• Proceedings of the Plant Resources Society of Korea Conference
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• 2021.04a
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• pp.63-63
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• 2021

사회가 발달할수록 사람들의 건강과 웰빙에 대한 욕구는 더욱 늘어가고 이에 따라서 몸에 좋은 것들을 찾고 개발하여 다양한 음료와 차들이 판매되고 있는 실정이다. 이에 색과 기능성이 뛰어난 꽃차들에 대한 선호도가 점점 올라가고 있으며 그중에서도 색과 향과 맛 및 기능성까지 뛰어난 대표적인 꽃차가 백목련 꽃차이다. 본 연구에서는 노화억제 물질로 잘 알려져 있는 항산화물질들이 제조된 2017년부터 2021년까지의 연도에 따라서 차이가 있는 지를 알아보고자 수행하였으며 그 결과는 다음과 같았다. 1. Flavonoid 함량은 측정농도(1g/100ml)로 제조연도가 2017년 것은 499.0±11.0ppm, 2018년 것은 485.0±16.0ppm, 2019년 것은 422.0±13.0ppm, 2020년 것은 759.0±38.0ppm, 2021년 것은 509.0±14.0ppm으로 2020년에 제조한 것이 가장 높은 함량을 보였다. 2. Chlorogenic acid 함량은 측정농도(1g/100ml)로 제조연도가 2017년 것은 2062.0±63.0ppm, 2018년 것은 2253.0±21.0ppm, 2019년 것은 2035.0±25.0ppm, 2020년 것은 3363.0±52.0ppm, 2021년 것은 2359.0±35.0ppm의 함량을 보였다. 3. Catechin 함량은 측정농도(1g/100ml)로 제조연도가 2017년 것은 1343.0±42.0ppm, 2018년 것은 1470.0±14.0ppm, 2019년 것은 1325.0±17.0ppm, 2020년 것은 2210.0±35.0ppm, 2021년 것은 1541.0±24.0ppm의 함량을 보였다. 4. Tannic acid 함량은 측정농도(1g/100ml)로 제조연도가 2017년 것은 1403.0±42.0ppm, 2018년 것은 1530.0±14.0ppm, 2019년 것은 1385.0±17.0ppm, 2020년 것은 2270.0±35.0ppm, 2021년 것은 1601.0±24.0ppm의 함량을 보였다. 5. 모든 항산화물질에서 2020년에 제조한 꽃차가 가장 높은 함량을 보였다.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.10 no.1
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• pp.44-50
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• 2007

Purpose: The role of plain, abdominal radiography in childhood constipation has not been fully evaluated. The aim of this study was to determine the accuracy and reliability of scoring systems assessing a fecal load on plain, abdominal radiographs in children with functional constipation. Methods: Plain, abdominal radiographs from 38 constipated children and 39 control children were examined by four independent inspectors, pediatric residents. Four inspectors independently scored the radiographs according to three different scoring systems Barr, Blethyn, and Leech. No clinical information about the patients was available to the inspectors. Each abdominal radiograph was evaluated on two separate occasions, one week apart. Kappa coefficients were calculated as indicators of inter-and intra-inspector variability, coefficients <0.20, 0.21~0.40, 0.40~0.60, 0.61~0.80 and 0.81~1.00 were considered to indicate poor, fair, moderate, good, and very good agreement, respectively. Results: The Leech score showed the highest reproducibility: the inter-inspector agreement was uniformly very good on two separate occasions (${\kappa}$ values of 0.88, 0.91, 0.92, 0.86 in the first time and 0.81, 0.88, 0.89, 0.84 in the second time). Agreement using the Barr score was good (${\kappa}$ values of 0.66, 0.67, 0.69, 0.66 in the first time and 0.68, 0.65, 0.71, 0.68 in the second time). However, agreement for the Blethyn score was the lowest of the three scoring systems. The Leech scoring system had the highest sensitivity and specificity compared to the Barr scoring system for the diagnosis of functional constipation by plain, abdominal radiographs. Conclusion: The Leech score appeared to be a more accurate and reliable method because of its high sensitivity and specificity for evaluating the fecal load on plain, abdominal radiographs in children with functional constipation. Therefore, the Leech scoring system was found to be the most useful for assessment for the degree of constipation on plain, abdominal radiographs in children.

• Proceedings of the Korea Society of Poultry Science Conference
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• 2004.11a
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• pp.99-100
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• 2004

The observed means and standard divisions of the egg shape per generation in korean native chickens were as follow. The egg major axis, the egg miner axis and the egg shape index were 53.0$\pm$0.6～55.6$\pm$0.8 mm, 39.1$\pm$0.8～40.9$\pm$0.2 mm and 72.7$\pm$1.5～75.9$\pm$0.5 mm. The regression coefficients were -0.02～0.20 mm, 0.10～0.52 mm and 0.19～1.00 mm respectively.

• Journal of Nutrition and Health
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• v.16 no.3
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• pp.185-192
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• 1983

한국인과 한국산 가축의 selenium 영양상태를 파악하기 위하여 남한의 selenium 분포조사를 실시한 결과 전국 45개 지역 토양중 selenium 함량은 0.03 내지 0.24 ppm이였으며 중앙 동북 고산지대는 0.14-0.24 ppm으로 높았고 서해안 그리고 남해안은 0.03-0.06 ppm으로 비교적 낮았다. 전국 42개 지역에서 채취한 목초 (억새, 크로바 )는 0.036 ppm (0.02-0.13ppm )을 함유하고 있으며 콩, 보리, 쌀은 0.047, 0.033 그리고 0.033 ppm selenium을 각각 함유하고 있었다. 전국 23개 도시에 거주하는 204명의 사람에서 채취한 혈액에는 평균 $0.16\;{\pm}\;0.06{\mu}g/m1$ $(0.05-0.35{\mu}g/ml)$ selenium 함량을 갖었고 glutathione peroxidase 활성도는 평균 $13.0\;{\pm}\;1.7\;EU/mg$ homoglobin이었다. 남한에서 생산되는 곡류와 채소류에는 0.02 내지 0.04 ppm의 selenium을 함유하고 육류인 쇠고기, 돼지고기에는 $0.11\;{\pm}\;0.05$와 $0.14\;{\pm}\;0.03\;ppm$을 그리고 참치, 조기, 숭어, 마른멸치등에는 $0.50\;{\pm}\;0.02,\;0.42\;{\pm}\;0.09,\;0.20\;{\pm}\;0.02$ 그리고 $0.55\;{\pm}\;0.04\;ppm$ selenium을 각각 함유하고 있었다. 국민 1인당 하루 selenium 섭취량은 $42.3\;{\mu}g$이며 이중 71 %는 주로 곡류와 채소에서 충당하고 있다.

• Journal of Industrial Convergence
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• v.21 no.10
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• pp.57-63
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• 2023

This study aims to elucidate the effect of glycyrrhizic acid on smooth muscle contraction and to determine the detailed mechanism incorporated. We hypothesized that glycyrrhizic acid played a role in the agonist-sensitive management of smooth muscle contraction. Stripped smooth muscles of Sprague-Dawley rats were prepared in organ baths and isometric tensions were converted, stored and analyzed by using isometric transducers, a physiograph and one way ANOVA. Interestingly, glycyrrhizic acid attenuated the thick filament regulating agonist (fluoride or thromboxane mimetic)-sensitive contraction (p=0.113, 0.008, 0.004 (Student's t-test), p=0.113, 0.008, 0.004 (One way ANOVA) at 0.01, 0.03, 0.1 mM fluoride, and p=0.156, 0.004, 0.003 (Student's t-test), p=0.156, 0.004, 0.003 (One way ANOVA) at 0.01, 0.03, 0.1 mM thromboxane mimetic) and did not attenuate the thin filament regulating agonist (phorbol ester)-induced contraction (p=0.392, 0.086, 0.065 (Student's t-test), p=0.392, 0.086, 0.065 (One way ANOVA) at 0.01, 0.03, 0.1 mM phorbol ester). It is suggesting that endothelial EDRF (NO) synthesis and accessory pathways besides endothelial EDRF (NO) synthesis such as ROCK restriction might be incorporated in the glycyrrhizic acid-induced modulation of smooth muscle contraction inhibiting acto-myosin interaction.

• Korean Journal of Agricultural Science
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• v.14 no.1
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• pp.51-60
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• 1987

The study was conducted to estimate the heritabilities, genetic and phenotypic correlations on preweaning body weight and postweaning traits. The data analysis were the record of 253 male pigs produced from 54 boars of Landrace, Hampshire, Large Yorkshire and Duroc purebreds raised at National Animal Breeding Institute from 1978 to 1983. The results obtained in this study are summarized as follows. 1. The heritabilities of body weight at birth, 21days and 56days were $0.233{\pm}0.160$, $0.485{\pm}0.185$ and $0.758{\pm}0.214$, respectively, and the heritabilities estimated on postweaning traits were $0.270{\pm}0.164$ for average daily gain, $0.350{\pm}0.174$ for feed requirement, $0.272{\pm}0.165$ for backfat thickness, $0.887{\pm}0.221$ for days to 90Kg and $0.565{\pm}0.195$ for selection index. 2. Genetic correlations of body weight at birth with 21 days and 56 days were 0.349 and 0.19& and body weight at 21 days with 56 days was 0.907, and daily gain with feed requirement, backfat thickness, days to 90 Kg and selection index were -0.552, 0.107, -0.903 and 0.716, and feed requirement with backfat thickness, days to 90Kg and selection index were -0.058, 0.699 and -0.942, and backfat thickness with days to 90 Kg and selection index were -0.237 and -0.025, respectively. 3. Phenotypic correlations of body weight at birth with 21 days and 56 days were 0.342 and 0.287, and body weight at 21 days with 56 days was 0.893 and daily gain with feed requirement, backfat thickness, days to 90Kg and selection index were -0.062, 0.093, -0.651 and 0.540, and feed requirement with backfat thickness, days to 90Kg and selection index were 0.105, 0.601 and -0.613, and backfat thickness with days to 90Kg and selection index were -0.040, -0.416, respectively.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.25 no.7
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• pp.506-510
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• 2012

In this study, lead-free $(Na_{0.465}K_{0.465}Bi_{0.07})(Nb_{0.93}Ti_{0.07})O_3-0.08MnO_2$ ceramics were fabricated by conventional mixed oxide method. Structural and electrical properties of lead-free $(Na_{0.465}K_{0.465}Bi_{0.07})(Nb_{0.93}Ti_{0.07})O_3-0.08MnO_2$ ceramics with the variation of sintering temperature were investigated. As results of x-ray diffraction analysis, all specimens showed a typical polycrystalline perovskite structure without presence of the second phase. Sintered density increased with an increases of sintering temperature and the specimen sintered at $1,020^{\circ}C$ showed the maximum value of 4.5 $g/cm^3$. The average grain size of the $(Na_{0.465}K_{0.465}Bi_{0.07})(Nb_{0.93}Ti_{0.07})O_3-0.08MnO_2$ specimen sintered at $1,020^{\circ}C$ is about 0.83 ${\mu}m$. Electromechanical coupling factor, relative dielectric constant and dielectric loss of $(Na_{0.465}K_{0.465}Bi_{0.07})(Nb_{0.93}Ti_{0.07})O_3-0.08MnO_2$ specimens sintered at $1,020^{\circ}C$ were 0.252, 741 and 0.043% respectively.

• Journal of the Korean Society of Food Science and Nutrition
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• v.29 no.3
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• pp.364-368
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• 2000

국내에서 생산된 곡류 9종 416건, 두류 5종 296건 및 서류 2종 156건에 대해 수은 함량은 Mercury Analyzer로, 납, 카드뮴, 비소, 구리, 망간, 아연 등은 습식분해 후 ICP로 분석하였다. 본 연구 결과, 곡류중 중금속 함량[최소~최대(평균),mg/kg]은 다음과 같았다. 수은 0.0001~0.051(0.007), 납 0.01~0.39(0.13), 카드뮴 0.001~0.098(0.023), 비소 0.01~0.38(0.09), 구리 0.06~11.85(1.73), 망간 0.91~39.15(7.47), 아연 1.35~24.15(9.32) mg/kg으로 나타났다. 또한 두류중 중금속 함량(mg/kg)은 수은 0.0002~0.031(0.005), 납 0.01~0.38(0.12), 카드뮴 0.005~0.098(0.030), 비소 0.01~0.37(0.10), 구리 0.03~6.56(2.44), 망간 0.85~22.97(8.16), 아연 2.40~40.18(11.25) mg/kg이었다 서류중 중금속 함량(mg/kg)은 수은 0.002~0.036(0.017), 비소0.01~0.20(0.08), 구리 0.02~2.91(0.84), 망간 0.26~9.48(2.54), 아연 0.35~6.11(2.23)mg/kg이었다. 본 연구에서 얻어진 분석치들은 국내외 다른 연구자들의 분석치와 비슷한 것으로 나타났으며, 이는 우리나라에서 생산된 곡류, 두류, 서류중의 중금속 함유량은 오염된 것이 아닌 자연함유량 수준인 것으로 파악되어 우리나라 사람이 이들 농산물에서 섭취하는 중금속량으로 인한 위해성은 없는 것으로 판단된다. 또한 우리나라 국민이 곡류, 두류, 서류 등을 통해 섭치하는 납, 수은, 카드뮴 등의 중금속 주간섭취량은 FAO/WHO에서 중금속 안전성 평가를 이해 정한 잠정주간섭취혀용량인 PTW1의 0.2~19%를 차지하고 있다.

• Membrane Journal
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• v.11 no.4
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• pp.143-151
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• 2001

We have fabricated mixed-ionic conducting membranes, L $a_{0.6}$S $r_{0.4}$ $Co_{0.2}$F $e_{0.8}$ $O_{3-}$$\delta$/ and L $a_{0.7}$S $r_{0.3}$G $a_{0.6}$F $e_{0.4}$ $O_{3-}$$\delta$/ by the solid state method. Ceramic membranes consisted of perovskite-type structures and exhibited high relative density, >95%. Especially, dense L $a_{0.6}$S $r_{0.4}$Co $O_{3-}$$\delta$/ layer was coated on the L $a_{0.7}$S $r_{0.3}$G $a_{0.6}$F $e_{0.4}$ $O_{3-}$$\delta$/ membranes by using screen printing technique in order to improve oxygen ion flux. We measured oxygen ion flux on uncoated L $a_{0.6}$S $r_{0.4}$ $Co_{0.2}$F $e_{0.8}$ $O_{3-}$$\delta$/, uncoated L $a_{0.7}$S $r_{0.3}$G $a_{0.6}$F $e_{0.4}$ $O_{3-}$$\delta$/, and coated L $a_{0.7}$S $r_{0.3}$G $a_{0.6}$F $e_{0.4}$ $O_{3-}$$\delta$/ membranes. The L $a_{0.6}$S $r_{0.4}$ $Co_{0.2}$F $e_{0.8}$ $O_{3-}$$\delta$/ membranes showed the highest flux, 0.26 mL/min.$\textrm{cm}^2$ at 90$0^{\circ}C$, after steady state had been reached. The oxygen flux of coated L $a_{0.7}$S $r_{0.3}$G $a_{0.6}$F $e_{0.4}$ $O_{3-}$$\delta$/ membranes showed higher value, 0.19 mL/min.$\textrm{cm}^2$ at 95$0^{\circ}C$. This flux was as much as 2 or 3 times higher than those of uncoated L $a_{0.7}$S $r_{0.3}$G $a_{0.6}$F $e_{0.4}$ $O_{3-}$$\delta$/ membranes. 3-$\delta$/ membranes.X> 3-$\delta$/ membranes.membranes.

• Applied Biological Chemistry
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• v.37 no.4
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• pp.259-265
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• 1994

To investigate the effects of protein concentration, heat treatment and pH on the foaming properties of sodium caseinate, surface tension, apparent viscosity, turbidity, foaming ability and foam stability at 1.0, 3.0, 5.0, 7.0 and 10.0% (W/V), at 55 and $65^{\circ}C$ and at pH 6.0, 7.0 and 8.0 were examined. The conditions of protein concentrations for the foaming abilities were $3.0{\sim}7.0%$ (W/V). Foam stabilities of heated sodium caseinates were worse than those of unheated sodium caseinates (control) at pH6.0 and 7.0 (p<0.05), while the heated one were better than the unheated at pH 8.0, 10.0% concentrations (p<0.05). Also foam stabilities of sodium caseinate at pH 6.0 were higher than those at pH 7.0 and 8.0. Foaming ability and foam stability were inconsistently effected by changing protein concentration, heat treatment and pH.