• Korean Journal of Community Nutrition
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• v.3 no.1
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• pp.53-61
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• 1998

This study was designed to estimate mean daily iron intake and its bioavailabi- lity and to assess nutrition knowledge for 144 pregnant women in the last trimester. Serum ferritin concentration was analyzed to estimate their iron stores. Dietary intakes of iron(heme iron and nonheme iron), the amounts of MPF(meat, poultry and fish) and ascorbic acid were assessed by modified 24-hr recall method. The food frequency questionnaire was used to assess subjects usual food consumption patterns. The mean value of serum ferritin was $21.3\pm{15.2ng/ml}$ and 26.4% of the pregnant women had a serum ferritin level <12ng/ml(i.e. depleted iron stores). The mean daily intake of total orin in the pregnant women was 56.5%(17.0mg) of RDA and heme iron intake was 0.94mg which was 5.5% of total iron intake. Total absorbable iron calculated by the method of Monsen was 2.41mg and bioavailability of dietary iron was 2.41%. Food frequency test score of meats group was positively correlated(r=0.443) with the bioaavailability of dietary iron. The mean score on the nutrition knowledge test of subjects was 12.76(out of a possible 20 points). These results indicate that the nutritional iron status may be improved by increasing either the amount of iron in the diet or its availability.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.29 no.6
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• pp.828-836
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• 1996

The histological changes of gill, liver, spleen and muscle, and respiration and blood variables and liver glycogen content were examined in black seabream, Acanthopagrus schlegeli. Fish were exposed to a high level of total ammonia nitrogen (10.4 mg/l) and recovered from exposure $(0.4{\pm}0.2mg/l)$ in a closed recirculating seawater system. In the process of exposure, mortality was $9\%$, and hyperplasia, necrosis or inflammation appeared in all tissues except for muscle. Oxygen consumption was decreased by $49\%$, and red blood cell (RBC) number, hematocrit and hemoglobin concentration were significantly decreased, while plasma glucose contents, activities of glutamate-oxaloacetate transaminase (GOT) and glutamate-pyruvate transaminase (GPT) increased. Liver glycogen content significantly increased from $6.6\%\;to\;10.4\%$. A large amount of hemosiderin was observed in the splenic tissue. During the recovery period, RBC number, hematocrit, hemoglobin concentration, GOT and GPT activities were returned to the normal status. Histological status of liver tissue was returned to the normal, but liver glycogen content was not recovered. During the recovery period, spleen melanin-macrophages temporarily increased, but subsequently decreased to the normal status.

• Journal of environmental and Sanitary engineering
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• v.16 no.1
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• pp.108-116
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• 2001

It is difficult to task to achieve high biological nutrient removal from municipal wastewater because of low organic content. Volatile fatty acids(VFAs) produced from acid fermentation of food wastes can be utilized as external carbon sources for the biological nutrient process. Significant reduction and stabilization of the food wastes can also be obtained from the acid fermentation. The objective of this study is to evaluate characteristics of acid fermentation of the food wastes. Results obtained from the batch experiment of various organic wastes showed that the food wastes had high potential to be used as an external carbon source because of the largest production of the VFAs with low nitrogen and phosphorus content. The fish waste was found to be the next possible organic waste, while the others such as radish cabbage and molasses waste showed high VFAs consumption potential as a results of high nitrogen and phosphorus content. alkaline hydrolysis of the food waste was carried out using NaOH prior to the acid fermentation. As the alkali addition increased, solubilization of the organics as well as TSS reduction increased. However, fraction of soluble COD to total COD became stable after a sharp increase. Alkali addition greater than 0.5g NaOH per g TS resulted in significant increase in pH.

• Korean journal of food and cookery science
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• v.26 no.3
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• pp.330-334
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• 2010

This study was performed to investigate the influence of seafood education on students' preferences and perceptions towards seafood menu items provided by school foodservice. The 62 representative menu items were selected from the complete menus provided by 10 high schools located in the Daegu Kyungpook area. Five hundred students were surveyed and 484 questionnaires were analyzed. The preference ($3.25{\pm}0.92$) of seafood menu items was not sufficiently high. The preference order of seafood menu items was rice > noodle > deep fry > grill> stir fry > seasoned dish > soup/stew > steam > pan fry > braise > fermented fish. Conversely, the most frequently provided menu items were soup/stew (31.34%), braise (18.06%), stir fry (15.61%), and seasoned dish (14.83%); the results showed no significant correlation between students' preference and the frequency with which the items were provided. Seafood education positively influenced the students' preference (p<0.001) and perceptions of the seafood acceptability (p<0.01), nutritional value (p<0.05), menu variety (p<0.05), diversity of cooking methods (p<0.001), cleanliness (p<0.001), and leftover amounts (p<0.01). However, more than half the students participating in this study have never received any type of education on seafood. Therefore, a practical program for seafood education should be developed to promote seafood consumption among young students.

• Journal of Community Nutrition
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• v.2 no.1
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• pp.52-61
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• 2000

Dietary guidelines are a distillation of dietary advice from health professionals to the general public. They are based upon current scientific knowledge about the relationships between diet and disease, nutrients available in the food supply of a country, and the profile of morbidity and mortality in that country. With two different sets of dietary guidelines used for more than an decade in Korea. the necessity of revising dietary guidelines has been raised continuously from academia and research. Funded by a grant from the Health Technology Planing and Evaluation Board. Dietary guidelines for each age group were drafted as a research project and the one for the Korean elderly is as follows: Dietary Guidelines for the korean elderly(draft) - Have a variety of easily digestible foods on time; at least 3 meals a day and some snakes. - Be physically active to maintain appetite and/or ideal body weight. ; maintain a balance between activity and what you eat. -Increase consumption of bean-and dairy-and dairy-products. - Consume enough amounts of fresh dark-green and yellow vegetables and fresh fruits. - Consume adequate amounts of assorted kind of animal foods including fish, meat and poultry. - If you drink alcoholic beverages, limit your intake and, drink enough water and other averages; alcohol may interact with your medication and affect your appetite. Aforementioned draft and related contents are expected to be utilized as a neat base in formulating(or revising) dietary guidelines for Korean by the Government in near future.

• Journal of the Korean Society of Food Culture
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• v.17 no.3
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• pp.289-298
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• 2002

This study was conducted to find sensitive indicator of food intake and specific food group related to cognitive function and to analyze the pathway among factors affecting food intake and cognitive function of the aged. 179 people over 50 years old were investigated and all the data were analyzed by SPSS 10.0 package. Food frequency was more sensitive indicator to show the relationship between food intake and cognitive function of the aged than the numbers of standard amount of food eaten. Consumption of grains and starch, meat, fish, eggs and beans were strongly related to cognitive function of the aged and intake of vegetables and fruits also have relationship with it. Moreover, the more frequent eating the carbohydrate and the protein, the higher the cognitive level of the aged. Age, education period, income, blood pressure, duration after retirement, frequency of physical activity and BMI were correlated with food intake and cognitive function of the aged. Among them, age and frequency of physical activity were most strongly correlated with food intake, and education period with cognitive function of them. This investigation shows that more stable intake of carbohydrate and protein containing foods need to be supplied to low income aged and the importance of physical activity of the aged must be emphasized with food intake for better life of the aged.

• The Korean Journal of Food And Nutrition
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• v.27 no.3
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• pp.507-521
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• 2014

The purpose of this study was to investigate the eating patterns, nutrient intakes, blood levels, and health status of male college students in Seoul according to body mass index (BMI). In this study, we classified subjects into normal weight (n=240), under weight (n=11), and obese (n=46) groups according to BMI. The weight and BMI were significantly higher in the obese group compared to other groups (p<0.0001). The obesity was associated with overeating and frequent eating. The under weight group showed significantly higher consumption of fast food, snacks, and fried foods compared to the other groups (p<0.05). The intakes of milk, meat, fish, eggs, and fried food and preference ratios were higher in the obese group (p<0.05). The male college students in this study showed insufficient intakes of calories, vitamin C, folic acid, and calcium. The plasma LDL-cholesterol levels in the obese group were higher compared to the other groups. In conclusion, intake of nutrients among male college students is found to be insufficient and requires nutritional education. The under weight group showed regular eating habits and increased nutrient intake. The obese group was shown to need more exercise with higher intakes of vegetables and fruits.

• Journal of the East Asian Society of Dietary Life
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• v.22 no.4
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• pp.463-472
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• 2012

This study was performed to investigate the iron status and its related factors in female college students residing in Gyeongnam. The prevalence of iron deficiency among subjects ranged from 3.4% in mean corpuscular hemoglobin concentration (MCHC) to 43.7% in ferritin. Weight, lean body mass (LBM) and body mass index (BMI) were positively correlated with ferritin concentration, but negatively correlated with total iron binding capacity (TIBC). Among the nutrients, vitamin A and B2 were major predictors of elevated iron status. Meal regularity was positively correlated with Fe and ferritin concentration, and meal number with transferrin saturation (TS), meal quantity with red blood cell (RBC) and hematocrit (Hct). Consumption of fruit, meat, fish and poultry showed strong positive correlation with hematological indices. Therefore, increasing vitamin A, B2, C, and iron intakes as well as maintenance of a healthy weight may be helpful in preventing iron deficiency in female college students.

• Journal of Dairy Science and Biotechnology
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• v.17 no.1
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• pp.16-31
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• 1999

Milk and milk products, especially the cow's milk and cheese, have been used since the ancient time. Because they contains almost all kinds of nutrients that are necessary for human beings except for iron, n-3 fatty acid, and vitamin C. Milk is an excellent dietary source of protein, calcium and phosphorus. The biological value of milk protein is as high as those of red meat and eggs. So cheese, a food processed from concentrated milk protein, is highly recommended food for the patient of diabetes mellitus. Because the major form of milk lipids is n-6 fatty acid, milk and milk products may not be a good food for the patients of cardiovascular disease. But the nutritional quality of milk lipids cannot be inferior to those of margarine, fish oil, and vegetable oil. Milk has been produced commercially since 1936 in Korea. The most popular milk product is a drink milk now in Korea. But according to the change of dietary pattern the consumption of yoghurt and cheese has been enormously increased during the last 20 years. As the soy sauce, tofu, and soy been paste have been the fundamental seasoning and source of protein in Korea, milk and cheese have consisted the essential flavor of western cuisine. But the basic idea for the usage of protein, peptides, and amino acids are the same. We found that milk and milk products can be nicely added in many Korean dishes such as Juk, Mandoo, Jeon, and Bindeatuk for the diversity of traditional flavor.

• Journal of Aquaculture
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• v.8 no.1
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• pp.21-29
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• 1995

Triploid cherry salmon (Oncorhynchus masou) were induced by the heat shocking treatment of fertilized eggs 10 minutes post fertilization at $28^{\circ}C$ for 15 minutes. Haematological and physiological characteristics of diploid and the induced triploid fish were examined just before the spawning period. Triploids had significantly lower concentrations of circulating red blood cells than that of diploids (P<0.01). However, oxygen consumption, hematocrit, hemoglobin, RBC, and mean concentration of hemoglobin within the RBC of triploids were higher than those of diploids. The concentrations of total protein, albumin and cholesterol from triploids were also higher than those from diploids.