• 생약학회지
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• 제4권4호
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• pp.173-179
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• 1973

Tobacco, which has nicotine for its main component, has been in medical use for a long time and in great demand for smoking throughout the world. The purpose of this study is to control nicotine amount and to increase yield more efficiently by the method of systematic variations. Nutrient solutions for tobacco culture were designed and prepared in 10 kinds with mineral ions: $NO_{3^-},\;SO_{4^{--},\;PO_4{^{-3},\;K,{^+}\;Ca,{^{++}\;Mg,{^{++}$, Mn, B, Cu, Zn, Mo, and Fe. Nicotiana tabacum L. Yellow Special A, grown for 50days from sowing, was replanted in plastic pot and cultured for 65 days supplying with prepared nutrient solutions. After harvest, their nicotine amount was determined by means of acid-base titrimetry and gas chromatography. The tobacco plants in KCa 4 and KMg 9 groups demonstrated the highest yield in total leaves weight and KMg 7 group in average nicotine amount. They have shown the increase of nicotine amount from lower leaf to 16th leaf, and thereafter decreased gradually. The author also pursued the optimum ionic proportions for the absolute nicotine amount in tobacco by means of systematic variations method.

• International Journal of Industrial Entomology and Biomaterials
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• 제25권1호
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• pp.123-127
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• 2012

An experiment was carried out to boost the production of tasar crops through application of secondary nutrients. Different combinations of secondary nutrients were prepared and its effect was studied on the yield and quality of leaves of tasar food plant Terminalia tomentosa W & A with 2.4 m ${\times}$ 2.4 m spacing and cocoon characters of tasar silkworm Antheraea mylitta Drury reared on them. Among different combinations of secondary nutrients, foliar application of magnesium sulphate (2%, w/v) and basal application of 3 quintal/ha of calcium carbonate (secondary nutrient combination SM5) was found to be the best in crop improvement. It improves the quantity and quality of leaves as well as the commercial characters of cocoons. As a result, silk production improves. Under this combination, leaf yield increased by 26.55% in comparison to control. Average increase in moisture, total mineral, crude protein and total carbohydrate was 3.26%, 20.84%, 15.39% and 17.85% respectively as compared with control. Further, bio assay studies revealed that average larval weight, E.R.R., cocoon weight, shell weight and silk ratio percent increased by 11.25%, 25.71%, 20.05%, 35.14% and 12.17% respectively over control which indicates that secondary nutrient combination $SM_5$ has significant role in improving the production of tasar crops.

• 한국식생활문화학회지
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• 제8권2호
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• pp.91-101
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• 1993

Unit price of meal provision in industrial foodservice differs with each business. It is believed that menu management work, contents of menu, and nutrition supply performed by dietitian are different with unit price of meal provision. In this sense, purposes of this study are to examine meal management work and contents of menu, by food cost, at industrial foodservice in Taegu, Kyungbuk area and to evaluate variety of menu and nutrition supply. Results of the study are as follows: 1. Average number of side dishes provided at meal, including Kimchi, was 2 at low unit price, 3.0 at middle unit price and 3.1 at high unit price. 2. Possession ratio of account books using for menu management was low. 3. With regard to kind of menu, high unit price was most various and showed more various, compared to low unit price, especially in cooking oil-used cook methods such as broil, pan-fried food, fry, and roast. 4. High unit price was found as the highest in kind of used food and supply volume. 5. Sugar, Mineral, Vitamine, and Protein were satisfied with standard food content, but fat and calcium were not. 6. Supply volume of food was positively correlated to supply volume of nutrient, but kinds of cook methods and food type were not correlated to that of nutrient.

• Environmental Engineering Research
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• 제23권4호
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• pp.449-455
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• 2018

In this study, the contribution of hot biomass ash to enrichment of the mineral content and to reducing the moisture content of broiler poultry manure was investigated. For this purpose, the mixtures have been prepared by adding biomass ash at varying rates (10%, 20%, 30%, 40% and 50%) and at different temperatures ($100^{\circ}C$, $150^{\circ}C$, $200^{\circ}C$ and $250^{\circ}C$) according to the dry matter content (74.77%) of the poultry manure. The results showed that incorporation of biomass ash into poultry manure at 50% at $250^{\circ}C$ reduced the moisture content from 25.23% to 9.82%. Regarding the maximum N in the final product, the ideal temperature of biomass ash has been obtained at $150^{\circ}C$. The highest nutrient contents were obtained at 50% biomass ash incorporation. The highest dose of biomass ash application had significantly increased nutrients, such as Ca (19.34%), K (4.03%), Fe (1,545 mg/kg), Mn (812 mg/kg) and Zn (479 mg/kg) in the final organomineral fertiliser formulation. Overall, it was concluded that the addition of hot biomass ash can dramatically decrease the moisture content of poultry manure and therefore provide odour and pathogen removal and increase its plant nutrient content.

• 생물환경조절학회지
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• 제7권3호
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• pp.206-213
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• 1998

본 실험은 전남대학교 농과대학 연구온실에서 무등산수박의 건묘 생산에 있어 묘의 소질을 결정하는 NO$_{3}$$^{1}$, $K^{＋}$ 및 $Ca^{＋＋}$을 농도별(Total-N=94, 106, 112, 206, 406ppm; $K^{＋}$= 100, 150, 200, 400ppm; $Ca^{＋＋}$= 80, 150, 200, 320ppm)로 처리하여 분석한 결과 배양액의 N 농도를 증가시킬수록 초장, 엽면적, 엽수, 지상부의 생체중 및 건물중이 증가하였다. 그러나 K 농도를 증가시켰을 경우 수박 유묘의 초장은 200ppm까지는 약간 증가하지만 200ppm 이상으로 증가시키면 엽면적, 엽수, 엽장, 생체중 및 건물중이 감소하였다. Ca처리의 경우도 농도의 증가에 따른 엽면적과 엽생체중 및 건물중의 감소가 현저하였다. N의 농도를 206ppm으로 증가시킨 경우 무등산수박 묘의 엽병내 N, K 및 Mg의 함량은 증가하였지만 P 및 Ca의 함량은 차이를 보이지 않았다. K의 농도를 150ppm으로 증가시킨 경우 수박유묘의 엽병내 N, K 및 Mg의 함량이 증가한 반면 200ppm이상으로 증가시킨 경우에는 N와 Mg의 감소가 나타났으며 P 및 Ca의 함량은 차이를 보이지 않았다. 그러나 배양액에 Ca의 농도를 증가시킨 경우 엽병내 N, K, Ca 및 Mg의 농도가 증가하는 반면 200ppm 이상에서는 N의 감소가 관찰되었다.

• 한국가정과교육학회지
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• 제18권4호
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• pp.207-216
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• 2006

본 연구는 대구 경북 지역 체육고등학교 남자 운동선수와 일반 고등학교 남학생의 신체 조성과 영양소 섭취 상태를 알아보는 데 목적이 있다. 본 연구는 체육고둥학교 남학생 122명과 일반고등학교 남학생 78명을 대상으로 이루어졌다. 통계자료 분석은 SPSS 12.0 프로그램을 사용하여 평균, 표준편차, t-test를 실시하였다. 본 연구의 결과는 다음과 같이 요약될 수 있다. 첫째, 운동군의 가슴둘레는 비운동군보다 유의적으로 크게 나타났고 비운동군의 엉덩이둘레는 운동군보다 더 큰 것으로 나타났다(p<0.01). 비운동군의 상완삼두근 상완이두근 견갑골하단의 피하지방두께는 운동군보다 유의적으로 높게 나타났다(p<0001). 비운동군의 체지방률과 체지방량은 운동군보다 높게 나타났으며 운동군의 제지방률은 비운동군보다 유의적으로 높게 나타났다(p<0.001). 둘째, 나트륨, 비타민 B6, 비타민 E를 제외한 모든 영양소의 섭취상태에서 운동군이 비운동군보다 높게 나타났다(p<0.001). 운동군은 칼슘을 제외한 모든 영양소에서 영양권장량 이상의 섭취를 하였다. 셋째, 전체적인 영양지식 점수는 비운동군이 운동군보다 유의하게 높게 나타났다 (p<0.05).

• 생물환경조절학회지
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• 제5권2호
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• pp.236-247
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• 1996

본 실험은 양액의 종류와 배지의 종류, 그리고 양액의 농도가 20일 무의 생육과 몇가지 품질에 미치는 영향을 알아보고자 실시하였다. 20일 무의 양액재배시 적절한 양액의 구명을 위하여 기존의 Cooper, Hoagland, Yamazaki양액의 비교실험을 실시한 결과, YamaBaki양액이 엽장, 엽수, 지상부와 지하부 생체중 등 전반적으로 Hoagland와 Cooper 양액보다 좋은 결과를 나타내었다. 근형지수는 모든 처리구에서 약 0.66으로 비교적 낮은 수치를 보였다. 14가지 조합의 배지를 이용하여 고형배지경을 실시하였다. 그 결과 모래 배지가 가장 균일하고도 좋은 생육의 20일 무를 배출하였고, 피트모스는 반대의 생육을 보였다. 근형지수의 경우 전반적으로 고형배지경이 순수수경재배보다 높은 수치를 나타내었다. Yamazaki 양액의 적정농도 수준을 구명을 위하여 모래를 배지로 하여 20일 무의 생육과 품질을 비교 조사한 결과, 1.0mS/cm 이상의 농도에서는 전반적으로 20일 무의 생육이 좋았으며, 특히 1.5mS/cm가 가장 좋은 생육을 보였다. 비타민 C의 함량과 티오시아네이트 함량은 1.0mS/cm이상의 처리구에서는 현저한 차이가 없었으나, 0.5mS/cm는 상당히 높은 수치를 보였다. 또한 무기물 함량의 경우는 모든 처리구에서 통계적 유의성이 없었으나, 칼륨이 1.5mS/cm에서 비교적 높은 함량을 나타내었다.

• 대한지역사회영양학회지
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• 제15권4호
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• pp.429-444
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• 2010

The purpose of this study was to examine the relationship between bone density and dietary intake for college women in their twenties. This study was performed on 160 female college students residing in Gangwon-do. It was conducted using ultrasound measurement of calcaneus bone density, anthropometric checkup and food-frequency questionnaires (FFQ) comprising 94 kinds of commonly consumed foods. Subjects were divided into two groups according to the T-score of bone density: a normal group (n = 113 persons, T-score ${\geq}1$) and a risk group (n = 47, T-score < 1.0). The average age of the subjects was 20.17 years and there was no significant difference between the two groups. Body weight and body fat percentage of the normal group were significantly higher than those of the risk group. The mean daily energy intake of the normal group was significantly higher than that of the risk group. Also, protein, fat, vitamin A, niacin, vitamin B6, folate, calcium, phosphorus, sodium, potassium, iron and zinc intake for the normal group were significantly higher than for the risk group. For the intake of the commonly consumed foods (or dishes) listed in FFQ, the mean daily intake amount of loaf bread, rice cake, potatoes, spicy beef soup, cucumber, seasoned spinach perilla leaves, crown daisy, stir-fried mushroom, sea mustard, beef rib, ham, chicken, mackerel, common squid, drink type curd yogurt, oriental melon and chocolate in the normal group was significantly higher than in the risk group. While, the mean daily intake of ramyun (instant noodle) and carbonated beverage by the normal group was significantly lower than that of the risk group. In conclusion, 20 something female college students showed a higher rate (26.9%) of the bone mineral density risk group (osteopenia or osteoporosis). For the risk group, the levels of nutrient and food intake were lower than in the normal group. Therefore, the bone density risk group needs to increase their nutrient intake and diet quality by increasing the intake of various foods. In addition, they should decrease the intake of foods, which are negative for skeletal health such as instant noodles and carbonated beverages.

• 대한지역사회영양학회지
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• 제22권4호
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• pp.307-322
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• 2017

Objectives: This study examined the effects of nutrition education focused on personalized daily energy requirement and food units using Food Exchange System on anthropometric, biochemical characteristics, nutrition knowledge, dietary attitude and nutrient intakes for overweight and obese in a public health center. Methods: The subjects were 60 overweight/obese women based on BMI (educated 30 vs. non-educated 30, 50~64 years). Educated group was provided individual and/or group lessons (40 min/lesson/week, 5 week), 'Introduction: obese & health', '6 nutrients and 6 food groups', 'My obesity & daily needed energy', 'Meal planning for personalized daily energy and food units using Food Exchange Systems', and 'Smart food choices'. After education, we examined the differences in anthropometric/biochemical characteristics, nutrition knowledge, dietary attitude and nutrient intakes between educated group and non-educated group. Results: After nutrition education, in the educated group, there were improvements on anthropometric/biochemical characteristics, nutrition knowledge, dietary attitude and nutrient intakes in the educated group compared to the non-educated group. We observed a decrease in the mean weight, total cholesterol (TC) and the incidence of overweight/obesity and hypercholesterolemia and an increase in the mean lean body mass. The scores of nutrition knowledge, 'Function of carbohydrate, protein, vitamin, mineral' and 'Food Sources of fat, vitamin, mineral' were increased. The scores of dietary attitudes, 'Taking a joyful meal, a leisurely meal, a balanced meal, a meal with sufficient vegetables, a meal with diversity, a meal with spicy foods, a meal with overeating' were increased. The intakes of energy, carbohydrate, fat, protein, vitamin A, thiamin, Zn and cholesterol were decreased. The scores of INQ, protein, vitamin A, vitamin C, thiamin, riboflavin, vitamin B6, folate, Ca, P, Fe, Zn were increased. Conclusions: The nutrition education focused on personalized daily energy requirement and food exchange unit using Food Exchange System for overweight and obese may improve food behavior, dietary intakes and symptoms of overweight and obese, even in a community health center.

• The Korean Journal of Ecology
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• 제9권1호
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• pp.79-90
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• 1986

The production and decomposition of litters and nutrient cycling of forests were studied at the pine forests such as Pinus densiflora, Pinus koraiensis, Pinus rigida, Pinus thunbergii, Abies holophylla and Larix kaempfer. The annual litter production of the P. densiflora forest was the most on Mt. Mudeung which was 620.75g/$m^2$ and the least on Mt. Halla which was 155.00g/$m^2$. The decay rate of litters was the highest at the P. densiflora forest on Mt. Mudeung which was k=0.256 and the lowest at the P. densiflora forest on Mt. Halla and A. holophylla on Mt. Jiri which were k=0.099. The half time of decomposition of litters was shortest at the P. densiflora forest on Mt. Mudeung and the longest at the P. densiflora on Mt. Halla and A. holophylla forests on Mt. Jiri. The average decay rate of the L. kaempferi forests which was k=0.204 was the highest and that of the A. holophylla forests which was k=0.122 was the lowest. The decay rate tended to decrease against increasing the altitude. The annual production of litterr, the contents of mineral nutrients and the amounts of mineral nutrients inputted into the forest soil tended to increase in proportion to the decay rate, k.