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들깨葉 蛋白質의 消化에 있어서 glucose의 影響에 關한 硏究
김홍섭(Hong-Sub Kim) 한국식품영양과학회 1975 한국식품영양과학회지 Vol.4 No.1
The testing materials which kept perilla frutescens' leaves frezen are divided into four parts, 1. freezing green leaves, 2. glucose added to the leaves dried in the sun, 3. glucose unadded to the leaves dried in the sun and 4. the leaves dried in the immediately after collecting sample.<br/> The perilla frutescens' leaves are treated with the artificial digestion test to investigate the effects of the digestibility of ingredients and of protein.<br/> The results obtained were as follows ;<br/> 1. The digestibility of crude protein of sample using the common leaves dried in the sun immediately after collecting sample was presented highest at 83.15%, the freezing green leaves at 68.35%, glucose added to the leaves dried in the sun at 64.25% and glucose unadded to the leaves dried in the sun at 62.12%.<br/> The digestibility of perilla frutescens' by freezing green leaves, glucose added or glucose unadded to the leaves dried in the sun is on the decrease without difference.<br/> 2. It was suggested that glucose and reductive sugars to perilla frutescens' leaves is not affected by the decreased digestibility of protein, dince the digestibility of glucose added to the leaves dried in the sun and glucose unadded to the leaves dried in the sun almost never makes a difference.<br/> 3. The digestibility of freezing the green leaves for sixmonths was quite different from the leaves that were dried in the sun immediately after collecting sample, in that the leaves that were frozen for six months were decreased 1/5 quantity of the shole crude protein.
낙동벼(Oryza sativa L.)로부터 유도된 엽록소 돌연변이체의 특성
김홍섭(Hong-Sub Kim),임채규(Chae-Kyu Lim),고재문(Jae-Moon Koh),김종세(Jong-Se Kim),이숙영(Sook-Young Lee) 한국식품영양과학회 1996 한국식품영양과학회지 Vol.25 No.1
인위 돌연변이 유기에 의해 벼로 부터 새로운 유전형질체를 개발하기 위하여 낙동벼(모품종)에서 고정된 엽록소 결핍계통(ch mutant)을 선발하였다. 이 계통은 생육초기 부터 엽록소 결핍으로 정상엽에 비하여 노란색을 나타내기 때문에 엽록소의 광합성 관여 유전자탐색에 이용가능하다. ch mutant는 전 생육기간 동안 모품종의 51~87% 정도의 엽록소 함량을 보였으나 엽록소 a/b 함량비는 차이가 없었다. ch mutant의 총 엽록소 함량은 모품종의 70.2%였으며 anthocyanin 함량과 flavonol 함량은 각각 285%와 142%로 높은 함량비를 나타냈다. ch mutant의 카로티노이드 함량은 모 품종의 71.1%였고, 크산토필 함량은 56.6%였다. 특히 카로티노이드성분 중 lutein과 neoaxanthin 함량은 각각 모품종의 32%와 34.4%로 매우 낮았으며, β-카로틴은 차이가 없으나 antheraxznthin 함량은 106.9% 오히려 증가하였다. 개엽상태에서나 군락상태에서 ch mutant의 반사율과 투과율은 모두 모품종에 비하여 높아 광흡수량은 저하되었다. ch mutant 는 모품종에 비하여 출수기가 5일 늦고 간장, 수장, 주당수수, 수당 엽수, 임실율, 천립중 및 수량에서 감소하였다. chmutant와 모품종은 esterase, phosphoglucose isomerase, malic enzyme, hexokinase 동위효소의 밴드패턴에서 유의할만한 차이를 나타내지 않았으나 엽록체 단백질의 경우 주요밴드인 60KD의 분자량에서 차이를 보였다. Chlorina(ch) mutant, the chlorophyll-deficiency strain was induced from the original rice called Nagdongbyeo(Oryza sativa L.). The present study have been undertaken to characterize chlorina mutant by comparing with the original relating to physiological and biochemical properties. The chlorina mutant would be useful as a strain to detect genes involved with chlorophyll deficiency because of yellow color development in early stage of growth. a/b content ratio of chlorophyll in the ch mutant was identical with the original in all growth period but total chlorophyll contents were only 70.2% of the original. Anthocyanin and flavonol of ch mutant were remarkably increased to 285 and 142% respectively. Also the contents of carotenoids and xanthophylls in ch mutant were given 71.7 and 56.5% of the original respectively. In case of carotenoid lutein and neoxanthin decreased to 32 and 34.4%, respectively but antheranthins increased to 106.7%. β-Carotene content was the same as the original. In the individual or community condition, the reflexibility and transmission was increased in ch mutant than those in original but absortivity decreased. The earing season of ch mutant was five days late as compared to origianl ; in addition, culm and panicle length, number of panicle per hill and spikelets per panicle ripened grain ratio, 1,000-grain weight and yield decreased. Any significant difference was not observed in the pattern of isozyme such as esterase, phosphoglucose isomerase, malic enzyme and hexokinase. But the total protein pattern of chloroplast was remarkably different from each other.
고속비상체의 충돌에 의한 고강도 콘크리트 파괴성상 검토
전영석(Jeon Young-Seok),김규용(Kim Gyu-Yong),남정수(Nam Jeong-Su),김홍섭(Kim Hong-Sub),미야우치 히로유키(Miyauchi Hiroyuki) 한국구조물진단유지관리학회 2011 한국구조물진단학회 학술발표회논문집 Vol.15 No.1
This paper presents the results of an experimental study on the destruction condition of high strength concrete with compressive strengths of 74-184 ㎫ when subjected to impact by 7.0㎜ sphere projectile at velocity speed about 350 m/s. The results indicate that the penetration depth in target specimens exhibit an overall reduction with an increase in the compressive strength of the concrete. However, when there is the back destruction in target specimens, the level of brittle fracture exhibit an overall increase with an increase in the compressive strength of the concrete.