• Nutrition Research and Practice
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• 제6권4호
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• pp.308-314
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• 2012

Radish (Raphanus sativus L.) is a cruciferous vegetable, and its leaves have antioxidant and anticancer properties. This study was conducted to evaluate the effects of ethyl acetate extracts from radish leaves on hypertension in 11-week-old spontaneously hypertensive rats (SHRs). The SHRs were randomly divided into 3 groups of 6 rats each on the basis of initial systolic blood pressure (SBP) and were treated with oral administration of radish leaf extract (0, 30, or 90 mg/kg body weight [bw], respectively) for 5 weeks. Six Wistar rats were used as normotensive controls. The amount of the radish leaf extract had no effect on body weight. The SBP of the SHRs showed a decreasing trend with the consumption of the radish leaf extract. In the third week, the SBP of the group fed 90 mg extract/kg bw reduced from 214 mmHg to 166 mmHg and was significantly lower than that of the normotensive and hypertensive controls. The extract did not show a significant effect on the angiotensin-converting enzyme (ACE) activity in the serum, kidney, and lung. The extract increased the concentration of NO in serum and the activities of antioxidant enzymes such as glutathione peroxidase and catalase in red blood cells (RBCs). The serum concentrations of $Na^+$ and $K^+$ were not significantly different between all groups. However, the fecal concentrations of $Na^+$ and $K^+$ increased; the fecal concentrations of $Na^+$ and$K^+$for the normotensive and hypertensive controls were not different. Urinary excretion of $Na^+$ was higher in the normotensive Wistar rats than in the SHRs, while that of $K^+$ was not significantly different. These findings indicate that consumption of radish leaves might have had antihypertensive effects in SHRs by increasing the serum concentration of NO and fecal concentration of $Na^+$ and enhancing antioxidant activities.

• Journal of Nutrition and Health
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• 제39권2호
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• pp.145-159
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• 2006

This study was performed to investigate the stress level, dietary attitudes and nutrient intakes of Food and Nutrition major female students at a university located in Changwon. A total of 122 female students taking the course 'Meal Management' during 2001-2004 participated in this study. The general characteristics, stress level and dietary attitudes of the subjects were surveyed using a self-administered questionnaire. The nutrient intake data collected from 3-day food-record method were analyzed by the Computer Aided Nutritional Analysis Program. The symptoms by stress showed that 'eye strain', 'physically exhausted or get tired' and 'pains on neck or shoulders' were high in 59.4-81.8%. The mean scores of stress in 2001-2004 were 8.5-12.0 out of 30 points and the subjects in 2002 and 2004 scored significantly higher on stress level than the subjects in 2001 did (p < 0.00. The mean scores of dietary attitudes were 58.7-66.6 out of 100 points, most of the subjects are belonged to the 'fair' group in terms of dietary habits level. The stress level had a negative correlation with dietary habits (p < 0.001). About 1/3 of the subjects, the intake of calcium, vitamin $B_2$, vitamin A and iron were less than 75% of Korean RDA, whereas more than half of the subject, protein, vitamin C and phosphorus intake were more than 125% of RDA, and intake ratio of Ca and P showed an unbalance of 1 : 2. The animal protein intake was higher than the plant protein, whereas the animal vitamin A and iron intake were lower than vegetable food source. In 2001-2004, the index of nutritional quality (INQ) of vitamin $B_2$ and niacin was 0.56-0.98, and in 2003, the INQs of vitamin $B_2$ was 0.56, and that of niacin was 0.67, which was extremely low when compared to that of the other nutrients. Therefore, nutritional education is necessary if female university students are to practice optimal nutrition, including well-balanced diets of high nutritional quality.

• 대한영양사협회학술지
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• 제4권1호
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• pp.30-39
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• 1998

This study was carried out to investigate the job characteristics and relationships between general characteristics and job satisfaction of the dietician in community health center. The subjects were 40 dieticians who responded to the questionnaire distributed at the annual education program in 1997. Statistical data analysis was completed using SAS package program for frequencies, means, $x^2$-test, ANOVA and Duncan's multiple range test. The results of this study can be summarized as follows. 45.0% of the dieticians were 26 to 30 years old, four-year-course university graduates were 75.0% and daily workers were 72.5% The level of the job satisfaction of the dietician in community health center was the highest in the relationship with colleagues. The other parts of job satisfaction such as effects of nutrition counselling and education, value achievement as a dietician, general work and supervision by supervisors were above average, The general characteristics such as the age, the level of education, employment conditions, working hours per week and total length of service were significantly to all fields of job satisfaction except general work.

• Journal of Nutrition and Health
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• 제36권1호
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• pp.18-23
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• 2003

We studied the effects of hot water extract of Inonotus obliquos mushroom on the proliferation and apoptosis of the human colon adenocarcinoma, HT-29 and the human stomach adenocarcinoma, SNU-484 cell. Cells were maintained with Dulbecco's modified Eagle medium/Ham's F-12 nutrient mixture supplemented with 10% fetal bovine serum at 37$^{\circ}C$ in a humidified $CO_2$. For the cell proliferation experiments, cells were seeded in 35 mm dishes, and were treated with the various concentrations of the extract for the different time course. Apoptosis was measured by caspase-3 activity. When we incubated HT-29 cells for 24, 48, 72, and 96 hours after treatments, the cell proliferation was more suppressed with more treatment time. In case of the human stomach cancer cell, SNU484, the extract significantly decreased the cell number. Thus, the treatment of 1.5 mg/$m\ell$ extract decreased almost half of the cell number. Caspase-3 activity in HT-29 was increased by the treatment of mushroom extracts. In SNU484, caspase-3 activity tended to increase in proportion to the amounts of the extracts and the treatment of Inonotus obliquos affected the activity a lot. Therefore, Inonotus obliquos is suggested for the prevention of gastro-intestinal cancer and strongly recommended for the treatment of stomach cancer. (Korean J Nutrition 36(1) : 18~23, 2003)

• Preventive Nutrition and Food Science
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• 제20권1호
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• pp.60-66
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• 2015

The aim of this study was to determine the heat-penetration characteristics using stationary and rotary retorts to manufacture Kimchi soup. Both heat-penetration tests and computer simulation based on mathematical modeling were performed. The sterility was measured at five different positions in the pouch. The results revealed only a small deviation of $F_0$ among the different positions, and the rate of heat transfer was increased by rotation of the retort. The thermal processing of retort-pouched Kimchi soup was analyzed mathematically using a finite-element model, and optimum models for predicting the time course of the temperature and $F_0$ were developed. The mathematical models could accurately predict the actual heat penetration of retort-pouched Kimchi soup. The average deviation of the temperature between the experimental and mathematical predicted model was 2.46% ($R^2=0.975$). The changes in nodal temperature and $F_0$ caused by microbial inactivation in the finite-element model predicted using the NISA program were very similar to that of the experimental data of for the retorted Kimchi soup during sterilization with rotary retorts. The correlation coefficient between the simulation using the NISA program and the experimental data was very high, at 99%.

• 한국식품영양과학회지
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• 제35권1호
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• pp.109-114
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• 2006

해양생물 및 토양으로부터 총 619주의 알긴산 분해능을 나타내는 균주를 분리하여 이중 분해능이 강력했던 균주의 배양 조건 및 효소 생산 조건을 실험한 결과, 탄소원으로는 Na-alginate $2\%$, 질소원으로 nutrition broth $0.1\%$, NaCl 농도 $2\%$, pH 7.5, 배양 온도는 $30^{\circ}C$, 배양 시간은 $144\~150$ 시간이 최적 배양 및 효소 생산 조건이었다. 아울러 균체의 생리, 생화학적 특성을 분석한 결과, 본 실험 균주가 Bacillus licheniformis로 동정 되어 최종 Bacillus licheniformis AL-577로 명명하였다.

• Clinical Nutrition Research
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• 제5권3호
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• pp.172-179
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• 2016

Acid food indicators can be used as pH indicators for evaluating the quality and freshness of fermented products during the full course of distribution. Iron oxide particles are hardly suspended in water, but partially or completely agglomerated. The agglomeration degree of the iron oxide particles depends on the pH. The pH-dependent particle agglomeration or dispersion can be useful for monitoring the acidity of food. The zeta potential of iron oxide showed a decreasing trend as the pH increased from 2 to 8, while the point of zero charge (PZC) was observed around at pH 6.0-7.0. These results suggested that the size of the iron oxide particles was affected by the change in pH levels. As a result, the particle sizes of iron oxide were smaller at lower pH than at neutral pH. In addition, agglomeration of the iron oxide particles increased as the pH increased from 2 to 7. In the time-dependent aggregation test, the average particle size was 730.4 nm and 1,340.3 nm at pH 2 and 7, respectively. These properties of iron oxide particles can be used to develop an ideal acid indicator for food pH and to monitor food quality, besides a colorant or nutrient for nutrition enhancement and sensory promotion in food industry.

• Neonatal Medicine
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• 제25권4호
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• pp.196-201
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• 2018

Umbilical venous catheterization (UVC) is a common practice in intensive neonatal care. However, a malpositioned UVC and its prolonged use may lead to various problems, including mechanical, infectious, and thrombotic complications in various organs such as the liver, lungs, and heart. Congenital chylous ascites is characterized by abnormally high levels of triglycerides in the peritoneal fluid of newborns, which originate from refluxed lymph within the abdominal cavity. Herein, we report a case of an UVC complication presenting as chyloperitoneum simulating congenital chylous ascites in a preterm neonate that resulted from total parenteral nutrition (TPN) extravasation from a malpositioned UVC. Biochemical analysis of intraperitoneal chylous fluid and TPN infusate could help confirm the origin of chyloperitoneum. This case suggests that TPN extravasation from UVC should be considered when chyloperitoneum develops in newborns with an indwelling catheter. UVC positions must also be carefully monitored at regular intervals to recognize associated complications early, particularly in cases with an inevitably malpositioned catheter related to the anatomy of the vessel course.

• 대한영양사협회학술지
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• 제11권2호
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• pp.205-215
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• 2005

Health is easily overlooked because it doesn’t be changed good or bad due to sudden effort or indifference unexpectedly but kept in daily life. Especially, schoolchildren period, an important lifetime to develop both physically and mentally needs to be helpful to promote the growth of the body and keep well-balanced mind through balanced and nourishing diet. The purpose of this study was to develop nutrition education contents for discretional activities in elementary school. The present educational contents about food and nutrition was analysed in the curriculum of elementary school. The results showed the Korean language(20.8%) included an highest ratio in educational contents about food and nutrition, the next was the courses of physical education and wise life(18.1%, each). As the educational contents about food and nutrition in the textbook were dealt with food information (20.8%), Health․Disease(15.3%), and correct dietary habits by order. We could found more contents in the text for the higher classes than for the lower classes. But the most of the contents appeared lack of structure, profundity and continuity for the systematic nutrition education in its entirety. The developed nutrition education contents for discretional activities in this study consist of korean dinning cultures and foreign dinning cultures, correct dinning etiquette, how to choose healthy food, personal sanitary and health, nutrients and food tower, and problem for children’s nutrition as main subject. This six main subjects were composed of 23 subtitles. The teaching manual consisted of the educational goal, background, teaching plan and effect-evaluation plan, and the notice point for the effective lesson. The teaching plan was made for 30 hours and consisted of cooking course, singing/making lyrics, games in nutrition, debate on dietary habit, and role play etc which are oriented to practical learning. We intended to develop this program that attempts to improve in dietary habit of schoolchildren. It is because once formed an adults dietary habit is difficult to change. Schoolchildren’s period is the best adjustable stage. Therefore, nutrition education in elementary stage can change to dietary habit and build the awareness of health.

• 대한지역사회영양학회지
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• 제4권2호
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• pp.166-174
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• 1999

We examined the obesity levels and dietary habits of 323 college students taking the course 'Health and Diet' as a part of their nutritional education. The average percentages of body fat, BMI and RBW for subjects in this study were 16.7%, $21.5kg/m^2$ and -1.2% in male students and 27.3%, $21.2kg/m^2$ and 1.0% in female students, respectively. BMI and RBW indicated fewer cases of obesity among female students than BIA did. The average intake of energy by subjects was lower than the RDA of energy. In particular, the average intakes of calcium, iron, and vitamin A by female students were much lower than the RDA of energy. In particular, the average intakes of calcium, iron, and vitamin A by female students were much lower than the RDAs of each of those nutrients. The percent RDAs of nutrient intakes of energy, protein, thiamin, and riboflavin were lower in under weight students than in students of normal and over-weight. Female students were found to skip meals and consume sweet foods more frequently than male students. The obesity levels of students related to the number of meals eaten per day as well as the frequency of consuming sweet foods. Although, it was not possible to determine statistically, the levels obesity also seemed to correspond to the speed at which meals were eaten as well as the frequency of eating salty foods. These results suggest that in order to assess obesity properly, more research that focuses on subjects' gender should be conducted. In addition, nutritional education should emphasize the importance of intakes of energy and phosphorus for male students, and the danger of iron and calcium deficiencies for female students. We should also educate students about dietary habits which contribute to obesity such as overeating and the intake of sweet foods.