• 한국환경성돌연변이발암원학회지
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• 제21권2호
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• pp.156-163
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• 2001

Vanadium has been known as environmental polluants resulted from the burning of fossil fuels in nature. It led to toxic responses by prooxidant activity, inducing free radicals and the accumulation in the tissues. Recently, there has been growing interest in an essential nutritional requirement of vandium and especially the treatment of diabetes. But because of its strong toxicity, thease chemicals have narrow safety margin. In order to reduce metal toxicity, and increase absorption and biological activities, metal ions such as selenium and chromium were uptaken in yeast cells. In this study, Vanadium yeast was prepared by uptaking vanadate in yeast cells. Vanadate induced hematological and biochemical changes in the experimental rat blood were inhibited by the treatments of vanadium yeast. Lipid peroxidation and catalase activity were significantly increased in kidney and liver after a single intraperitoneal injection of vanadate to rats. However, these observations were apparently reduced in the vanadium yeast treated group. Vanadium amount in blood, kidney and liver after a single intraperitoneal injection of vanadium yeast was significantly reduced than that of vanadate treated group. In conclusion, vanadium yeast uptaken vanadate in yeast cells could reduce toxic effects of vanadate.

• Asian-Australasian Journal of Animal Sciences
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• 제12권8호
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• pp.1298-1309
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• 1999

The nutritional value of protein varies between feedstuffs. It is possible to feed animals using crystalline amino acids as a sole nitrogen source, but in practice only some limiting amino acids are added to the diet. In order to use feedstuffs efficiently, it is important to determine exact amino acid requirements. Reported values differ widely because the requirements are affected by various factors. In this report, therefore, the factors affecting amino acid requirements are reviewed as follows: 1) availability of dietary amino acids, conversion factors of nitrogen to protein, interaction of amino acids, and strain, sex and age of animals; 2) amino acid requirements for maximum performance and maintenance, usefulness of non-essential amino acids; 3) plasma amino acid concentration as a parameter to determine amino acid requirements; and 4) nitrogen excretion to reduce environmental pollution. These factors should be considered, it is to improve the dietary efficiency, which is to reduce excess nitrogen excretion for environmental pollution.

• 한국생물공학회:학술대회논문집
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• 한국생물공학회 2000년도 추계학술발표대회 및 bio-venture fair
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• pp.350-351
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• 2000

We isolated cellulose-producing bacteria from persimmon vinegar(Korea traditional fermentation food). Some of these strains were selected for cellulose production in agitation culture. On the other hand, it was also found that strains suitable for static culture production were not necessarily suitable for agitation culture. Therefore we estimated the cellulose production of these isolates in static culture. To determine nutritional requirement for the production of bacterial cellulose, several nutrients as carbon source, nitrogen and mineral salt were tested.

• Asian-Australasian Journal of Animal Sciences
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• 제22권2호
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• pp.296-304
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• 2009

The nutritional significance of essential amino acids, as well as non-essential amino acids, is well documented in poultry production with regards to growth performance and protein accretion. However, the function of amino acids in the stress response is still unclear. L-Pipecolic acid, a L-lysine metabolite in the brain, induced a hypnotic and sedative effect acting via the ${\gamma}$- aminobutyric acid receptors. L-Arginine also induced a sedative effect via its metabolism to L-ornithine. In addition, three-carbon nonessential amino acids like L-alanine, L-serine and L-cysteine also induced sedative effects. These facts suggest that the requirement for amino acids in both essential and non-essential types may require reconsideration to add the concept of stress amelioration in the future.

• 대한임상검사과학회지
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• 제36권1호
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• pp.7-12
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• 2004

Trichophyton(T.) tonsurans has been identified for the first time in Korea in 1995 and has been increasing in number of reported in wrestlers, in judo players, and in korean - style wrestlers. Author tried mycological studies with T. tonsurans is isolated in Daegu Korea. The results are as follows: All 16 strains of T. tonsurans tested for nutritional requirement, showed strongly stimulated growth by thiamine, mild to moderate growth on casamino acid agar, poor growth on ammonium nitrates base agar. All 16 strains of T. tonsurans tested showed positive results for hair perforation and urease test. Gross findings of T. tonsurans showed that fine granular surface with light yellow hue or white color and mahogany brown color on the reverse side. Microscopic findings showed that septated hyphae, chlamydoconidia and microcondia. Microconidia were characteristic in their arrangerment and shape : round or oval shaped microconidia laterally to hyphae, some were match - head like terminal swelling.

• Tuberculosis and Respiratory Diseases
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• 제44권1호
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• pp.93-103
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• 1997

연구배경 : 만성 폐쇄성 폐질환 환자에서 영양결핍이 흔히 나타나며, 그 원인기전은 섭취의 부족보다는 호흡근의 열량요구량의 증가에 따른 과신진대사로 인하여 상대적인 결핍이 초래되기 때문으로 알려져 있다. 또한 만성 패쇄성 폐질환에서 영양결핍은 폐기능, 근력 및 운동수행능 등의 생리적 척도와도 유의한 상관관계를 보이며, 나아가서는 예후에도 영향을 미치는 독립적인 인자로 보고된 바 있다. 방법 : 만성 폐쇄성 폐질환 환자와 유사연령의 건강한 대조군에서 영양섭취량을 조사하였고, 신체계측과 혈액검사 등의 영양상태의 지표를 평가하였으며, 영양상태의 평가지표들과 만성 폐쇄성 폐질환의 중요한 폐기능지표인 1초간 노력성 호기량과의 상관성을 조사하였다. 결과 : 1) 대상 환자는 남자 25예였으며, 평균연령은 66.1세였고, 1초간 노력성 호기량의 예측치에 대한 비율은 $42{\pm}14%$였다. 대조군은 폐기능이 정상인 건강한 남자 26예였고, 평균연령은 65.0세였다. 2) 1일 열량섭취량/열량요구량 비율은 환자군에서 $107{\pm}28%$, 대조군에서 $94{\pm}14%$로 환자군에서 높은 경향을 보였다(p=0.06). 3) 환자군과 대조군의 비만도가 92.8% 및 101.6%로(p=0.024), 신체비만지수가 $20.0kg/m^2$ 및 $21.9kg/m^2$ 로(p=0.015), 악력이 29.0kg 및 34.3kg으로(p=0.003), 환자군에서 유의하게 낮았으나, 상완삼두근부위 피부두겹두께, 상완위 근육둘레, 알부민 및 총림프구수는 두 군간에 유의한 차이가 없었다. 환자군에서 저체중군의 비율은 40%(10/25)였고, 대조군에서는 15%(4/26)였다. 4) 비만도, 신체비만지수, 상완삼두근부위 피부두겹두께, 상완위 근육둘레 등은 1초간 노력성 호기량과 유의한 상관성이 있었다. 결론 : 이상의 결과에서 만성 패쇄성 폐질환 환자는 저체중과 말초근력의 저하 등 영양결핍의 소견을 보이나, 그 원인이 섭취량은 부족에 기인하지 않음을 알 수 있었으며, 영양상태 평가의 지표들이 1초간 노력성 호기량과 유의하게 상관됨을 알 수 있었다.

• Journal of Nutrition and Health
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• 제30권2호
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• pp.155-169
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• 1997

This study investigated the effect of weight control by using the commercial appetite suppressant ((-)-hydroxycitric acid(HCA) formula) and nutrition education on 72 obese women over a period of 8 weeks. During the study it conducted nutritional education for women to control their weight, thus analyzed their changes in anthropometric variables. All obese women were randomized in a double-blind method to consume either HCA(HCA group : experimental group) or placebo(placebo group : control group). Two groups were also divided randomly into 2 groups combined with commercial formula diet in 1 meal a day(HD group and PD group : HCA + gormula diet and placebo + formula diet) or not(HO group and conducted with 4 groups(HD, HO, PD, and PO group). All subjects were assigned to consume 800-1500kcal/d balanced diet which is 500kcal less than their usual energy requirement. To evaluate the effect of the weight control program, weight, percent of body fat, waist and hip circumferences, and 5 skinfold thickness were measured up to 5 times in all obese women. The mean weight of the subjects at the onset of the study was 76.5$\pm$10.6kg. The mean body mass index(BMI) wa 30.1$\pm$3.8 and it was in the upper 5 percentile of mean BMI of Korean women. At the end of the program, mean weight loss was 3.5kg after 2 weeks(p<0.001), and 5.8kg after 4 weeks(p<0.001). The waist, hip ratio(WHR) and skinfold thickness measurements of biceps, triceps, subscapular, suprailiac and abdominum showed significant reduction over the entire study period(p<0.05). These outcome were evaluated by effect of nutritional education and counselling. The reduction of % of body fat was significantly different among the 4 groups. Women who administrated HCA demonstrated more change in weight, BMI than the placebo group. There was also significant reduction in body composition (% of body fat, WHR, and skinfold thickness) than the other groups. The HD group which was administrated HCA combined with formula diet was more decreased than other groups. It showed that this program using commercial HCA and formula diet induced not only a change in weight but also a change in body composition. The outcome of this study suggests that HCA has a more effctive change on weight control which is carried out with nutritional education and counselling.

• 한국가정과교육학회지
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• 제19권4호
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• pp.175-185
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• 2007

기술 가정 교과서 내용 중 조리실습 단원에 제시된 일품요리를 대상으로 에너지 함량, 에너지 구성비, 그리고 단백질과 비타민 무기질의 영양적정성을 분석하였다. 9개 출판사에서 발행된 중학교 1학년과 3학년, 그리고 고등학교 1학년 교과서 총 27종을 대상으로 연구를 수행하였다. 일품요리는 학교 현장에서 조리실습 수업시간에 자주, 많이 활용되는 제재임에도 불구하고, 교과서에 제시된 일품요리, 그 중에서도 한국음식 일품요리는 그 수가 매우 적었다. 그리고 게재된 일품요리 가운데 많은 수가 청소년의 하루 에너지필요추정량의 1/3에 미치지 못하는 것으로 나타났고, 에너지 구성비의 경우 유부초밥, 비빕밥, 떡국, 국수장국의 4가지 음식을 제외하고 적정 비율을 갖추지 못한 것으로 확인되었다. 교과서 게재 일품요리의 INQ 분석 결과, 단백질과 인은 1을 초과하는 음식이 많았고, 비타민 $B_1$, $B_2$, $B_6$는 전혀 포함하지 않은 음식이 대부분을 차지하였다. 그리고 한국인의 섭취부족 영양소로 지목되는 칼슘과 철 역시 분석 대상 일품요리 대부분에서 충분하지 못한 것으로 나타났다.

• 대한지역사회영양학회지
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• 제22권4호
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• pp.279-288
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• 2017

Objectives: Recommended Menu (RM) prepared according to the Target Pattern expected to meet the dietary reference intake (DRI) of nutrients. Nutritional adequacy of RM in 'DRI for Koreans 2015' were analyzed to verify whether such expectation was fulfilled. Methods: Dishes in RM are categorized by 5 food groups, and number and types of dishes for main meal and between-meals were analyzed. The energy and 12 nutrients (protein, dietary fiber, Ca, P, Fe, Na, K, vitamin A, thiamin, riboflavin, niacin and vitamin C) contents in 10 RMs were calculated using the food composition table (CD) in 'DRI for Koreans'. Energy, energy contribution ratio, and nutrient contents in 10 RMs for 18 age groups were evaluated based on the 'DRI for Koreans 2015'. Results: Number of dishes per meal were 4.83, and representative table setting consisted of cooked rice + soup (or stew) +3 side dishes. Energy contents of RM were 75~109% of estimated energy requirement (EER). None of the RM met the DRI of all 12 nutrients examined. Calcium was the most insufficient nutrient. Only 1-2 years' RM met the DRI, all the other RMs did not meet the calcium DRI. Dietary fiber and potassium contents were also insufficient in most RM. In adult male's RM, only 1 nutrient, i.e. calcium did not meet the DRI, but in female adult's RM, 5~6 nutrients did not meet the DRI. Energy contribution ratio of carbohydrate, protein, and fat in RM were 59.0~70.4%, 15.7~17.5%, 12.1~23.5%, respectively. And 4 RMs out of 10 exceeded the upper limit of acceptable macro-nutrient distribution range (AMDR) of carbohydrate and 3 RMs out of 10 RM were below the lower limit of fat AMDR. Contribution ratio of nutrients were ${\geq}40%$ by food groups were as follows: grain group in energy and carbohydrate; meat fish egg legume group in fat, protein, and niacin; vegetables group in dietary fiber, vitamin A, and vitamin C; milk dairy products group in calcium. Conclusions: RM prepared according to the Target Pattern did not meet nutritional adequacy as expected. Especially calcium, potassium, and dietary fiber contents are needed to be increased in many RMs. Further, energy content in RM needs to be adjusted for fat sugar food group assigned in Target Pattern and condiment.

• Applied Biological Chemistry
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• 제24권2호
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• pp.94-100
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• 1981

콩나물제조중(製造中) 단백질(蛋白質)의 영양가(營養價)를 화학적(化學的)으로 평가(評價)하기 위해서 대두중(大豆中)의 아미노산조성(組成)과 이들대두(大豆)가 발아하여 콩나물로 자라는 동안의 아미노산의 변화(變化)를 분석(分析)하였다. 콩나물제조중(製造中) 총(總)아미노산의 변화(變化)를 분석(分析)하였다. 콩나물제조중(製造中) 총(總)아미노산의 변화(變化)는 2일(日)까지는 거의 함량변화(變化)가 없으나 그 이후(以後)부터는 감소(減少)되었고 부위별(部位別)로는 자엽부(子葉部)에서는 감소(減少)되나 배유부(胚乳部)에서는 증가(增加)되었다. 총(總)아미노산에 대(對)한 필수(必修)아미노산의 비(比)는 4일(日) 이후(以後)에 급격(急激)히 감소(減少)되는데 특히 배유부(胚乳部)에서 더 크게 감소(減少)되었다. 여러 아미노산중(中) 특히 aspartic acid의 증가(增加)가 크고 glutamic acid의 감소(減少)가 현저하였다. 총(總)아미노산조성(組成)에 의하여 chemical score를 구(求)하면 A/E와 A/T치(値)는 불규칙(不規則)하게 나타났으나 대두(大豆)와 콩나물 다같이 대체적(大體的)으로 낮은 치(値)를 보였으며 제한(制限)아미노산은 methionin이었다. FAO refernce protein과 requirement pattern을 기준으로하여 구(求)한 chemical score의 값은 2일(日)콩나물>콩>4일(日)콩나물>8일(日)콩나물>6일(日)콩나물의 순(順)으로 나타났고 반면에 essential amino acid index와 requirement index로는 2일(日) 콩나물>콩>4일(日)콩나물>6일(日)콩나물>8일(日)콩나물의 순(順)으로 나타났다.