Purpose: This study was conducted to find ways to improve foodservice quality and satisfaction of middle school students in school lunch service. Recognition of concerns about school lunch and quality attributes was evaluated by gender. And we tried to investigate quality attributes which could affect degree of foodservice satisfaction by gender. Methods: Two hundred students from each of 6 middle schools (3 schools in urban and 3 schools in rural) in Gyeonggi Province were surveyed using self-developed questionnaires. Total of 1,103 questionnaires (male 556 and female 547) were collected and data were analyzed using descriptive analysis, t-test, cross table and stepwise multiple regression by SPSS 11.0. Results: There were not significant differences in average importance scores (male 4.09, female 4.06) and average performance scores (male 3.36, female 3.30) of quality attributes between middle school boys and girls. But there were significant differences in 7 and 6 of 25 quality attributes in evaluating importance and performance respectively by gender. There was not a significant difference (male 3.13, female 3.24) in degree of foodservice satisfaction by gender. But there were significant differences in the distribution of satisfaction. Stepwise multiple regression analysis showed that degree of satisfaction was influenced by a taste of food, quick complaint handling, providing favorite foods, and food hygiene in male students (F=$51.1^{***}$, adjusted $R^2$=.265). Degree of satisfaction was influenced by a taste of food, providing favorite food, proper meal prices, providing a wide variety of food in female students (F=$91.4^{***}$, adjusted $R^2$=.399). Conclusion: We found out that there were significant differences in quality attributes when evaluating importance and performance and in quality attributes which could affect foodservice satisfaction by gender.
The present study is concerned with nutritional status and palatability of the packed-lunch in elementary school children in Daejeon city. Rice and side dishes in the lunch box were weighed and the contained nutrients were analyzed by the Food Composition Table. The result of survey is as follows; 1) The means of nutritional values of 523 lunch boxes were calorie 562.48 Cal. percentage of the recommended dietary allowances.(79.11%), protein 19.16gr. (88.43%), animal protein 6.03gr. (83.50%), calcium 110.75mg (48.15%), iron 2.20mg. (56.15%), Vitamin A 328.16 I.U.. (49.22%), Vitamin $B_1$ 0.22mg. (59.45%), Vitamin $B_2$ 0.14mg (32.56%), Niacin 3.20mg. (68.08%), Vitamin C 9.79mg. (73.44%). All the nutrients are under the recommended dietary allowances. 2) The correlation between the boys and girls in the intake of protein, calcium, iron, Vitamin A, Vitamin $B_1$, Niacin index revealed statistical significancy at the level of P<0.01. 3) According to the intake of calorie, the ratio of carbohydrates, protein and fat is 78 : 14 : 8, which is excessive meal of carbohydrate. 4) Among the total intake of the protein consists of 30.20% for the boys and 32.90% for the girls. 5) The most favorite food for boys and girls from the packed-lunch is kimchi, egg, ham, sausage, cuttle-fish, laver and beef, and pork and pickles are most undesirable items. 6) The most favorite snack is bread, cake, ice cream, chocolate, fruits and milk. 7) Both boys and girls like Kimchi, fried and saute foods but dislike Namul (seasoned green vegetables) the most. 8. The side dishes of the packed·lunch lack in variety of cooking method.
Polybrominated diphenyl ethers (PBDEs) are a group of brominated flame retardants (BFRs), which are used in a variety of consumer products. Several of those are produced in large quantities. Their chemical structure similarities to polychlorinated dibenzo-p-dioxins and polychlorinated biphenyls (PCBs), as well as their toxicity, has been studied. PBDEs are persistent and lipophilic, which results in their bioaccumulation in the fatty tissues of organisms and enrichment throughout food chains. In addition, a number of studies also reported high levels of PBDEs in animals and food resulting from the use of contaminated animal feed Public concern about PBDEs levels in animals and food has been raised. Feed contamination by toxic chemicals has been the cause of the contamination of poultry products. The purpose of this study was to evaluate PBDEs in pig feed to search the origin chase of POPs in pigs. Feed samples were obtained wheat from East Europe, corn from South America and America, soybean meal from Korea, America, South America and India and tallow from Korea. The preparation of samples was based on the EPA method 1614. Instrumental analysis was based on the use of high resolution gas chromatography coupled to high resolution mass spectrometry (HRGC/HRMS). Quantification was carried out by the isotopic dilution method. The analysis of ${\Sigma}PBDEs$ involved 22 PBDE congeners, including BDE-17, 28, 47, 49, 66, 71, 77, 85, 99, 100, 119, 126, 138, 153, 154, 156, 183, 184, 190, 191, 196 and 197.
The aim of this study was to investigate the effects of socio-demographic and health-related perceptions and twenty dietary behaviors on the superiority and preference, convenient use of and purchase motives of vegetables among 370 women(mean age 43.9) in Seoul and metropolitan and Gangwon area. Data was collected using a questionnaire developed in advanced studies. Almost all subjects rated vegetables more predominantly than grains or meats on the basis of health, diversity, and convenience to purchase. Recognition of healthly funcions of diet, purpose of diet and some dietary behaviors had influence on preference for vegetables. Those who recognized that diet had the function of disease control and prevention, knew the healthy options vegetables provide us, such as, preventing us from geriatric diseases, good sources of vitamins and minerals and considered other motives aside from health issues. From Pearsons's correlation analysis, it was revealed that sufficient time for meal preparation and pleasant eating and desirable life style and dietary attitudes, and a better understanding of nutrition were positively correlated with consumption of more vegetables and convenient use of vegetables. The subjects who recognized the ability of food to help prevent diseases, had a preference for vegetables and attitude to use nutritional knowledge and also considered the nutrition values of vegetables and environment friendliness. Everyday use of vegetables such as consuming a variety of different vegetables, a families favorite vegetables and variation of cooking methods had correlated positively with purchase motives. Therefore to encourage consumption of vegetables, it is important to notice three points continuously; first, practical information of nutritive values of vegetables, the contribution of vegetables in current animal protein foods centered diet and healthful functionalities. Second, the importance of regular diet and steadfast attitude and lifestyle. Finally, the quality of the market where the products are bought such as, quality control of freshness, sanitation, expression of producer and a pleasant environment to shop in.
The purpose of this study was to understand the characteristics of senior consumers' food-related lifestyle and to investigate their demand for menu development of senior' friendly food products. An one-to-one survey method was used for data collection, and the survey was conducted with 490 senior participants who are over 55 years-old living in Seoul and Kyunggi area. The main results of this study were as follows: Most participants usually spend from 60,000 to 150,000won on food a month, and the female participants played a decisive role on food purchasing and preparation. They preferred home meal for their three regular meals to bread, convenience food, or eating-out. For menu development of senior-friendly food products, the demand for food products using moist-heat cooking method was higher than those using dry-heat cooking method. Also, the respondents did not like strong taste such as salty, spicy, or bitterness in senior-friendly foods, and wanted to have a variety of noodle, kimchi, meat, seafood meals.
Nutrition during childhood is essential for growth and maintenance of health. Good food habits developed during the childhood will contribute both to the healthy growth and the prevention of the degenerative disease of later life. Both parents and the providers in child care centers play an important role for children's good eating behavior. Therefore all child care programs should achieve recommended standards for meeting children's nutritional and educational needs in a safe, sanitary, and supportive environment to promote the healthy growth and development of children. The purposes of this study were to evaluate the foodservice management practices and assess the needs for a Central Production Unit by contacting the child care center' providers. This approach was achieved using a variety of qualitative and quantitative information including the general foodservice management practices and the needs for a Central Production Unit. An indepth face-to-face interview with structured-questionnaires was undertaken at 32 representative child-care centers in Seoul. Statistical data analysis was done using the SAS program for descriptive analysis and ANOVA. The number of national/public and private sectors were 11 respectively, followed by 10 licensed home day-care centers. Total average number of children in child-care centers was 54.3 $\pm$48.5. The foodservice productivity index in child-care centers was 4.8 minutes per meal for public child care centers, 6.0 for private child-care centers, and 9.8 for home child care centers. Home child care centers were found to have the lowest productivity index which indicated inefficient foodservice practice. The important factors in group purchasing were menus(39.6%) or close distance(39.6%) > type of foodservice operation(32.8%) > total number of meals(19.9%) > food costs(16.2%) in order. Average score of the efficiency for central food production in child-care centers was 3.80 $\pm$0.84 out of 5.
Picky eating behavior is a significant factor in causing unhealthy eating and disturbing the growth of children. This study examined picky eating behaviors and food intake of 112 preschoolers aged 3~5 year, picky eaters (n=41) and non-picky eaters (n=71), living in Dobong-gu, Seoul metropolitan area, South Korea. Picky eating questionnaires and three consecutive 24-hour dietary recalls were collected from their caregivers. The difference between the two groups was verified using a Chi-square test or t-test and Pearson's correlation. Compared to the non-picky eaters, fussiness, satiety responsiveness, and refusal of food variety were significantly higher in picky eaters (P<0.001). Compared to the non-picky eaters, an assessnent of the preschooler's behavior and the caregivers' perception were positively correlated in picky eaters (r=0.749, P<0.001). The intakes of shellfish (P<0.05), vegetables (P<0.001), fiber, vitamin E (P<0.01), vitamin A, and folate (P<0.05) were significantly lower in picky eaters than the non-picky eaters. The major food sources of vitamin A and folate were vegetables, of which grains were the source of fiber, fats and oils were the source of Vitamin E, and root vegetables were source of vegetables in both picky and non-picky eaters. In conclusion, picky eating behaviors are related to different fussiness and slowness in eating. Therefore, it is suggested to increase the amount of meal and vegetable intake in picky eaters.
The purpose of this study is to investigate the effect of dietary fiber content of rice on the postprandial serum glucose and insulin responses in normal subject. Two rice varieties, Ilpum and Suwon 464 which are different in dietary fiber content, were cooked in pressure cooker and used for the test. The rice with a higher dietary fiber content gave a significantly lower glucose level (p<0.01) and insulin level (p<0.05) than did the normal rice variety. After a meal, the 60-min glucose levels of Suwon 464 and Ilpum were 90.3${\pm}$4.8mg/dl and 111.6${\pm}$2.7mg/dl, respectively. The glycemic index (GI) of Suwon 464 shows 64.5%, which was apparently lower than that of Ilpum. These results indicate that Suwon 464 high in dietary fiber can be useful in low-GI diets.
Four rumen-cannulated cows (330 kg average weight at 4 years) were used to evaluate the supplement of ensiled cassava tops (ECT) (variety KM 94, 39% DM) on rumen functions, thyroid hormones and liver enzymes. The treatments, arranged in a 4 $\times$4 Latin square design, were ECT at 0, 50, 100 and 150 g CP 100 kg$^{-1}$ body weight (BW), and a basal diet of urea-treated fresh rice straw (UFRS) ad libitum and 1.1 kg dry matter (DM) cassava root meal (CRM) in each 30 day study period. The results showed a continuous decrease in dry matter intake (DMI) of UFRS with increasing level of ECT supplement (p<0.001). The highest total DMI was observed for treatment ECT$_{150}$ (2.68 kg DM 100 kg$^{-1}$ BW day$^{-1}$) followed by treatments ECT$_{100}$, ECT$_{50}$ and ECT$_{0}$, with 2.47, 2.24 and 2.06 kg DM 100 kg$^{-1}$ BW⋅day$^{-1}$, respectively. Increasing levels of ECT supplement increased the concentration of total volatile fatty acids (p<0.05) and ammonia nitrogen (p<0.05) and resulted in a decrease in pH (p<0.05). Overall average plasma triiodothyronine and thyroxine concentrations were 0.80, 0.82, 0.85 and 0.69 ng ml$^{-1}$ (p>0.05), and 50.9, 49.5, 50.7 and 42.4 ng ml-1 (p>0.05) for treatments ECT$_{0}$, ECT$_{50}$, ECT$_{100}$ and ECT$_{150}$, respectively. There were non-significant differences in alanine aminotransferase and aspartate aminotransferase among treatments. It is concluded that ECT is a valuable protein-rich feed supplement to cattle, and the highest level of on average 2.48 kg DM ECT per cow and day (28% of total DMI) did not significantly affect thyroid gland hormones and liver enzymes in cows.
The purposes of this study were to (a) measuring attitude and satisfaction of Yonsei university students towards contracted vs. rented university foodservices, (b) determine university students' overall satisfaction & perception regarding the factors improved towards university foodservice and (c) provide recommendation on marketing strategies for university foodservices. Questionnaires were hand delivered to 600 Yonsei University students by designated coordinators. A total of 549 questionnaires were usable; resulting in an 93% response rate. The survey was conducted between October 12 to October 18, 1995. Statistical data analysis was completed using the SAS Programs for descriptive analysis, T-test, ${\chi}^2-test$, ANOVA, Factor Analysis and Stepwise Multiple Regression. The results of this study can be summarized as follows: 1. Performance mean score for contracted foodservice management in terms of food, menu, price, hygiene, facilities was higher than for rented foodservice management. 2. The average satisfaction score for contracted foodservice management in terms of price was lower than for rented foodservice management. There was no gap between contracted foodservice management and rented foodservice management in overall satisfaction score and price satisfaction score. 3. Perception regarding the factors improved of thirteen factors to be improved except operating hours, waiting time, price, food quantity were perceived as better by students. 4. Perception regarding the factors improved have correlation with foodservice qualify attribute's performance. 5. According to multiple regression analysis, 92.05% of the variance in respondents' satisfaction score could be explained by procedure after meal, purchasing procedure, operating hours, availability of breakfast, waiting time, atmosphere, price, facilities, service endeavor to survey satisfaction in foodservice, availability of kitchen and wall space, portion size, taste of food, change of cafeteria name, the number of seats, and variety of menu.
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