• 한국식품영양학회지
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• 제30권4호
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• pp.759-770
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• 2017

Stress has been associated with poor eating behavior and diet quality. Yet, the relationship between nutrient and food intake and perceived stress in Korean female adults has not been validated. The purpose of this study is to identify the relationship between nutrient and food intake and perceived stress in Korean female adults. This is a cross-sectional study based on the 2014-2015 Korean National Health and Nutritional Examination Survey data. This study investigated 2,010 female adults age 19~64. In this study, according to subjects' perceived stress, we classified subjects into very low-stress recognition group (VLSRG) (n=211), low-stress recognition group (VSRG) (n=1,223), high-stress recognition group (HSRG) (n=488) and very high-stress recognition group (VHSRG) (n=88). Daily nutrients and food group intake, food groups consumed (Dietary Diversity Score, DDS) were analyzed using data from the 24-recall method. The VHSRG had a larger proportion of subjects that were younger (p<0.0001), single (p<0.0001) and smokers (p<0.0001) compared to the VLSRG. Energy and food intake did not differ between the four groups. Percentage of subjects with protein (p=0.0322), vitamin A (p=0.0364) and vitamin C (p=0.0115) intake lower than the EAR (estimated average requirement) in the VHSRG were significantly lowest in the four groups. Also, food intake percentage from fruits and seaweed groups in the VHSRG were lower than other groups (p=0.0034, p=0.0015). DDS in the VHSRG (3.87) was significantly lowest in the four groups (p=0.0022). Results suggest that perceived stress in Korean female adults may by significant to consider in nutritional education programs.

• Journal of Animal Science and Technology
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• 제61권2호
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• pp.87-97
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• 2019

Phytate induced excessive mineral excretion through poultry litter leads to poor performance and environmental pollution. Exogenous microbial phytase supplementation to poultry diets reduce the environmental excretion of nutrient and improve bird's performance. However, excessive dietary sodium (Na) level may hinder the phytase-mediated phytate hydrolysis and negate the beneficial effects of phytase. Therefore, this experiment was conducted to investigate the effects of different concentration dietary Na on phytase activity and subsequent impact on broiler performance, bone mineralisation and nutrient utilisation. In this study, six experimental diets, consisting of three different levels of Na (1.5, 2.5, or 3.5 g/kg) and two levels of microbial phytase (0 or 500 U/kg) were formulated by using $3{\times}2$ factorial design. The six experimental diets were offered to 360 day-old Ross 306 male chicks for 35 days, where, each experimental diet consisted of 6 replicates groups with 10 birds. Along with growth performance, nutrient utilization, intestinal enzyme activity, dry matter (DM) content of litter and mineral status in bone were analysed. Dietary Na and phytase had no effect on bode weight gain and feed intake. Birds on the low Na diet showed higher (p < 0.05) feed conversion ratio (FCR) than the mid-Na diets. High dietary Na adversely affected (p < 0.001) excreta DM content. Phytase supplementation to the high-Na diet increased (p < 0.01) the litter ammonia content. High dietary Na with phytase supplementation improved ($Na{\times}phytase$, p < 0.05) the AME value and ileal digestibility of Ca and Mg. The total tract retention of Ca, P, and Mg was reduced with high Na diet, which was counteracted by phytase supplementation ($Na{\times}phytase$, p < 0.001). The diets containing mid-level of Na improved (p < 0.001) the function of Na-K-ATPase and Mg-ATPase in the jejunum. The overall results indicate that high dietary Na did not affect phytase activity but influenced the nutrient utilization of birds, which was not reflected in bird overall performance.

• 농업과학연구
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• 제49권4호
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• pp.871-879
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• 2022

An increasing global population requires a greater food supply, and accordingly there is demand for enhanced production of rice, as a major crop plant that covers half of the world's population. Rice production in arid area is extremely difficult due to poor soil fertility, salinity, deficit of irrigation water, and weather conditions. The aim of the present study was to determine whether various fertilization recipes could provide a countermeasure to allow rice production while also providing soil amendment such as soil pH adjustment. The study was conducted at an experimental field of the United Arab-Emirates (UAE) from January to April, 2022. Rice seedlings (cv. Asemi, alkaline-resistant) were transplanted in plastic containers, and different types of water and nutrient managements were employed as follows: water management (flooding and aerobic for NPKs treatment group) and nutrient management (NPKs, slow release fertilizers [SRFs] and SRFs + NPK-1 treatment groups with flooding). Water and nutrient management did not show any effect on soil pH adjustment. Rice growth was significantly enhanced in the flooding compared to the aerobic condition, whereas the effect of nutrient management clearly differed among the treatment groups, with SRFs + NPK-1 showing the best results followed by SRFs and NPKs. Most of the fertilization groups markedly accumulated soluble sugars in the shoots and grains of rice plants, but concomitantly a decrease in the roots. Overall, the level of starch showed a tendency of relatively slight perturbation by fertilization. Taken together, the results indicate that soil physical structure should be preferentially amended to find the key for suitable rice production.

• Journal of Nutrition and Health
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• 제12권4호
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• pp.1-10
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• 1979

This study was conducted to abbess dietary intake and eating habits of low-income persons aged 60 years or elder. 212 persons were surveyed between July 10 and August 17, 1978 ; 105 from the farming village of Yang-ju, Kyunggi province; and 107 from Karakdong, an area of redevlopment in the suburbs of Seoul. Results were as follows : 1 ) Family environment 84% of elderly persons surveyed, lived with their children; 13.2%, together as a couple; and 1.9%, widowed, lived alone. More than half on the households had an average monthly income of \50,000 to \30,000. The average Engel index was 61.2%. As for pocket money, 56.4% of male subjects had \l,000 to \7,000 per month, whereas 74% of female had less than \1,000. 2) Anthropometric measurements 59.9% of subjects were $70{\sim}90%$ of standard weight, 93% had an arm circumference only $60{\sim}80%$ of the standard. 3) Food and nutrient intake Carbohydrate provided 73.4 to 79.4% of total energy intake, whereas protein and fat accounted for 10.4 to 10.5% and 8.3 to 7.8%, respectively. Those over 65 years of age showed a somewhat greater dependence on carbohydrates for energy, than those under 65. Protein intake was only $42{\sim}52%$ of the recommended allowance. and the proportion of animal protein to total protein was only $2.1{\sim}9.3%$ far below the recommended allowance. Thus the protein nutrition of the subjects was proven to be inadequate qualitatively as well as quantitatively. Intake of energy and of all nutrients except vitamin A and ascorbic acid, were lower than recommended. 4) Correlational assessment The correlation coefficient between poor dental health, clinical sign score, appetite index, dietary balance and nutrient intake, was significant (0<0.01). Poor teeth, illness, and poor appetite were always associated with inadequate intake of energy and nutrients. The results of this survey reveal that many of elderly of the rural and urban poor show evidence of general malnutrition, The authours hope that this study will provide a back. ground and indicate the direction that community health and welfare programs may take to assure proper nutrition for the elderly.

• Nutrition Research and Practice
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• 제1권2호
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• pp.143-149
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• 2007

Inadequate dietary intakes and poor health behaviors are of concern among rural residents in Korea. This study is conducted to compare dietary intakes, dietary diversity score (DDS), mean nutrient adequacy ratio (MAR) and health related behaviors by rural, factory and urban areas in Asan. A total of 930 adults (351 men and 579 women) were interviewed to assess social economic status (SES), health related behaviors and food intakes by a 24-hour recall method. Mean age was 61.5 years with men being older (64.8 years) than women (59.3 years, p<0.001). Men in the factory area were older than rural or urban men while urban women were the youngest. Education and income of urban residents were higher than other area residents. There were more current drinkers in urban area while smoking status was not different by regions. Physical activity was significantly higher in rural or factory areas, whilst urban residents exercised more often (p<0.05). Rural or factory area residents considered themselves less healthy than others while perceived stress was lower than urban residents. Energy intakes were higher in urban residents or in men, however, after SES was controlled, energy intake did not show any differences. Energy-adjusted nutrient intakes were significantly higher in the urban area (p<0.05) for most nutrients except for carbohydrate, niacin, folic acid, vitamin $B_6$, iron and fiber. Sodium intake was higher in factory area than in other areas after SES was controlled. DDS of rural men and MAR of both men and women in the rural area were significantly lower when SES was controlled. In conclusion, dietary intakes, diversity, adequacy and perceived health were poor in the rural area, although other health behaviors such as drinking and perceived stress were better than in the urban area. In order to improve perceived health of rural residents, good nutrition and exercise education programs are recommended.

• Journal of Nutrition and Health
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• 제42권3호
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• pp.221-233
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• 2009

Korea's aging population has been remarkably increased. They want to have not only extension of life expectancy but also improving quality of life. To maintain the quality of life, it is essential to have good nutrition. However, nutritional status of elderly in Korea has problems qualitatively and quantitatively. Risk factors for poor nutrition are advanced age, woman, living alone and low economic status. Another risk factor in rural area is season because seasonal changes can affect food intake of elderly. Thus this study surveyed the health status and dietary intakes of elderly by season in rural area. In this study, the elderly were grouped as group 1 {elderly who have one risk factor for chronic diseases (obesity, hypertension, dyslipidemia, diabetes)} and group 2 (elderly who have more than 2 risk factors). Can-Pro 3.0 was used for dietary data analysis and SPSS 12.0 program was used for statistical analysis. Obesity had the highest percentage 62%, followed by hypertension 59.5%, dyslipidemia 21.5% and diabetes 11.6%. Obesity, hypertension, and dyslipidemia were high in winter and WHR, diabetes and anemia were high in summer. Mean intakes of energy and nutrients were less than RI. Nutrients which were changed most by season were vitamin A and Vitamin C. Intakes of calcium and folic acid were less than recommended in summer. The ratio of CPF for carbohydrate was higher and fat was lower than recommended. In conclusion, the nutrient intake of Group 2 was better in quality but Group 1 was better in quantity. Nutrient intakes were poor in summer. In rural area, more careful nutritional assesment and management are needed for aged population, especially in summer.

• 동아시아식생활학회지
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• 제19권6호
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• pp.869-881
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• 2009

The purpose of this study was to investigate the food habits, dietary intakes and GTTs (glucose tolerance tests) of female college students according to BMI in the Kyunggido area. Questionnaire surveys, 24 hr dietary recalls, and GTTs were conducted with 108 students (36 under-weight students, 42 normal weight students, and 30 over-weight students). The results were as follows: The under wt. and over wt. groups had lower frequencies of eating breakfast but higher frequencies of eating lunch than the normal wt. group. The ratio of students having dinner everyday was low in the order of under wt. > normal wt. > over wt.. The over wt. group skipped breakfast mainly due to lack of time and the need to get to school, and the under wt. group had a high ratio (48.1%) of lunch skipper as a result of having brunch. The over wt. subjects had poor habits of eating fast and overeating, but the under wt. students ate their meals slowly. The under wt. group had a high ratio of students who ate snacks and fast-food. All subjects wanted to immediately improve their poor habit of overeating. Plant oil, animal Fe, and vitamin E intakes were lower in the under wt. group than in the other groups. For the GTT, the over wt. students had significantly lower blood glucose levels after 30 min. than the other groups. BMI was negatively correlated with blood glucose level after 30 min, but positively correlated with crude fiber, ash, Ca, plant Ca, P, animal Fe, Na, K, $\beta$-carotene, vitamin $B_6$, niacin, and vitamin E.

• 한국식품영양과학회지
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• 제9권1호
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• pp.1-14
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• 1980

The purpose of this study was to assess dietary intake and food habits of low-income person aged 60 years or eldary. The hundred fifty persons from the suburbs of Jeonju were surveyed between August 1 to 20,1979. Results were as follows: Family environment Approximately 90% of elderly persons surved, lived with their children and grand-children: 5.2% together as a couple; and 4.4%, widowed, lived alone. Nearly 40% of the households has a average monthly incomes of W40,000 to W100,000. Average food expediture accounted for 50 to 70% of total monthly income, thus indicating that the subject families belonged to the lowest socioeconomic level. As pocket money, 74.5% of male subjects had more than W5,100 per month. whereas, 51.4% of female had less than W5,000. Anthropometric measurements: 97.6% of subjects has heights greater than 90% of the Korean standard for their age group, whereas 45.2% of the subjects were 60 to 89% of standard weight. 88% had an arm circumferences only 60 to 89% of the standard. Nutrient intake: Intake of the majority of nutrients was below the recommended allowances, especially for energy, protein, calcium and iron. The energy input ratio of carbohydrate: protein: fat was 73.1-80.9. 13.3-15.8: 4.5-11.5, showing very heavy dependence on carbohydrates for energy needs. The contribution of animal protein was 24.3% of total protein intake, indicating an improper protein diet. Other factors influenced on the nutrient intake: Poor teeth, illness, and poor appetite were always associated with inadequate intake of energy and nutrients. The larger the family size, the lesser intake of nutrients was observed among those elderly.

• Nutritional Sciences
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• 제5권1호
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• pp.26-33
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• 2002

This study was conducted to provide insight into the management and care of the elderly in nursing homes. Eighty-six elderly subjects over 65 years old (38 male, 48 female) in 3 non-fee-paying nursing homes, located in Daejeon and Chungchong areas, were studied. Subjects'dietary intakes by estimated food intake records, and self-perceived health conditions, were studied using questionnaires from July 21 to August 1, 1997. Twenty-one % of the male subjects and 42% of the female subjects were over 80 years. Their predominant past occupation was farming. While 8.3% of the female and no male residents showed a BMI (Body Mass Index) of 27 and above, about 30% of the subjects were underweight and in poor health status in seeing, joint pains, lumbago and shoulder pains. Regarding overall health status, 72.1% of the subjects considered them to be in poor health, and female and male subjects suffered more difficulties from cloudy eyes, joint pains and lumbago and shoulder pains than any other. Neuralgia was the predominant chronic complaint and followed by hypertension in both sexes. Overall, female subjects felt worse off than the male subjects in terms of their health status, that can be attributed to higher average age of the female subjects compared to the male subjects. The elderly were eating a very low fat (about 15 g : 6% of total calorie) diet with low vitamin A and E. Intakes of calories, protein and iron slightly exceeded RDA. The phosphorus intake was more than double the RDA although calcium intake was close to the RDA. From these results, it seems important to doubling the fat intake of the elderly residents in the form of vegetable fat with the object of raising of vitamin E, antioxidant vitamin, and essential fatty acids for the elderly. It is also recommended that the elderly residents should be given adequate calcium and exercise for bone health.

• 한국자원식물학회지
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• 제24권5호
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• pp.642-649
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• 2011

본 연구는 경기도 안성, 포천지역 인삼재배지의 이화학적 성질 및 인삼의 엽 분석을 실시하여 인삼의 생육에 적합한 토양 및 엽중 적정 양분 농도를 설정하고자 수행하였다. 인삼 생근중은 우량포지가 불량포지에 비하여 안성지역이 2-5배, 포천지역이 1.5-2배 차이를 보여 동일 지역내에서도 큰 생육차이를 보이고 있었다. 인삼 생육에 관여하는 토양의 이화학적 성질의 적정 범위는 안성지역에서 공극률(>50%), 전질소(2.0-2.8 g/kg), 유효인산(500-900 mg/kg), 치환성 Ca(2.3-3.5 $cmol_c\;kg^{-1}$)이었으며, 포천지역에서는 액상(13%<), 유효인산(400-650 mg/kg), 치환성 Ca(4.0-4.7 $cmol_c\;kg^{-1}$), 치환성 Mg(<0.8 $cmol_c\;kg^{-1}$), 치환성 K(<0.5 $cmol_c\;kg^{-1}$)로 나타났다. 특히, 안성지역에 있어서는 치환성 염기 성분비(Exch Ca:Mg:K)도 인삼생육에 관여하고 있었는데 우량포지에서 6:2:1, 불량포지에서 4:2:1의 값을 보였다. 엽중 무기양분 함량 적정 범위는 안성지역에서 P(<0.25%), Mg(0.22%<), 포천지역에서 N(1.8%<), P(0.18%<), K(1.5-3.0%)의 값을 보였으며 그 이외의 일부 엽중 무기양분 성분비에서도 적정 범위가 설정되었다.