• 대한지역사회영양학회지
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• 제12권3호
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• pp.284-298
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• 2007

This study was performed by a comparative analysis of nutritional knowledge, dietary attitudes and nutrient intakes of dietitians and non-dietitians. The subjects of this study were 103 dietitians and 166 non-dietitians working in the Chonnam area. The general characteristics, nutrition knowledge and dietary attitudes of the subjects were surveyed using a self-administered questionnaire, and nutrient intakes were examined using 24-hour recall method. The results were as follows: Dietitian group ($15.17{\pm}3.88$) scored significantly (p<0.0001) higher than non-dietitian group ($13.34{\pm}3.31$) in nutrition knowledge. Dietitian group ($69.58{\pm}10.67$) scored significantly higher on dietary attitudes than the non-dietitian group ($63.97{\pm}11.18$). The correlation between nutritional knowledge scores and dietary attitudes scores were statistically significance on job, age ($20{\sim}39$), education level (below university), marital status and work experience ($2{\sim}5$, above 10). The dietitian group was significantly higher than the non-dietitians in body weight and BMI of anthropometric data. The prevalence of obesity was 5.8% from the dietitian group and 6.6% from the non-dietitian group when judged by BMI and therefore obesity rate was significaltly (p<0.001) different between the two groups. In case of the dietitian group, the average intake of vitamin A, vitamin $B_1$, vitamin $B_6$, niacin, vitamin E, phosphorous, zinc were above the Korean RDA whereas the average intake of vitamin C, calcium, iron, folic acid were below the Korean RDA. The average intake of most nutrients, except vitamin $B_1$, vitamin $B_6$, phosphorus, were below the Korean RDA in the non-dietitian group. Therefore the non-dietitian group needs nutrition education in order to improve their nutritional status.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2000년도 창립총회 및 춘계학술발표회
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• pp.52-55
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• 2000

The effects of environmental conditions, initial dissolved oxygen concentrations, pH, and the presence of electron carrier vitamin B$_{12}$ , on the reduction rate of TNT by Fe$^{0}$ was Quantitatively analyzed using a batch reactor. In all experiments, TNT reduction was best described with a first order reaction and the reduction rate decreased with the increase in the initial DO concentration. However, the specific reaction rate did not decrease linearly with the increase in the initial DO concentration. In the presence of HEPES buffer 0.2 and 2.0 mM(pH 5.7$\pm$0.2), the specific reaction rate increased more than 5.8 times, which showed reduction rate is rather significantly influenced by the pH of the solution. To test the possibility of reaction rate enhancement, well-known electron carrier(or mediator), vitamin B$_{12}$ has augmented besides Fe$^{0}$ . In the presence of 8.0 $\mu\textrm{g}$/L of vitamin B$_{12}$ , the specific reaction rate increased as much as 14.6 times. The results indicate that the addition of trace amount of vitamin B$_{12}$ can be a promising rate controlling option for the removal of organics using a Fe$^{0}$ filled permeable reactive barrier.

• 한국토양환경학회지
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• 제5권2호
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• pp.87-97
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• 2000

환원상태의 0가 금속 철($Fe^0$)에 의한 TNT의 환원반응율에 환경조건이 미치는 영향을 정량하기 위하여 회분식 반응조내의 초기 용존산소, HEPES완충액 및 전자전달체 Vitamin $B_{12}$의 농도를 변화하며 비반응상수를 측정하였다. 0가 금속 철에 의한 TNT의 환원은 모든 경우에서 유사 1차반응으로 측정되었으며, TNT의 환원시, 용액내 초기 용존산소의 농도가 높을수록 반응속도는 감소하였다. 그러나, 비반응상수는 초기용존산소의 농도에 선형적으로 비례하지 않았으며 용존산소 농도가 높아질수록 반응속도의 감소율은 감소하였다. HEPES 완충액을 사용하여 TNT환원의 비반응상수를 측정한 결과, HEPES 2.0mM용액을 사용하여 중성 부근의 pH를 유지하였을 경우 비반응속도가 5.8배 이상 증가하여 반응율은 수용액의 pH에 영향을 받는 것으로 확인되었다. 반응 속도의 증진을 위하여 전자 전달체(electron carrier or mediator) vitamin $B_{12}$를 첨가한 실험결과, vitamin $B_{12}$의 농도 8.0 $mu\textrm{g}$/L 에서 14.6배의 비반응상수의 증가가 관측되었다. 따라서, 0가 금속 철로 충진된 반응벽체를 사용하여 유기물을 제거하는 공법에서 Vitamin $B_{12}$의 첨가는 매우 유용한 처리효율 증진방안이 될 수 있다.

• 약학회지
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• 제47권6호
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• pp.432-437
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• 2003

It has been known that quercetin, a bioflavonoid widely distributed in fruits and vegetables as dietary-derived flavonoid and exert significant multiple biological effects such as antioxidant and anti-inflammatory, anti-tumor effects. In addition, it has been shown to have a chemoprotective role in cancer, though complex effects on signal transduction involved in cell proliferation and angiogenesis. The present study investigated whether quercetin can enhance antioxidant enzyme activity (glutathione peroxidase: GPx, superoxide dismutase: SOD, catalase: CAT) and regulate the reactive oxygen species (ROS) generation in the presence of vitamin E, L-ascorbic acid, reduced glutathione (GSH) on B16F10 murine melanoma cells. After 48h treatment of cells with quercetin in the presence of vitamin E, L-ascorbic acid, GSH, we measured the cytotoxicities by MTT assay. The cells exhibited a dose-dependent inhibition in their proliferation in the presence of vitamin E, L-ascorbic acid, GSH respectively. We also investigated the effects of antioxidant enzyme activity and ROS generation. The antioxidant enzyme activity of quercetin in the presence of vitamin E was stronger than GSH, L-ascorbic acid, the same treatments decreased ROS generation in B16F10 murine melanoma cells. Taken together, these result demonstrate that the antioxidant effect of quercetin can enhanced in the presence of vitamin E and it might plays an important role in anti-oxidative effects.

• Journal of Nutrition and Health
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• 제20권4호
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• pp.258-271
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• 1987

This survey of 527 children, aged 4 to 6 years, focused on family and dietary environment, nutritional status and personality. It was conducted from June to October, 1986. The results showed that 68.0%(breakfast)and 55.4% (evening meal ) of the subjects indicated they had meals with the family everyday. Analysis of the nutritional status children showed all nutrient intake except protein an diron was insufficient compared with RDA. Carbohydrate provided 58.3% of total calorie intake ; protein accounted for 15.7% . fat provided 26.0%. There was a positive relation between income and nutrient intake. Children with employed mothers showed lower nutrient intake than children with unemployed mothers. Food attitude was positively related to nutrient intake, nutrient intake of children with good eating behavior was higher than that of children had poor eating behavior . Activity level had a significant correlation with intake of calories, fat, vitamin A, vitamin B$_1$, and Vitamin B$_2$. Mood was correlated with intake of protein, iron, vitamin A, vitamin B$_2$ and vitamin C.

• Journal of Nutrition and Health
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• 제6권2호
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• pp.35-43
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• 1973

This study is concerned with the nutritional status of the packed lunch boxes which are brought by the junior high school students in Capital City of Seoul. Four hundred and eights students of the 8 school districts in Seoul had been randomly selected as subjects. The contained nutrients in the packed lunch were analysed by the Food Composition Table. To observe the influence of home economical status and mother's educational level on the nutrient concents of packed lunches, the chosen subjects were classified into three large groupings, which are upper, middle and low classes respectively. In addition, comparison between the Recommended Daily Allowanced for Korean people-13 to 15 age group-and the contained nutrients in the lunch boxed had been conducted. T-test was applied to clarify the significance of the differences between each group both economical and educational level. 1. The averaged rations between the Recommended Daily Allowances and the contained nutrients in the lunches stand: Calorie 59.7% (566 Cal.) protein 53.1% (18g), animal protein 48.6% (5g), fat 39.8% (5g), calcium 371.% (0.1g), ferret 66.4% (2.9g) Vitamin A 642 1.U. (31.3%), Vitamin $B_1$ 70.2% (0.3mg), Vitamin $B_2$ 41.4% (0.2g), Niacin 77.0%(4mg), Vitamin C 51.9% (13mg). All of the nctrients fall far behind the Recommended Daily, Allowances for 13 to 15 age group. 2. Home economical status brings influence on the kinds of foods which could been. Protein, animal protein, fat, Vitamin $B_2$, Vitamin C showed significance of diffierences between the upper and middle classes. Between the middle and low classes, Protein, animal protein, fat, calcium and Vitamin C showed significance of difference. And finally, between the upper and low classes, protein, fat, calcium, ferret, Vitamin $B_2$ and Vitamin C showed a great significance. 3. Regardless to the living conditions of the subject students, all the nutrients of the lunches packed by the mothers in the entire educational levels did not reach the Recommended Daily Allowances. Protein, animal protein, fat, ferret, Vitamin A, and Niacin showed the significance of the differences between the upper and middle classes. On the other hand, calorie, animal protein, fat, Vitamin A and Vitamin C showed the significance between the middle and low classes. Between the upper and the low classes, protein, animal protein, fat, and ferret showed significance. 4. The mairdish-ice of the lunch boxes supplied calorie, protein, Vitamin $B_1$, Vitamin $B_2$ and Niacin which stand at 83.8%, 56.1%, 52.5%, and 54.8% respectivly when compared with the whole nutritional contents. 5. The side-dishes of the packed lunch lack in variety of cooking methods. One interesting fact is that entire subject students are very favorable to the food cooked with every kind of grains.

• 한국조리학회지
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• 제17권4호
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• pp.251-262
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• 2011

매생이 소스 개발을 위한 선호도를 조사하였고, 세 종류의 매생이소스를 개발하였으며, 개발된 매생이소스법 선호도를 비교분석함으로써 건강기능성 식품으로서의 매생이소스 개발과 향후 매생이 가공 식품을 통한 지역 경제 활성화에 목적이 있다. 매생이 성분분석은 2009년 7월에 전남 강진군에서 구입한 매생이틀 재료로 하였고, 매생이 소스 개발을 위한 선호도 조사 결과를 바탕으로 세 종류의 매생이 소스 즉 매생이 플레인 요거트 소스, 매생이 홍초 소스, 매생이 밀쌈 소스를 개발하였다. 개발된 매생이소스별 선호도를 비교분석함으로써 완성도를 높이고자 하였다 개발된 시제품은 광주 소재 조리과학과 학생 42명을 대상으로 2009년 11윌 9일부터 11윌 16일 까지 설문조사를 실시하였다. 통계기법은 빈도분석을 이용하였다. 매생이 성분분석 결과 무기질로는 K 227.98mg/100g, Ca 58.32mg/100g, Fe 7.8mg/100g 로 나타났고, 바타민은 Vitamin A(${\mu}gRE$/100g) No Detection Vitamin $B_1$ 0..0837mg/100g Vitamin $B_2$ 0.0641 mg/100g Vitamin B6 0.0261 mg/100g Vitamin C 19.9877 mg/100g Vitamin E 0.3607 mgaTE/100g Vitamin K 7.2079 ${\mu}g$/100g Niacin 1.5057 mgaNE/100g으로 나타났다. 설문조사 결과를 통한 매생이 플레인 요거트 소스, 매생이 홍초 소스 매생이 밀쌍 소스 시제품 제작 및 조리법을 개발하였다.

• Journal of Nutrition and Health
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• 제54권2호
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• pp.211-223
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• 2021

본 연구는 한국인이 주로 상용하는 수산물을 이용한 다소비 메뉴 39종을 선정하고, 이를 기준 레시피로 조리한 후 이들에 대한 비타민 B₉ (엽산)과 B₁₂ (코발라민류) 함량을 분석하였다. 국가식품영양성분 데이터베이스 자료로 활용하기 위한 데이터의 신뢰도 확보를 위해 비타민 B₉(trienzyme-L. casei법)과 B₁₂ (immunoaffinity-HPLC/PDA) 분석법의 유효성을 검증하였으며 분석품질관리를 수행하였다. 각 성분 분석법의 정확성, 정밀성, 특이성, 상관성, 검출한계 및 정량 한계를 분석한결과 모두 AOAC 가이드라인 수용 기준에 충족되는 결과를 얻었으며, 분석품질관리도표를 전 분석 기간 동안 작성하여 확보된 분석 데이터의 신뢰도를 확보하였다. 상용 수산물 메뉴의 비타민 B₉과 B₁₂ 함량을 분석한 결과 각각 1.83-523.08 ㎍/100 g과 0.11-38.30 ㎍/100 g의 범위로 사용된 재료와 조리법의 특성에 따라 다양하게 나타났다. 비타민 B₉ 함량은 구이류의 김구이 (523.08 ㎍/100 g)가 가장 높은 함량을 보였으며, 볶음류에서 건새우볶음 (128.34 ㎍/100 g)과 잔멸치볶음 (121.53 ㎍/100 g)이 높은 함량을 나타내었다. 비타민 B₁₂함량은 찜·조림류의 꼬막찜 (38.30 ㎍/100 g)이 가장 높은 함량을 보였으며, 구이류의 김구이 (29.79 ㎍/100 g)와 볶음류의 멸치마늘종볶음 (18.99 ㎍/100 g)으로 높은 함량을 나타내었다. 유사 재료의 조리법에 따른 비타민 B₉과 B₁₂ 함량을 비교하면 비타민 B₉의 경우 물 사용량이 많은 국·탕·찌개류는 다른 시료군 (볶음, 찜, 조림, 구이, 튀김 및 무침)에 비하여 비교적 낮은 함량을 나타내어 수산물과 다양한 채소류를 함께 볶는 볶음 메뉴가 비타민 B₉ 섭취에 도움을 줄 것으로 보인다. 비타민 B₁₂의 경우 식물성 식품에는 발견되지 않고 주로 동물성 식품에만 존재하는데 본 연구 결과 김 및 미역과 같은 해조류 메뉴는 채식주의자들에게 비타민 B₁₂의 좋은 급원메뉴가 될 수 있을 것으로 보여진다. 본 연구는 분석법 검증 및 품질관리를 통하여 분석 신뢰도를 확보하였으며 이와 함께 제공된 한국 상용수산물 메뉴의 비타민 B₉과 B₁₂ 함량데이터는 한국인의 보건영양 정책 수립을 위한 국가식품영양성분 데이터베이스 자료로 활용될 수 있을 것으로 사료된다.

• Journal of Applied Biological Chemistry
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• 제53권1호
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• pp.37-43
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• 2010

아밀로오스 함량이 서로 다른 품종의 현미를 이용하여 가공 처리 즉, frying 처리와 parboiling 처리를 하여 여러 화학적 특성을 조사하였다. 페놀성 물질 함량은 품종에 따른 뚜렷한 경향은 나타나지 않았으며, 일품벼의 실험 결과를 볼 때 frying 처리 후 현미가 백미보다 높은 페놀성 물질 함량을 나타내었다. Blue value는 아밀로오스 함량에 따라 비례적으로 증가하는 경향을 보임으로서 고도의 상관관계에 있다고 판단된다. 향기 성분은 Hydrocarbons류와 Esters류가 각각 3종, Alcohols류와 Acetals류가 각각 2종, Aldehydes류가 5종, Acids류가 6종이 동정되었다. 그 중에서 Aldehydes류의 Benzaldehyde, Phenylmethanal이 가장 높은 함량을 나타내었다. Vitamin B군은 현미 무처리구보다는 가열처리 후 frying 처리구의 vitamin 함량이 전반적으로 감소되었으며, vitamin $B_1$함량은 1.4189~1.6494 mg에서 0.3102~0.7097 mg으로 감소되었고, vitamin $B_2$는 아밀로오스 함량이 높을수록 함량이 증가하였고, parboiling 처리구가 무처리구에 비해 높게 나타났다. Vitamin $B_6$는 아밀로오스 함량이 높을수록 함량이 감소하였다. Niacin은 함량이 상대적으로 다른 vitamin B군에 비해 가장 높은 함량을 보였다. 무기질 함량을 조사한 결과 Mg이 가장 높은 함량을 나타냈으며 대체적으로 아밀로오스함량에 비례하여 증가하는 경향을 보였다. 현미를 품종과 처리 조건에 따라 달리하여 frying 처리한 전자 공여능 결과 백미보다는 현미상태에서 대체적으로 높은 전자 공여능 값을 보여주었고, 무처리구보다 유탕 처리 후 좀더 높은 활성을 나타내었다.

• The Plant Pathology Journal
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• 제32권5호
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• pp.469-480
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• 2016

Bacterial wilt and grey mould in tomato plants are economically destructive bacterial and fungal diseases caused by Ralstonia solanacearum and Botrytis cinerea, respectively. Various approaches including chemical and biological controls have been attempted to arrest the tomato diseases so far. In this study, in vitro growths of bacterial R. solanacearum and fungal B. cinerea were evaluated using four different vitamins including thiamine (vitamin B1), niacin (vitamin B3), pyridoxine (vitamin B6), and menadione (vitamin K3). In planta efficacies of the four vitamin treatments on tomato protection against both diseases were also demonstrated. All four vitamins showed different in vitro antibacterial activities against R. solanacearum in dose-dependent manners. However, treatment with 2 mM thiamine was only effective in reducing bacterial wilt of detached tomato leaves without phytotoxicity under lower disease pressure ($10^6$ colony-forming unit [cfu]/ml). Treatment with the vitamins also differentially reduced in vitro conidial germination and mycelial growth of B. cinerea . The four vitamins slightly reduced the conidial germination, and thiamine, pyridoxine and menadione inhibited the mycelial growth of B. cinerea. Menadione began to drastically suppress the conidial germination and mycelial growth by 5 and 0.5 mM, respectively. Grey mould symptoms on the inoculated tomato leaves were significantly reduced by pyridoxine and menadione pretreatments one day prior to the fungal challenge inoculation. These findings suggest that disease-specific vitamin treatment will be integrated for eco-friendly management of tomato bacterial wilt and grey mould.