department compound, Myung-dong and Gang-nam district in Seoul, in April, 1988. The results are summarized as follows; The majority, 85% of customers, were aged 14 to 30, consisting of junior and senior high school children, college students and company employees. The reasons given by customers for patronizing fast food restaurants were the following, from most to least frequent; "convenient to dining," "the adequate place for the companionship", "the surroundings and dining equipment are pleasant and hygienic", "to be able to stay as long as I want". The fast foods purchased by the customers were mostly for a between meal snack or ice cream or drink rather than a full meal. The majority of the customers ate the purchased foods at the fast food restaurnats. However, a limited number of female customers preferred to take the packed fast foods to their homes. Tast Preference was a major factor in food selection from available food items. Ice cream, juice, French fried potatoes, salad, fried chicken, rolled rice with laver, and coke were high on the list of liked foods; in constrast, lower preference was for porridge, fish burger, doughnut, chicken burger and rice cake. Preference by food nationality was highest for Korean food, then Western food, Chinese food, Italian food and Japanse food, in that order. Customers offered suggestions for better fast food service, such as lowering the price, greater variety in the menu, increasing the propotion of vegetables and fruits on the fast food menu adn developing fast foods from traditional Korean foods. The customers, in particular, emphasized a need for the development of Korean traditional beverage of malted drink and persimmon punch, as well as mungbean pan cakes and sweet-spicy rice noodles(docbokki), as fast foods.y rice noodles(docbokki), as fast foods.

• Korean Journal of Community Nutrition
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• v.28 no.3
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• pp.220-234
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• 2023

Objectives: This study aimed to assess the adherence to dietary guidelines among college students in the post-COVID-19 era and examine the changes in their dietary habits as the learning environment transitioned from remote to in-person classes. Methods: We conducted a survey involving 327 college students in Daejeon from March to April 2023. The survey questionnaires included various factors, including age, gender, type of residence, frequency of use of delivery food, convenience food, and eating out. In addition, we investigated the extent of adherence to the dietary guidelines for Koreans and the degree of dietary changes following the post-COVID-19 shift in class format were investigated. For comparative analysis of the level of adherence to dietary guidelines in relation to dietary habit changes, an ANOVA and a post hoc Scheffe test were employed. We also performed a multiple linear regression analysis to identify dietary factors influencing the level of adherence to dietary guidelines. Results: The study revealed a high rate of convenience food consumption and a low rate of homemade food intake among students. There was a marked increase in the consumption of processed foods, convenience foods, dining out, sweet foods, high-fat fried foods, beverages, and alcohol following the transition from online to in-person classes. When examining adherence to Korean dietary guidelines, the highest scored practice was 'Hydration', and the lowest was 'Breakfast habit'. Increased consumption of convenience foods, late-night snacks, and dining out were negatively correlated with adherence levels to dietary guidelines, specifically correlating with 'Healthy weight', 'Hydration', 'Breakfast habit', and the total score of adherence. The adoption of 'regular meals' was positively associated with increased adherence levels to dietary guidelines. Conclusions: The transition from remote to in-person classes post-COVID-19 led to increased intake of convenience foods, dining out, sweet foods, high-fat fried foods, and alcohol. The rise in convenience food and late-night snack consumption negatively influenced several aspects of the dietary guidelines adherence, thereby suggesting the need for strategies to encourage healthy dietary habits among college students.

• Korean Journal of Health Education and Promotion
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• v.13 no.2
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• pp.69-96
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• 1996

This study was conducted to investigate the awareness and practice level of health food intake and use the information for the development of Public Health Policy and Health Education Program in order to help healthy dietary life. The interview was done by trained surveyors on 1, 143 city dwellers who were selected randomly from Oct. 2, to Oct. 21, 1992. The results are summarized as follows: 1) General characteristics of subjects; Among 1, 143 respondents, there were more female(53.8%) than males(46.2%) and the age group of 20-29 account for the hightest portion, 46.7%. As for the education levels, 45.3% of the subjects were college graduates. And 38.9% of the subjects were students. 2) The percentage of subjects who assess themselves ‘Healthy’ was 46.7% and ‘Not Healthy’ was 17.4%. 3) The subjects who have irregular meals(3 times a day) was 48.7%, the rate of females was higher than males. The proportion of unmarried subjects, people with low economic level, high education level, and students was high. 4) As for the amount of 1 meal, 72.4% was ‘moderate’, 16.3% was ‘too much’ amount, which was higher in 19 years old, single, low economic level, elementary school graduate, than other groups. 5) As for the eating speed, 40.2% was fast, which was higher in single(44.3%), in low economic level(50.0%). college graduate(44.9%), student(44.7%) than other groups. 6) As for the level of preference to hot and salty food, 25.7% preferred to have hot and salty food. The difference in the degree of preference to hot and salty food by age and economic level was significant. 7) With regard to the individual food taste, the subjects who prefer to meat and fried food were 12.3%. Which was higher in the group under 19 years old, single, and college graduates. 8) With regard to having a snack, 38.7% have a snack. By characteristics, the subjects who have a snack were higher in female, under 19 years old, single, high economic level, apartment dwellers, college graduate, and student than other groups. 9) As for the coffee intake amount per day, 39.8% of subjects was more than 3 cups daily. 10) With regard to the self-assessment of body weight, the subjects who assess themselves over body weight had late dinner time. 11) As for the correlation among related variables, the age and taking breakfast was positive correlation. And sex and drinking alcohol was positively associated while age had negative correlation.

• Food Science and Preservation
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• v.24 no.6
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• pp.820-826
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• 2017

Soybean is one of the most common food materials for making traditional Korean foods such as soybean paste, soy source and soy snack, and their manufacturing processes include heat treatment of soybean. This study was carried out to investigate the effect of heat treatment on the physicochemical properties of soybean. All samples were heat treated under commercial steamed, puffed or air-fried conditions, and then the protein molecular weight distribution, thermal properties, fluorescence intensity, protein solubility, and water and oil holding ability of the heat treated soybeans were examined. Sodium dodecyl sulfate polyacrylamide gel electrophoresis indicated that heat treatment caused fragmentation of polypeptide chain in soybean, showing the band of low molecular ranging from 17 to 40 kDa. The differential scanning calorimetric analysis showed the decrease of enthalpy values (${\Delta}H$) by heat treatment. Fluorescence spectroscopy indicated that the heat treatment caused lipid oxidation as proved by increasing emission intensity. The protein solubility at pH 3-6, and water holding capacity of heat treated soybeans were the higher than no treatment. These results suggest that the heat treatment resulted in decreased enthalpy values, and increased protein degradation, lipid oxidation and water affinity of soybean. Moreover, the effect of heat treatment on physiochemical properties of soybeans was more significant under air-fried condition.

• Human Ecology Research
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• v.52 no.3
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• pp.267-274
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• 2014

The purpose of this study was to investigate the effects of an after-school cooking program on the eating habits and sociality of children. Thirty five children from the 3rd to the 6th grade of G Elementary School participated in this program comprising 12 periods of cooking activities, from May to August 2013. The content of the after-school cooking program included japchae, topokki, jajangmyeon, oi sobagi, cake, snack wrap, vegetable fried rice, sticky noodle, sushi, pizza, rice muffin, and sandwiches. Before and after learning, the participants' eating habits and sociality were investigated. The study analyzed the mean, standard deviation, and Wilcoxon Matched-Pairs Signed-Ranks Test results for a comparison between the pre- and post-test results. On the basis of the research findings and discussions, the study reached the following conclusions. First, the after-school cooking program was analyzed as being helpful and useful in categorizing the eating habits of children as sanitary dietary life, well-mannered dietary life, and healthy dietary life. Further, more girls than boys fostered effective eating habits. Second, the after-school cooking program was analyzed as being helpful and useful in determining sociality and more girls than boys fostered effective sociality. Third, cooking is an appropriate topic for the after-school program of Korean elementary schools, and the cooking program has expanded in G Elementary School after the abovementioned experiment.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.47
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• pp.124-134
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• 2002

The sweetpotato, Ipomoea batatas L. (Lam.), is one of the important summer upland crops in Korea and has been used as human food, industrial yaw material and vegetable. Sweetpotato has been consumed for human foods such as boiled, roasted, fried or salad etc. It should be developed for higher quality as a snack or health food, primarily through improving the eating and marketing qualities as well as nutritional value. Its quality after cooking or processing is a complex one combining the aroma, taste, texture and fiber content. The other important qualities for consumers are root shape, size, skin color, flesh color, insect and disease resistance, nutritional components and safety from phytoalexins(toxic stress metabolites) etc. Korean people generally prefer to red skin color, round or elliptic shape and dry texture, yellow flesh color of sweetpotato which is high in starch content including vitamins and nutrients. The almost factors of quality components of sweetpotato are genetically controlled by breeder, but postharvest handlings and marketing management for making high quality goods should be done thoroughly according to the quality evaluation criteria of sweetpotato from the moment of harvest until shipping them to the market by farmers and the other users. This paper describes current status and prospects of the quality evaluations and researches in sweetpotato roots in Korea.