• Journal of the Korean Society of Food Science and Nutrition
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• v.42 no.7
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• pp.1148-1156
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• 2013

Studies have shown that the preference and average consumption of kimchi among youths have been decreasing partly due to the westernization of the diet. In this study, we examined kimchi consumption status and the annual utilization of 29 kimchi menus registered in the National Education Information System (NEIS) among the students, and then developed seven kimchi menus based on the preference tests and plate waste analysis. Our findings showed that average kimchi consumption by second and fifth graders during lunch time was 19.3% and 17.3%, respectively, of the recommendation (40 g per meal) in the 2010 KDRI. Incidentally, more than 75% of elementary school dieticians answered that ten kimchi menus (31%) registered in the NEIS were never chosen by them in the previous year. The least adopted types of kimchi menu included cooked rice, porridge, stew, pancake, deep-fry and grill. The newly developed kimchi menus included kimchi sauce tofu deopbap, kimchi bacon rice ball, kimchi chicken potato stew, kimchi vegetable fried noodles, kimchi meatballs, kimchi cheese croquette and kimchi potato salad. All these kimchi food items contained 10~20 g of kimchi per serving, and the standardized recipes and nutrient analysis were provided. Kimchi cheese croquette was most liked by fourth graders followed by kimchi sauce tofu deopbap, kimchi meatball and kimchi chicken potato stew in that order. These four menus were again evaluated among second and fifth graders. The kimchi meatballs were most preferred among these groups of students with no leftover but kimchi sauce tofu deopbap was least favorable, producing 17.1% of plate waste. Finally, kimchi cheese croquette and kimchi potato salad were given the highest and lowest scores, respectively, by 87 school dieticians. The findings of this study suggest that efforts on the development of kimchi menu for school food services may help to promote a preference and consumption of kimchi among elementary school students.

• Journal of Food Hygiene and Safety
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• v.35 no.2
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• pp.146-151
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• 2020

This study investigated microbiological safety of employees' hands, dining tables, and indoor air in cooking areas and lunchrooms in child care centers. Microbiological tests were performed according to the Korea Food Code. Total numbers of aerobic bacteria and coliform bacteria were measured as 5.8±1.9 log CFU/hand and 4.0±2.4 log CFU/hand on employees' hands, and 4.3±3.0 log CFU/100 ㎠ and 2.6±3.3 log CFU/100 ㎠ on dining tables. Bacillus cereus were detected in two cases each of employees' hands and dining tables, respectively. The analysis of microbiological contamination of indoor air in chid care centers showed that the total numbers of aerobic bacteria and coliform bacterial were 28±7.2 CFU/plate and 3.1±2.9 CFU/plate, respectively. Bacillus cereus and Staphylococcus aureus were counted as 1.7±0.2 CFU/plate and 1.6±0.5 CFU/plate from the indoor air in child cate centers. These results indicate that indoor-air in child care centers is considered more safe compared to previous reports. In conclusion, it is necessary to carry out hygienic management using alcohol-based disinfectants before meals to remove microorganism contamination on dining tables and hands. In order to reduce microbial contamination in indoor air, it is also deemed necessary to freshen the sanitary caps, masks, and clothing of the catering staff with periodic ventilation of indoor air.

• Korean journal of food and cookery science
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• v.3 no.2
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• pp.87-99
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• 1987

The serving temperature control practices were assessed in 20 general hospital's dietetics utilizing centralized or decentralized tray assembly systems. The results of the study were summarized as follows : 1) All of the surveyed hospitals were utilizing conventional foodservice system. The number of dietary employees per bed was very low when comparing with that in America. Working hours of employees per week were approximately two times greater than those in America. 2) When comparing two tray assembly systems, dietary labor hours and costs in centralized system were less than those in decentralized system. 3) When comparing serving temperature practices between two tray assembly systems, the temperatures of meals utilizing centralized tray service were significantly lower than those in decentralized system, and only the steamed rice served in decentralized system was within the acceptable temperature range. 4) There was no significant difference in sensory acceptance scores marked by patients served by two different types of tray assembly systems. The serving temperature was significantly correlated to the patient's overall acceptability.

• Food Science of Animal Resources
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• v.26 no.4
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• pp.532-539
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• 2006

This study was conducted to evaluate the inhibitory effects of exopolysaccharide(EPS) produced by Streptococcus thermophilus BODY1 on rotavirus(RV). EPS was isolated from a commercial lactic acid bacteria, Str. thermophilus BODY1. The results obtained were as follows : At 0.1% of EPS, inhibitory effects of EPS on the MA-104 cell using MTT assay were, $Wa\;51.58{\pm}8.08%,\;KU \;63.09{\pm}7.58%,\;S2\;51.23{\pm}5.43%,\;YO\; 51.45{\pm}5.67%,\;K-21\;52.84{\pm}5.49%,\;NCDV\;57.50{\pm}10.85%,\;UK\;51.64{\pm}4.74%,\;KK3\;54.53{\pm}8.44%,\;JBR\;58.67{\pm}7.51%,\;S97\;50.63{\pm}5.17%,\;OSU\;55.48{\pm}5.75%,\;and\;RRV\;54.36{\pm}8.72%$, respectively. At 0.1/128%, the effects were $Wa\;5.5{\pm}6.45%,\;KU\;10.33{\pm}8.39%,\;S2\;0.98{\pm}8.39%,\;YO\;4.25{\pm}2.86%,\;K-21\;4.25{\pm}6.60%,\;NCDV\;4.01{\pm}4.12%,\;UK\;6.55{\pm}7.09%,\;KK3\;5.19{\pm}4.86%,\;JBR\;11.11{\pm}8.11%,\;S97\;6.75{\pm}6.95%,\;OSU\;10.14{\pm}8.54%,\;and\;RRV\;3.66{\pm}8.57%$, respectively. These results indicate that EPS have inhibitory effects on various serotype and sources of RV from different animals.

• Culinary science and hospitality research
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• v.16 no.3
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• pp.268-277
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• 2010

Gochujang and red pepper powder are the representative condiments in Korea. This study examines gochujang sauces for tteokbokgi by hot taste degree(4 levels) and then evaluated the quality and sensory characteristics of gochujang sauces to provide the basic information for industrialization of gochujang sauce. Moisture content of gochujang sauce 1 was the highest (53.90%). Moisture content became decreased against hot taste. pH range of gochujang sauce was 5.50~5.84. pH values of sauces increased in accordance with hot taste. In the Brix contents, sauce 3 was the highest(46.73%), but the sauce 1 was a little low. Viscosity of sauce 4 was 237.93 cp and others became decreased in accordance with hot taste. In the lightness(L value), sauce 2 was the highest(24.89). Capsaicin content of sauce 4 was 27.00 mg/100 g while sauce 1 was 22.97 mg/100 g. In sensory evaluation, color of sauce 4 was darkest. In hot taste, sauce 1 was evaluated as less hot while sauce 4 as most hot. Overall acceptability score range of sauce 2, 3, 4 was 4.95~5.50 which was higher than sauce 1. The result of a research conducted to undergraduate students showed that they preferred hot taste gochujang sauce. Consequently, customers should be more satisfied with sauce products they chose when provided with those by hot taste degree. In the future, more studies are required about the degree of hot taste for the successful industrialization and globalization of hot pepper and gochujang.

• Journal of the Korean Society of Food Science and Nutrition
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• v.43 no.6
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• pp.943-954
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• 2014

The purpose of this study was to gather basic data and measure job satisfaction and job engagement of dietitians and nutrition teachers in Chungbuk area. This study was conducted on 20 August, 2010. Out of 336 questionnaires, 266 were completed and made available for the purpose of statistical evaluation. As the main results, job satisfaction was classified into eight categories: task, wage, policies related to tasks, professional growth, promotion, relationships with colleagues, working environment, and supervision. In the case of wage, promotion, and policies related to tasks, the average scores of job satisfaction were around 2 points out of 5. Dietitians' job satisfaction levels according to employment type and school type significantly differed. In terms of job involvement and organizational commitment, average scores were 3.53 points and 3.12 points respectively. The survey showed significantly different results for job involvement and organizational commitment, depending on employment type, school type, and status as chef in charge or trainee. Dietitians working in elementary schools, as chef in charge, or with permanent employment showed higher job involvement and organizational commitment. Furthermore, there was a significantly positive correlation between factors such as task, wage, promotion, relationships with colleagues, supervision, work environment, policies related to tasks, professional growth, and job satisfaction.

• Journal of the Korean Society of Food Science and Nutrition
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• v.42 no.6
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• pp.991-995
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• 2013

This study was conducted to develop an edible culture media with various types of cereals and soybeans for the pre-cultivation of lactic acid bacteria (LAB). To manufacture the edible culture media, LAB enrichment media were prepared using cereals such as brown rice (including germinated brown rice, glutinous brown rice, and germinated glutinous brown rice), yellow soybeans (including yellow soybeans, hulled yellow soybeans, germinated yellow soybeans, hulled and germinated yellow soybeans), and black soybeans (black soybeans, hulled black soybeans, germinated black soybeans, hulled and germinated black soybeans). Seven species of LAB were used in the experiment: Lactobacillus (Lb.) farciminis, Lb. homohiochii, Lb. pentosus, Lb. plantarum, Leuconostoc (Leu.) paramesenteroides, Leu. citreum, and Leu. lactis. For edible culture media from cereals, the average viable cell count of the seven starter cultures was 7.6~8.0 log CFU/mL, while that of the MRS culture medium, a synthetic medium, was 9.2 log CFU/mL; thus proliferation was lower by about 1~2 log CFU/mL in starter cultures from cereals compared to the synthetic medium. In the case of the edible culture media from soybeans, most bacteria showed higher proliferation in the hulled and germinated soybean media. In particular, Lb. plantarum showed the highest cell count at 10.08 log CFU/mL. In the case of edible culture media from black soybeans, the proliferation rate was higher in the hulled and germinated black soybean medium. Lb. homohiochii showed the highest proliferation in the hulled and germinated black soybean medium at 9.90 log CFU/mL. All results show that edible culture media using cereals and soybeans are generally good for LAB. Especially, hulled and germinated black soybeans are optimal for the pre-cultivation of LAB medium.

• Journal of the Korean Society of Food Science and Nutrition
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• v.42 no.6
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• pp.983-990
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• 2013

The purpose of this study was to analyze the characteristics of menu items offered for school meals in the Daegu and Gyeongbuk area. A total of 538 menu items were collected from six schools (two elementary schools, two middle schools, and two high schools). There was a significant difference in food costs according to menu groups (p<0.001), with the highest food costs for meat and fish dishes (881.66 won) and the lowest cost for kimchi (114.50 won). The proportion of menu items using processed foods and with low operational efficiency were significantly higher in middle schools (p<0.01). In addition, menu items containing animal products were significantly higher in the non-traditional menu items in middle schools (p<0.001). Traditional menu items were less frequently cooked with oil (p<0.001) and processed foods (p<0.001), and their operational efficiency was higher (p<0.001). In conclusion, we found that traditional menu items in school meals were being offered with healthier ingredients and cooking methods, as well as a more efficient foodservice management, than non-traditional menu items.

• Journal of the Korean Society of Food Science and Nutrition
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• v.31 no.6
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• pp.1155-1162
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• 2002

Food waste in school foodservices is an important factor in managing expense or evaluating the acceptance of served meals and a serious environmental hazard factor in all countries. In this study, the perception and attitude towards food waste reduction and the recognition of environmental pollution of students from elementary school foodservices in Busan, Korea were investigated. The questionnaire was responded by 519 students (boy: 255, girl: 264) in the third and sixth grades. School lunch programs were proved to contribute to the improvement of students' food intake habits. The perception and attitude towards food waste reduction of the third grade students (3.61/3.73) were significantly higher than those of the sixth grade students (3.46/3.59) (P<0.01). Food waste education made a significant impact on the perception and attitude on food waste (p<0.01). When dislike food was supplied the students having the higher perception and attitude towards food waste reduction ate it more than those having the lower perception and attitude. The major reason for plate waste was shown to be influenced by the taste and amount of foods supplied in school lunch programs. Most of students recognized that food waste pollution (4.22) was one of the severest problems among the environmental pollutions, followed by air (4.13), tap water (4.09) soil (3.78), noise (3.55) pollution. The students separated the garbage in the house (72.6%) better than in school and the outside (55.2%). The perception of food waste was positively correlated with the attitude toward reduction of food waste and the recognition of environmental pollution (p<0.01). The attitude toward reduction of food waste was also positively correlated with meal quantity taken (p<0.01).

• Journal of the Korean Society of Food Science and Nutrition
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• v.37 no.11
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• pp.1443-1451
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• 2008

This study was performed to develop menu satisfaction index in Business & Industry (B&I) food service and to survey customer's menu satisfaction using the index. The menu satisfaction index included 16 items with Likert 5 point. Cronbach's alpha to assess the internal reliability of the developed scales was 0.8917, which indicated highly reliable. Construct validity was assessed by principal components analysis and then four factors explaining 65.964% of the total variance were found. Among the 15 items of menu satisfaction, the average scores of all items were above 3.0 out of 5. As a result of analysis on menu satisfaction factors, 'propriety of food temperature' (3.52 out of 5) was the highest consideration followed by 'sufficiency of format' (3.46), 'excellence in food' (3.35) and 'well-being orientation' (3.31). It could be said that customer's perception on the menu quality was very positive. Four factors were correlated with overall menu satisfaction positively. Especially, 'excellence in food', and 'well-being orientation' and 'sufficiency of format' affected significantly on overall menu satisfaction. It concluded that customers were satisfied with portion size, temperature, price but their needs for taste and health/nutrition-related service would be increased. The menu satisfaction developed in this study should be applied to other B & I food service operation by type.