• Korean Journal of Community Nutrition
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• v.10 no.5
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• pp.603-614
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• 2005

This study was performed to investigate the correlation between Premenstrual syndrome (PMS) and nutritional intake, blood composition of female students. One hundred and one female students were selected as the experimental subjects at Gyeongsang National University. To assess the PMS symptoms of the subjects, a questionnaire (PAP) score based on the methods of Halbreich, Endicor and Nee was prepared with 34 different items. Dietary survey was conducted by 24­hour recall method for 3 days and nutrient intakes were analyzed by the CAN-Pro. Blood composition of WBC, RBC, Hb, Hct, Ca and Mg was measured. The average height, weight and BMI of subjects were $160.7\pm4.6cm,\;54.1\pm5.7kg\;and\;21.2\pm1.9$, respectively. Average intakes of energy, calcium, iron, zinc, vit $B_2$, and folic acid per day were $1810.2\pm344.9kcal(90.5\%\;of\;RDA),\;621.1\;197.3mg(88.7\%\;of\;RDA),\;15.9\;pm4.9mg\;(99.3\%\;of\;RDA),\;8.1\pm3.4mg(80.5\%\;of\;RDA),\;1.1\pm0.6mg(88.3\%\;of\;RDA)\;and\;234.3\pm78.6{\mu}g(93.7\%\;of\;RDA)$, respectively. Score of the behavioral symptoms, psychologic symptoms, physical symptoms and other symptoms were recorded $1.79\pm0.86,\;2.11\pm1.08,\;2.31\pm1.11\;and\;1.58\pm0.86$, respectively. The relation between PMS and menstrual cramps was significant. A significant difference was observed for menstruation amount in physical symptoms (p<0.05) and other scores (p<0.05). The group who drinks alcohol over 30g per day showed higher scores at total PAP (p<0.05), psychologic symptoms (p<0.05), physical symptoms (p<0.05), and other scores (p<0.05) than those who don't drink alcohol. Calcium in the blood showed a negative correlation with total PAF score (p<0.05), behavioral symptoms (p<0.05), physical symptoms (p<0.05) and other scores (p<0.01). Magnesium in the blood showed a negative correlation with physical symptoms (p<0.05), other score (p<0.05). WBC was negatively associated with psychologic scores (p<0.05). Hb and Hct were negatively associated with other scores (p<0.05). In conclusion, calcium intake showed a level of $88.7\%$ of RDA and this study revealed that there is a correlation between PMS and blood composition in female college students. Therefore, calcium and magnesium supplements can be beneficial to relieve PMS symptoms.

• Journal of the Korean Society of Food Science and Nutrition
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• v.39 no.1
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• pp.105-109
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• 2010

This study was conducted to analyze nutrient composition of a genetically modified $\beta$-carotene biofortified rice (GM rice), developed by the Rural Development Admistration in Korea. The nutritional constituents of GM rice were compared with those of the parental rice cultivar 'Nakdong' as a non-GM control to access nutritional equivalence. Proximate components (moisture, starch, protein, lipid, and ash) of the GM rice were similar to those of the conventional non-GM rice. $\beta$-Carotene contents of GM brown and milled rice were 2.35, 2.03 ${\mu}g/g$(d.b.), respectively. There were no significant differences between the GM and non-GM rice with respect to most of their nutrient composition, despite minor differences in most amino acids and minerals. This result demonstrated that the nutritional composition of this GM rice would be equivalent to that of the parental non-GM rice without major changes in its chemical contents.

• Journal of Life Science
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• v.21 no.4
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• pp.568-575
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• 2011

TMR feed developed by adding mugwort originating from Jeju Island,was fed to Hanwoo to investigate the effects of feeding mugwort on nutritional composition, as well as the feasibility of producing Hanwoo beef with high quality and functionality. The samples for the experiment consisted of Hanwoo fed fattening cattle TMR feed without mugwort (control), and Hanwoo fed fattening cattle TMR feed with added mugwort (treatment). Feeding mugwort did not lead to a significant difference in the moisture, crude protein, crude fat, crude ash, calorie, cholesterol, and collagen contents. There was no significant difference between the control and treatment groups in mineral components. The control and treatment groups had total mineral amounts of 3,559.20 and 3,998.01 ppm, respectively. The total amount of structural amino acids did not show any significant difference between the control (14.56%) and treatment groups (13.90%). The total amount of free amino acids did not show any significant difference between the control (763.044 ppm) and treatment groups (720.885 ppm). The composition of saturated fatty acids was 42.956% for the control and 40.918% for the treatment group. Further, the composition of unsaturated fatty acids was 57.044% for the control and 59.082% for the treatment group. Myristic acid, myristoleic acid, pentadecenoic acid, palmitic acid, and ${\gamma}$-linolenic acid were increased by feeding mugwort. Arachidic acid was contained the most among the fatty acid of Hanwoo fed feed without mugwort (p<0.05).

• Journal of Life Science
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• v.19 no.8
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• pp.1081-1087
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• 2009

In this study, the effects of feeding citrus peel on the nutritional composition of chicken meat were investigated. The samples consisted of chicken meats provided with only feed for laying hens without citrus peel (CP-0), and chicken meats fed with 1.0%, 1.5% and 2.0% citrus peel during the starter (initial period feed; 1${\sim}$9th day), the grower (middle period feed; 10${\sim}$24th day), and the finisher (latter period feed; 25${\sim}$36th day), respectively. There was no significant difference between CP-0 and CP-1 regardless of feeding citrus peel in terms of chicken's moisture, protein, fat, ash or caloric content. The cholesterol content was significantly lower in the CP-1 chicken meats than in the CP-0 chicken meats (p<0.05). The K P and Ca contents were significantly higher in the CP-1 chicken meats than in the CP-0 chicken meats (p<0.05), but there were no significant differences between CP-0 and CP-1, regardless of feeding citrus peet in terms of chicken meat's Na and Mg. There were no significant differences between CP-o and CP-1 regardless of feeding citrus peet in terms of chicken meat's vitamin A, xanthophyll, ${\beta}$-carotene, hesperidin or naringin, but vitamins $B_1$ and $B_2$ were significantly higher in the CP-1 chicken meats than in the CP-0 chicken meats (p<0.05). There were no significant differences between CP-0 and CP-1 regardless of feeding citrus peet in terms of chicken meat's amino acid composition - most of free amino acids and fatty acid composition - but L-glutamic acid was significantly higher in the CP-0 chicken meats than in the CP-1 chicken meats, and the DL-${\beta}$-amino isobutyric acid was significantly higher in the CP-1 chicken meats than in the CP-0 chicken meats (p<0.05).

• The Korean Journal of Food And Nutrition
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• v.34 no.5
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• pp.449-457
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• 2021

This study analyzed the nutritional composition (proximate composition, total dietary fiber, calories, minerals, fatty acids, and amino acids) of 10 noodle products (tteok ramyun, jjamppong ramyun, kimchi ramyun, instant udon, cup ramyun, jajangmyun, bibimmyun, cream spaghetti, ssalguksu, and milmyun), which account for 85% of the cumulative intake of one or more key nutrients, using data from the 7^th Korea National Health and Nutrition Examination Survey. The moisture contents of bibimmyun, jajangmyun, and cream spaghetti were lower than those of the other noodle products, whereas the crude fat, crude protein, carbohydrate, and calorie contents were the highest. Cream spaghetti had the highest mineral, fatty acid, and amino acid contents, followed by bibimmyun and jajangmyun. Ssalguksu had the lowest contents of most nutrients. These data could be used to populate a food composition database, which can provide consumers with the nutritional information about frequently consumed noodle products.

• Food Science and Biotechnology
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• v.17 no.3
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• pp.470-474
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• 2008

The whole berry, pulp, and seed of sea buckthorn fruit were extracted with supercritical $CO_2$ to produce edible oils. The effects of extraction pressure, temperature, and $CO_2$ flow rate on the oil yield and extraction rate were investigated, and the fatty acid composition, tocopherol, and carotenoid contents of the oils were compared. The results showed that the extraction rate was affected by pressure, temperature, and $CO_2$ flow rate and, in general, the yield increased with a rise in any of the 3 variables. Fatty acids in the whole berry and pulp oil were dominated by monounsaturated fatty acids (>64%), followed by saturated fatty acids (about 30%). In contrast, fatty acids in the seed oil consisted mainly of polyunsaturated (>60%) and monounsaturated fatty acids (>24%). The seed oil had a slightly higher content of tocopherols, but a much lower content of carotenoids, compared with the whole berry or pulp oil.

• Nutrition Research and Practice
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• v.2 no.1
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• pp.35-40
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• 2008

A cross-sectional study involving 400 mothers was conducted in the Manya Krobo district of Ghana with the objective of studying household dietary practices, quality of diets and family nutritional status of rural Ghana, A combination of methods, including structured interviews using questionnaire, dietary assessments and anthropometry was used to collect data for the study. The data obtained was analyzed using Statistical Package for Social Sciences (SPSS) Version 10 in Windows. Means and standard deviations were generated for continuous variables and frequency distribution for categorical variables. Most women consumed meals three times a day but only a few (12.5%) cooked all three meals at home. Breakfast and lunch were the two main meals purchased from food vendors. The most frequently consumed food items on daily basis were the starchy staples, maize, fish, pepper, onion, tomato and palm fruits. The nutritional qualities of diets were poor in terms of calcium and the B-vitamins. A significant proportion of the women were nutritionally at risk of being either underweight (12%), overweight (17%) or obese (5%). For adequate nutrition in this population, nutrition education intervention programs aimed at improving nutrient intake through improved diet diversity and increased use of local foods rich in calcium and the B-vitamins needs to be undertaken. There is also the need to intensify education on excessive weight gain and its attendant health problems in the area.

• Food Science of Animal Resources
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• v.38 no.1
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• pp.52-63
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• 2018

Cheese consumption has been gradually increased in China. However, both the manufacturing process of cheese and the utilization of its main by-product were not well developed. Based on the sensory evaluation, Box-Behnken Design (BBD) was performed in the present study to optimize the cheese processing, which was proved more suitable for Chinese. The optimal parameters were: rennet 0.052 g/L, start culture 0.025 g/L and $CaCl_2$ 0.1 g/L. The composition analysis of fresh bovine milk and whey showed that whey contained most of the soluble nutrients of milk, which indicated that whey was a potential resource of cyclic adenosine-3', 5'-monophosphate (cAMP). Thus, the cAMP was isolated from whey, the results of high-performance liquid chromatography (HPLC) analysis showed that the macroporous adsorption resins (MAR) D290 could increase the concentration of cAMP from $0.058{\mu}mol/mL$ to $0.095{\mu}mol/mL$. We firstly purified the cAMP from the whey, which could become a new source of cAMP.

• Journal of the Korean Society of Food Culture
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• v.14 no.4
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• pp.319-331
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• 1999

This nutritional survey was conducted in February 25, 1999, in order to investigate the nutritional knowledge, dietary attitudes and nutrient intakes of dietitians living in Kangwon area. Subjects consisted of 250 dietitians, with 184 in school food service, 14 in hospital food service and 52 in institution food service. Data were analyzed for frequencies, means, t-test, $x^2$-test, ANOVA and Pearson correlation using SPSS PC Package. The results obtained are summarized as follows: The average nutritional knowledge score was 10.15 out of possible 15 points, and dietary attitude score was 67.93 out of 100 points. The correlation between nutritional knowledge score and dietary attitude score was lowly(${\gamma}=-0.25$). Nutrients consumed below the Korean RDA were energy (78.77%), Ca(90.5%), Fe(83.70%) and nutrients consumed above the Korean RDA were protein(110.83%), P(140.21%), vit.A(163.94%), $vit.B_2$(126.37%), niacin(121.12%) and vit C(231.86%). Carbohydrate, protein and fat ratio on energy composition was 63%:17%:20%. The nutrient density among 3 groups of dietitian was not significantly different.

• Korean Journal of Organic Agriculture
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• v.19 no.4
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• pp.513-528
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• 2011

This study was conducted to evaluate the nutritional value of locally produced organic agricultural by-products to substitute imported organic feeds for organic ruminant farming. Imported organic feeds (corn grain, soybean meal, soybean seed, oat grain, barley grain, wheat grain, buckwheat, sunflower seed meal) and byproducts (rice bran, grape seed meal, rice straw, soybean hull, soybean curd, rice hull, green kernel rice, and crushed rice grain) were analyzed for chemical composition and NDF, ADF, mineral, and amino acid contents and anti-nutritional factors. Dry matter, NDF and ADF contents in organic feeds were higher than those in conventional feeds. Especially, the 9.65% fat content of organic soybean meal was 6 times higher than the 1.95% fat content of conventional soybean meal. Fat contents of rice bran, grape seed meal, green kernel rice, and crushed rice grain were 25.66, 6.09, 3.57 and 1.59%, respectively. Protein contents of soybean hull and soybean curd were 14.68 and 19.87%, respectively, which are highest among organic by-products. Levels of aflatoxin in all feeds were below the safety level. Therefore, organic rice bran, green kernel rice and crushed rice as energy source, and soybean hull and soybean curd as protein source could partial replace imported feeds for organic ruminant farming.