• Journal of the Korean Society of Food Science and Nutrition
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• v.45 no.12
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• pp.1784-1791
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• 2016

Garlic was subjected to eight different cooking methods (raw, boiling, steaming, microwave cooking, deep-frying, oven-roasting, pan-frying, and pan-roasting) utilized for typical Korean cuisine. Garlic was analyzed for antioxidant activities and physicochemical properties to elucidate effects of cooking. Garlic cooked at higher temperatures showed significantly lower lightness and higher yellowness (P<0.001). In particular, deep-frying and pan-frying resulted in lowest lightness and soluble solid content, indicating that non-enzymatic browning reactions were more facilitated. Compared with raw garlic, all cooked garlic tended to have lower thiosulfinates, presumably due to decomposition into polysulfides and/or leaching into cooking water and oil. Microwave cooking retained organic acids, total reducing capacity, and flavonoids, which can be attributed to low microwave intensity and shorter cooking time under which heat-labile bioactive components might have undergone less decomposition. Cooking significantly increased metal-chelating activity (P<0.001). In addition, oven-roasting and pan-roasting enhanced total reducing capacity and flavonoid content, indicating that thermal treatments increased the extractability of bioactive components from garlic. However, boiling, deep-frying, and pan-frying, in which garlic is in contact directly with a hot cooking medium, reduced antioxidant activities. Deep-frying resulted in largest reduction in DPPH radical scavenging activity of garlic, which correlated well with reduction of total reducing capacity and flavonoid content. The results show that the antioxidant activity of garlic could be affected by cooking method, particularly heat intensity and/or direct contact of the cooking medium.

• 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.

• Journal of Radiation Industry
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• v.5 no.2
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• pp.165-168
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• 2011

The antioxidant activity was analyzed in gamma-irradiated cooking juices. Because the activities of antioxidants have been attributed to various mechanisms, different assay methods including 1,1-diphenyl-2-picryl-hydrazyl (DPPH) radical scavenging activity and ferric reducing antioxidant power (FRAP), have been conducted and compared. All of these antioxidant assay showed that the antioxidant activity of cooking juice was increased by gamma-irradiation. To investigate this increase of antioxidative activity, the protein was extracted from cooking juices and its antioxidant activity was measured. From the results, it was thought that the modification of protein in cooking juiced by irradiation caused the increase of antioxidant activity of cooking juice. Therefore, gamma irradiation could be an promising method for a sterilization of cooking juice with increased antioxidant activity.

• Journal of Korea Game Society
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• v.21 no.1
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• pp.67-80
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• 2021

The purpose of this study were to develop VR-based cooking serious game(VR-Cook) for students with intellectual disabilities and to validate effectiveness. The VR-Cook was developed using the ASSURE model. Twenty students with intellectual disabilities were participated to verify effectiveness. Ten students were assigned to the experimental group and the others to the control group. The control group received traditional interventions, and the experimental group participated in the intervention combining traditional intervention with VR-Cook. Evaluations were made at three times, and evaluation data were analyzed with repeated two-way ANOVA. The experimental group has improved more than control group in cooking activities and class attitudes.

• Korean Journal of Child Studies
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• v.27 no.2
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• pp.39-53
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• 2006

This study investigated the effects of family related cooking programs on young children's basic science concepts and mathematics abilities. Subjects were 24 five-year-old children, 12 each for the experimental and the control group. Examinations of basic science concepts and mathematics abilities were applied to determine the homogeneity of the two groups. The 23 cooking activities, 12 for kindergarten and 11 for each child's home, were applied to the experimental group for six-week periods. The results of this study were that the family related cooking programs were effective in the formation of children's basic science concepts and children's mathematics abilities.

• Journal of the Korean Society of Food Science and Nutrition
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• v.38 no.2
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• pp.188-194
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• 2009

Antioxidant compounds and activities of raw and cooked (blanching, pan-frying, soy sauce pickle, Kochugang pickle) domestic garlic stems were investigated. The contents of chlorophyll, carotenoid, vitamin C, phenolic compounds and allicin in raw and cooked garlic stems were measured. Various cooking process increased significantly chlorophyll and $\beta$-carotene contents of garlic stem, but decreased vitamin C, phenolic compounds and allicin contents (p<0.05). Antioxidant activities of methanol extracts from raw and cooked garlic stem such as electronic donating ability (EDA), superoxide dismutase (SOD)-like activity and nitrite scavenging ability (NSA) were compared. The antioxidant activities were found to have lowered in the order of raw> pan-frying> blanching> garlic stem soy sauce pickle> garlic stem Kochujang pickle. Antioxidant activities of cooked garlic stems were more than 65% of cooked garlic bulbs.

• Child Health Nursing Research
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• v.8 no.1
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• pp.55-66
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• 2002

It is an important task to give adequate nutritions to infants and to wean properly for rapid growth. This study was conducted to survey on doing the weaning activities of the first-time mother. This study was to provide basic data of health teaching and nursing intervention for the promotion of ideal weaning activities. Survey was done from January to February in 2001. Total 444 mothers who have first-time baby under twelve month old were interviewed in five community health center around contry (Seoul, Choung-ju, Asan, Cheon-an, Jeju). The results are summarized as follows; Starting time of weaning was common in four month old(40.4%). Most common daily weaning times by age showed once(under 3 months), twice(4 to 7 months), three times(8 to 12 months). The younger, the more commercial weaning products(p<0.01). Education level showed relatively positive relation with home-made weaning food(p<0.05). Items showed low scores in 4 to 7 months group were starting new food item, waiting at least one week interval to new food, feeding by milk bottle, allowing grasping spoon, consulting pediatrician for problems after weaning, starting from morning, regular schedule. Items showed low scores in 8 to 12 months group were feeding whole egg rather than yolk only up to 12 months, keeping weaning interval were increased, feeding by milk bottle, trying various cooking method, not giving commerical cooking and instant food and unproper raw milk feeding. In weaning activities by general factors, mother age, health status, marriage duration, monthly income were statistically significant (p<0.05). To improve good weening activities, targetting on low maternal age and poor health status, and low income group, developing teaching materials and training program for items showed low scores and proper weaning time, type of easy home-made food and easy cooking method should be provided. Further study on effect of nursing intervention to improve weaning activities are needed.

• Preventive Nutrition and Food Science
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• v.17 no.4
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• pp.286-292
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• 2012

We investigated the effect of various cooking methods (boiling, steaming, stir-frying, and roasting) and three cooking times (5, 10, and 15 min) on the antioxidant properties of red pepper. Raw and cooked peppers were measured for proximate composition, ascorbic acid (AsA) content, total carotenoid content (TCC), total polyphenol content (TP), and 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) radical scavenging activities. Results showed that the proximate composition, AsA content, TCC, TP, and antioxidant activities were significantly (p<0.05) affected by the cooking procedure; the loss rate varied among individual compounds. Boiling and steaming significantly reduced AsA content (24.3~66.5%), TP (13.9~54.9%), and antioxidant activity (21.7~60.5%) in red pepper, while stir-frying and roasting slightly reduced AsA content (2.7~25.9%), TP (1.8~4.9%), and antioxidant activity (4.9~17.9%). The highest loss was observed after boiling, followed by steaming, roasting, and stir-frying. Stir-frying and roasting better preserved AsA content, TCC, TP, and antioxidant activity. In conclusion, dry-heat cooking methods such as stir-frying and roasting may be preferred to retain the nutrient compositions and antioxidant properties of red pepper.

• Korean Journal of Community Nutrition
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• v.18 no.3
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• pp.203-212
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• 2013

This study was conducted to develop a dietary life education textbook and teaching manual for creative activities of elementary school students in middle grade. First, we extracted dietary life related contents from textbooks for third and fourth grade and created systematization of contents involving educational objectives, goals, contents and activities. The development of textbook and teaching manual were based on systematization of contents. The textbook was composed of five major chapters, which were 'nutrition', 'cooking', 'environment and hygiene', 'food' and 'dietary culture'. Each major chapter having six to seven smaller chapters, adding up to a total of 34 smaller chapters. The textbook was in activity format so that can be readily and directly used in actual classes. The textbook had fun characters and various activities (particularly a lot of cooking activities) to deliver the main theme of each chapter. The teaching manual was composed of background, goal, teaching plan and teaching point. The smaller chapters had learning goal, teaching-learning resources, important points, teaching-learning process and reference material. In evaluation after operating the model school, the developed textbooks were suited for students' needs and cognitive level. This textbook can be utilized at creative activities consisting of ten to fifteen students.

• The Journal of the Convergence on Culture Technology
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• v.8 no.1
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• pp.19-29
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• 2022

This study was conducted with the aim of verifying the effects of restaurant video taping and job communication drawing board production activities on cooking job skills of high school students with intellectual disabilities. The study participants consisted of three students with intellectual disabilities enrolled in the high school course of a special school, and the experimental environment consisted of a kitchen in the restaurant and a classroom in the special school. For the research design, the technique of multiple probe design across subjects according to a single subject research was used. The intervention program consisting of independent variables was applied as a linkage procedure in which study participants videotaped the kitchen's environmental facilities, tools, materials, and staff perform cooking job skills and then taped data from the classroom scene on a job communication drawing board. Cooking job skills consisting of dependent variables are defined as the performance of research participants cooking gimbap directly in the kitchen of the restaurant. As a result of the study, it was found that participants effectively acquired, maintained, and generalized cooking job skills through intervention programs.