• Title/Summary/Keyword: 감자총

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Effect of Dietary Factors on Bone Mineral Density in Korean College Women (한국 여대생의 골밀도에 영향을 미치는 식이 요인 분석)

  • 백희영;송윤주
    • Journal of Nutrition and Health
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    • v.35 no.4
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    • pp.464-472
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    • 2002
  • This study was conducted to investigate dietary and other factors affecting bone mineral density in young Korean collage women. Thirty subjects were recruited; the mean age was 22.1 years and the mean age at menarche was 12.6 years. Bone mineral density (BMD) was measured in the spine (LS), femoral neck (FN), ward's triangle (WT), and femoral trochanter (FT) by Dual Energy X-ray Absorptiometry (DEXA), and physical activity was assessed by a questionnaire. Dietary intake data were obtained 8 times by using a 24 hour recall method to evaluate the subjects' usual diet. Bone mineral densities of lumbar spine, femoral neck, ward's triangle and femoral trochanter were 1.149 g/$\textrm{cm}^2$, 0.980 g/$\textrm{cm}^2$, 0.936 g/$\textrm{cm}^2$ and 0.759 g/$\textrm{cm}^2$ respectively. The met energy intake of subjects was 1,790 kcal, and calcium and iron intakes were found to be inadequate compared to the Korean RDA. The BMD of the lumbar spine was significantly and positively related to the BMI and intake of vitamin C, carbohydrate, potatoes, fruits and plant food. The BMD of the femur (FN, WT, FT) was positively related to the BMI, to carbohydrate and fruit intake, and to the percentage of plant food in total food intake. Multiple recession analysis showed that fruit intake was significantly related to the BMD of the LS. The subjects'ages and fruit intakes were significantly related to the BMD of the femur (FN, WT, FT). These results indicate that higher fruit intakes may have a beneficial effect on bone mineral density.

Antioxidant Activity and Safety Evaluation of Juice Containing Protaetia brevitarsis (흰점박이꽃무지(Protaetia brevitarsis) 함유 음료의 in vitro 항산화 관련 생리활성효능 및 안전성 검증)

  • Park, Jae-Hee;Kim, So-Yun;Kang, Min-Gu;Yoon, Min-Soo;Lee, Yang-Il;Park, Eun-Ju
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.41 no.1
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    • pp.41-48
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    • 2012
  • The purpose of this study was to assess the antioxidant activity of vegetable extracts (pumpkin, aloe, and artichoke) containing Protaetia brevitarsis (PB) and the clinical and pathological changes in ICR mice after a single oral administration. The total polyphenol (TP) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging ability, total radical trapping antioxidant potential (TRAP), oxygen radical absorbance activity (ORAC), and single cell gel electrophoresis assay were done to measure their antioxidant activities. The effect of vegetable extracts containing PB in TP and the ORAC value was significantly higher than those without PB. In addition, all extracts had effective $DPPH{\cdot}$ scavenging and $ABTS{\cdot}+$ scavenging activities. The protective effect of vegetable extracts with/without PB on $H_2O_2$-induced DNA damage was found. In a single-dose toxicity study, mortality, body weight, physiological signs, and biochemical analysis were analyzed. Seventy mice were randomly assigned to 7 experimental groups and were administered three vegetable extracts with and without PB (2 g/kg). A full 14 days after administration, no mice mortality was observed in any group. Body weight, physiological signs, and biochemical analysis were never significantly different from those of the control group. Taken together, these findings indicate that vegetable extracts containing PB with antioxidant activities and safety could be applied as medicinal and edible resources in an industrial area.

Characterization of Volatile Components in Eoyuk-jang (어육장의 휘발성 향기 성분 특성)

  • Yoon, Mi-Kyung;Choi, A-Reum;Cho, In-Hee;You, Min-Jung;Kim, Ji-Won;Cho, Mi-Sook;Lee, Jong-Mee;Kim, Young-Suk
    • Korean Journal of Food Science and Technology
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    • v.39 no.4
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    • pp.366-371
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    • 2007
  • The volatile components in Eoyuk-jang, a traditional Korean fermented food, were isolated using solvent extraction, and analyzed by gas chromatography-mass spectrometry (GC-MS). A total of 36 components, including 11 aliphatic hydrocarbons, 4 acids, 2 ketones, 5 phenols, 7 alcohols, 1 pyrazines, 4 pyrones and furanones, and 2 miscellaneous components, were found in Eoyuk-jang; among them, butanoic acid was quantitatively dominant. In addition, the aroma-active compounds were determined by gas chromatography-olfactometry (GC-O) using aroma extract dilution analysis (AEDA). A total of 20 aroma-active compounds were detected by GC-O. Butanoic acid (rancid) and methional (cooked potato-like) were the most potent aroma-active compounds with the highest FD factors $(Log_3$, FD), followed by 2-methyl-2-butanol (soysauce-like), 3-hydroxy-2-butanone (buttery), and 2-furanmethanol (burnt sugar-like).

초등학생의 간식 구매 빈도 및 관련 식생태적 요인 분석연구

  • 강석아;이정원;구재옥
    • Proceedings of the KSCN Conference
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    • 2003.11a
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    • pp.1059-1059
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    • 2003
  • 최근 초등학생들은 간식은 물론 끼니를 위해서 스스로 식품이나 음식을 선택하고 구매하는 식생활 관리의 주체자가 되고 있다. 본 연구는 초등학생의 간식구매실태와 이에 영향을 미치는 식생태적 요인을 파악하고자, 서울과 충청남도의 대도시, 소도시 및 농촌의 4개 지역의 초등학생 4, 5, 6학년 총 431명(남 223, 여 208)과 그 학부모를 대상으로 간식섭취, PC와 TV 이용도, 학부모의 영양지식과 식태도, 간식구매빈도 등을 설문지 조사를 하였다. 조사대상 초등학생의 평균 신장과 체중은 교육부의 학생 신체검사 결과보다 약간 높거나 비슷하였으나, 조사대상의 30.6%가 저체중이고 10.8%가 비만이었다. 가정의 월 소득은 101-200만원이 가장 많았고(56.3%), 아버지는 대졸 이상이 59.7%, 어머니는 고졸 이상이 55.9%로 가장 많았으며, 어머니는 44.1%가 직업을 갖고 있었다. 학생의 월 용돈은 2,001-5,000원이 31.0%로 가장 많았으며 간식 비는 1일에 500원 미만이 46.0%로 가장 많았다. 간식섭취 빈도는 1일에 1번 섭취가 51.5%로 가장 많았고 간식 구매 시 고려사항은 맛, 가격, 영양가와 유통기한의 순 이었다. 조사대상의 46.9%가 PC통신 또는 인터넷을 사용하였고 사용시간은 1시간 미만이 53.8%로 가장 많았으며, 하루 평균 TV 시청시간은 2~4시간미만이 46.4%로 가장 많았다. 학부모의 평균 영양지식 점수는 13개 문항 중 8.16 $\pm$ 2.16으로서 평균 62.8%의 정답 율을 보였으며, 식 태도 점수는 총 50점 만점에 전체 평균이 43.22$\pm$4.04로서 비교적 양호하였다. 식품별 구매빈도를 보면 1주에 1회 이상으로 나타난 것은 우유, 과자류, 빙과류, 라면, 주스 및 껌의 순 이었고, 햄버거, 피자, 호떡은 한 달에 1회 또는 그 이하로서 가장 낮았다. 과자, 라면, 빙과류의 구매빈도는 가정수입과 아버지와 어머니의 교육수준과 음의 상관 관계를, 학생의 월 용돈, TV 시청시간 및 간식섭취 빈도가 높을수록 와는 양의 상관관계를 보였다. 라면과 탄산음료는 부모의 영양지식이나 식 태도와 음의 상관관계를 나타냈고, 햄버거 구매빈도는 가정수입과 아버지와 어머니의 교육수준이 높을수록 잦았다. 학생의 간식빈도가 높을수록 우유섭취빈도는 낮았으며, 과자, 빙과, 사탕, 닭 꼬치, 감자튀김, 돈까스, 튀김의 구매빈도가 증가하여 간식내용이 영양적으로 양호하지 않음을 알 수 있다. 또한 TV 시청시간이 길수록 간식빈도와 유사한 구매 양상을 나타냈다. PC이용시간이 길수록 과자와 빵의 구매빈도가 낮아지고 껌의 구매빈도가 높아져 흥미롭다. 결론적으로 조사대상 초등학생은 간식 구매시 영양가보다는 맛을 중요시하며, 우유를 제외하면 주로 탄수화물과 당류식품의 구매빈도가 높다. 또한 가정 소득, 부모 교육수준과 영양지식, TV시청시간, 학생의 간식 비와 간식빈도 등 환경요인들이 식품구매에 영향을 주었다. 따라서 영양사를 중심으로 간식 선택의 중요성과 식품 구매 원칙에 대한 체계적인 영양교육을 학생과 아울러 학부모에게도 실시하여 초등학생의 바른 간식 구매능력을 향상시켜야 할 것이다.

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Effects of Nutrition Education on Improvement of Blood Glucose in Type 2 Diabetic Patients with Low Income (저소득층 당뇨병 환자의 영양교육을 통한 혈당개선 효과)

  • Lim, Eun-Jin;Kim, Mi Jeong;Han, Ji-Sook
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.43 no.1
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    • pp.141-150
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    • 2014
  • This study was carried out to investigate the effects of nutrition education on blood glucose in type 2 diabetic patients with low income. There were 50 (27 male and 23 female) study subjects with type 2 diabetes under national medical support, and the monthly income in most of them was less than 500,000 won. Anthropometric measurement, biochemical blood indices, food intake, dietary habits, and nutrition knowledge of the subjects were investigated before nutrition education. Nutrition education was conducted 6 times within 12 weeks. After nutrition education, the glycosylated hemoglobin was significantly decreased (male: $8.4{\pm}1.6%$ to $8.0{\pm}1.7%$, female: $8.3{\pm}1.6%$ to $8.0{\pm}1.3%$) and the total cholesterol was also significantly decreased in both groups. The group of female resulted in a significant decrease in fasting blood glucose ($169.7{\pm}28.2$ mg/dL to $152.8{\pm}22.0$ mg/dL) and triglyceride ($177.8{\pm}56.3$ mg/dL to $162.3{\pm}36.1$ mg/dL), but the group of male did not show a significant decrease in fasting blood glucose and triglyceride. Nutritional knowledge and dietary habit scores of the subjects were significantly improved after nutrition education. The results demonstrate that nutrition education for type 2 diabetic patients with low income are effective in improving their blood glucose.

Comparison of Nutritional Status of the Daejeon Metropolitan Citizens by Frequency of Eating Out (외식 빈도에 따른 대전시민의 영양상태 비교)

  • Suh, Yoon-Suk;Kang, Ji-Hyun;Kim, Han-Sook;Chung, Young-Jin
    • Journal of Nutrition and Health
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    • v.43 no.2
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    • pp.171-180
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    • 2010
  • This study aims at investigating the health and nutritional status of the adults according to frequency of eating out. One day food intake data were collected by 24 hr recall dietary survey and body size, blood pressure and some blood lipids and other constituents were measured on 137 Daejeon metropolitan citizens 20 yrs old and above who visited Chungnam National University Hospital for physical examination during the period of December 6, to December 15, 2008. The frequency of eating out were categorized into four levels: less than once a week, once a week, 2-3 times a week, 4 times a week and above. Body mass Index, waist circumference, blood pressure, blood lipid, blood glucose, GPT and GOT did not showed any significant difference according to the frequency of eating out of the subjects. Though, systolic blood pressures and serum levels of total cholesterol and LDL-cholesterol showed a little tendency to be high in the subjects eating out 2-3 times a week. In the contrary, serum triglyceride level tended to be low in the same group. The subjects eating out 4 times a week and over took more total protein, animal protein, animal fat, phosphorus and vitamin $B_2$ than any other group. Also protein energy ratio was the highest in the group eating out 4 times a week and above and they took more animal food group, other food group, beverages teas and alcohols than other groups eating out. These results showed that higher frequency of eating out leads to higher intake of protein, fat, phosphorus, animal food groups and other food groups (oils, beverages, seasonings) and to lower intake of vitamin C and plant food groups. It, thus, suggested that the strategy for restaurant business is required to provide the menu substituted animal food by more plant food.

독창적 아이디어에서 창조적 혁신까지 : 인공씨감자 기술혁신 성공사례 분석

  • 현재호
    • Proceedings of the Technology Innovation Conference
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    • 1997.07a
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    • pp.222-223
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    • 1997
  • By analyzing the successful innovation case of potato microtuber mass production technology, a representative case of technology-push type creative innovation in an imitation oriented research culture, this paper attempts to figure out conceptual model of creative innovation that is initiated by the public laboratories in catching-up country, Stages of creative innovation can be divided into the internal R&D stage and the external commercialization stage. Success of the internal R&D stage depended on autonomy to secure creative research idea and commitment of individual researchers. Psychological pressure evoked from sportlights of mass media and commitment of sponsor increased the intensity of research efforts of the researcher Recognition of research problem and its significance was intensified by site visits of agricultural fields, and the recognized higher impacts of expected research results and knowledge creation achieved were a fundamental source of self-motivation. In the stage of commercialization stage, various legal, socio-economic, and psychological barriers were confronted. In a catching-up country lacking of experiences of creative innovation, creative innovation process can be regarded as a barrier elimination and cultural revolution process. Among the barriers, psychological refusal of farmers to corn-sized potato seeds was critical, which finally enforced to further researches to enlarge the size of potato seeds. In addition, the researcher has concentrated his research efforts in one specialized research area by getting a series of similar research project funds rather than diversification. It was lucky for him to have a chance to carry out a series of similar researches in one research area during the last 10 years. In getting research funds from government and private companies continuously in one research area, both internal and external promoters played significant roles.

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Seasonal Food Intake Status of the Long-lived Elderly People in Kyungpook Sung-Ju (경북 성주지역 장수노인의 계절별 식품섭취 상태)

  • 백지원;구보경;김규종;이성국;이혜성;이연경
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.29 no.4
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    • pp.691-700
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    • 2000
  • The purpose of this study was to estimate food intakes of the long-lived elderly and to obtain the data for establishing dietary guidelines that may be recommended for the general population for the sake of longvity. The subjects of the study were 224 elderly people of age over 85 years living in Kyungpook Sung-Ju area who have no problem in daily living. The food consumption survey was carried out seasonally by the repeated 24-hr recall method for one year. The subject group for this study was composed of 58 males and 166 females, the average age being 87 years old. Food intakes of the winter were more than any other seasons. The mean daily total food intake per capita was 594.4g, 513.5 g (86.4%) from plant foods and 79.3 g(13.3%) from animal foods. The sequence of high intakes of food groups were cereals, vegetables, fruits, fishes, legumes and meats. Boiled white rice, beef soup, soybean paste soup, soybean paste stew, broiled yellow croaker, kimchi, ra myon and broiled noodles were consumed most frequently. In conclusion, the subjects consumed much more plants foods than animal foods and consumed more natural and seasonal foods than processed foods and also showed food habits of eating small meals. Dietary habits of eating small meals containing abundant amount of fresh plant foods might partially contribute to the longevity of the subjects.

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Effects of lymphocyte DNA damage levels in Korean plant food groups and Korean diet regarding to glutathione S-transferase M1 and T1 polymorphisms (건강한 성인의 glutathione S-transferase M1과 T1 유전자 다형성에 따른 한식에서의 식물성 식품군과 한식의 DNA 손상 감소 효과)

  • Kim, Hyun-A;Lee, Min-Young;Kang, Myung-Hee
    • Journal of Nutrition and Health
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    • v.50 no.1
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    • pp.10-24
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    • 2017
  • Purpose: GST (glutathione S-transferase) M1 and T1 gene polymorphisms are known to affect antioxidant levels. This study was carried out to evaluate genetic susceptibility by measuring the effect of DNA damage reduction in the Korean diet by vegetable food according to GST gene polymorphisms using the ex vivo method with human lymphocytes. Methods: Vegetable foods in the Korean diet based the results of the KNHANES V-2 (2011) were classified into 10 food groups. A total of 84 foods, which constituted more than 1% of the total intake in each food group, were finally designated as a vegetable food in the Korean diet. The Korean diet applied in this study is the standard one-week meals for Koreans (2,000 Kcal/day) suggested by the 2010 Dietary Reference Intakes for Koreans. Ex vivo DNA damage in human lymphocytes was assessed using comet assay. Results: In the Korean food group, the DNA damage protective effect of GSTM1 and GSTT1 was found to be greater in mutant type and wild-type, respectively. and the DNA damage protective effect according to the combined genotype of GSTM1 and GSTT1 was different depending on the food group. On the other hand, in Korean Diet, the DNA damage protective effect appeared to be larger in GSTM1 wild-type than in mutant type and was found to not be affected by GSTT1 genotype. Conclusion: These results can be used as basic data to demonstrate the superiority of the antioxidant function of Korean dietary patterns and food groups. Furthermore, it may be a starting point to begin research on customized antioxidant nutrition according to individual genes.

The effect of recapitalization on capital structure decision and corporate value in Korean Firms (한국기업의 자본재조정이 자본구조 의사결정과 기업가치에 미치는 영향분석)

  • Kim, Jooyul;Kim, Dongwook;Kim, Byounggon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.4
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    • pp.163-174
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    • 2017
  • This study analyzed how Korean firms' recapitalization affects their capital structure decision and firm value. Recapitalization was categorized into three groups according to the influence of the debt to equity ratio: debt ratio-increasing-recapitalization(capital reduction with refund, cash dividend), debt ratio-unchanging-recapitalization (capital reduction without refund, retirement of repurchased stocks), and debt ratio-decreasing-recapitalization(exercise the rights for convertible bonds, bond with stock warrants, exchangeable bonds and stock options). This article highlights how the relationship between the firms' recapitalization and the capital structure decision driven by the change in debt to equity ratio through the recapitalization should affect the firm value. The whole recapitalization sample used for this analysis comprised 22,814 enterprises listed on the Korea Exchange that were analyzed over the 16-year period from 2000 to 2015. To summarize the results of this Panel Data Analysis, firstly, when a firm executes debt ratio-increasing-recapitalization and debt ratio-decreasing-recapitalization at the period of t-1, the debt to equity ratio, which is increased or decreased, should affect the firm's debt capacity in the same period, then, at the period of t, the firm establishes a leverage policy to readjust the debt to equity ratio the other way around. These adjustments of debt-paying-ability from the leverage policy, including the capital structure decision, finally affect the firm value. Secondly, when a firm implements the debt ratio-unchanging-recapitalization in the period of t-1, the debt to equity ratio, which is neutral, should not affect the firm's capital structure decision. But, the firm value is positively affected by the influence of that recapitalization. Conclusively, we acknowledge a firm which carries out the recapitalization balances its capital structure to the optimal level of leverage and that the capital structure decision positively affects the corporate value.