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신승렬(Seung-Ryeul Shin),문광덕(Kwang-Duk Moon),이광희(Kwang-Hee Lee),김광수(Kwang-Soo Kim) 한국식품영양과학회 1993 한국식품영양과학회지 Vol.22 No.5
본 연구는 감과실의 성숙과 연화중에 일어나는 세포벽분해효소의 활성, 펙틴 및 조직의 변화를 조사하였다. Polygalacturonase와 β-galactosidase의 활성은 미숙과실에 없었으나 완숙 감과실에서 각각 55.1, 21.79unit/100g-ft. wt.이었고 연시에서는 각각 206.70, 380.23unit/100g-ft. wt.으로 증가하였다. 펙틴질의 변화는 총 펙틴과 불용성 펙틴은 성숙중에 증가하였으나 연시에서는 현저히 감소하였으며, 반변에 수용성 펙틴은 성숙과 연화중에 증가하였다. 감과실의 성숙중에 간극의 발달과 더불어 middle lamella의 용해현상이 일어났으며 연시에서는 세포가 분리되었다. This study was carried out to investigate changes in the polygalacturonase and β-galactosidase activities, pectins, cell wall structure of persimmon fruit during ripening and softening. Polygalacturonase and β-galactosidase activities were not detected at turning stage. However polygalacturonase activities of mature and soft persimmon fruits were 55.01 and 206.70units/100g-fresh weight(fr.wt.), respectively. β-Galactosidase activities of mature and soft persimmon fruits were 21.79 and 380.23unit/100g-fr. wt. respectively. The contents of total and insoluble pectins increased during maturation but decreased during softening. The content of water-soluble pectin increased during maturation and softening. The intercellular space was enduring ripening, and middle lamella was degraded in mature persimmon fruit, and the cells of soft persimmon fruit were separated each other.
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Ionescu-Shiley 승모판 조직판막 치환술 후 발생한 심한 용혈성 빈혈
김경수,김인순,김정현,문광덕,김영학,임헌길,이정균,손장원,이방헌,이재웅,지행옥,이상 대한내과학회 1995 대한내과학회지 Vol.49 No.2
Hemolytic anemia as a complication of prosthetic valve replacement has been well documented. Hemolytic anemia usually occurs in aortic valve position with mechanical valve but rare in mitral valve position especially in case of tissue valve, Cardiac valves fabricated from biologic material are associated with a reduced incidence of hemolytic anemia. Hemolysis was recently reported in patients with an Ionescu-Shiley pericardial xenograft prosthesis in the aortic position but not in the mitral site till now. A 41-year-old housewife was admitted to our hospital due to suddenly developed dark colored urine. Echocardiographic examination showed mild degree mitral regurgitation with valve thickening. There was no definite evidence of para-valvular leakage. The peripheral blood smear showed normochromic normocytic anemia. The hematologic and urinary examination revealed severe hemolytic evidence disappeared completely. We are reporting a case of severe hemolytic anemia associated with heterograft replacement of the mitral valve with a review of the literature.
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김동수,오상룡,조길석,조진호,김영명,구재근,도정룡,문광덕 한국수산학회 1994 한국수산과학회지 Vol.27 No.1
본 연구에서는 우리나라의 연근해에서 생산되는 해조류를 이용하여 압출 성형물을 제조하기 위하여 단축스쿠류 압출성형기를 이용, corn grits에 미역 분말을 첨가하여 압출성형시켰을 때 일어나는 이화학적 특성변화를 반응표면 실험계획법에 의하여 분석하였다. 미역분말을 첨가한 corn grits압출성형물의 이화학적 측정치인 각 종속변수들간의 단순상관관계를 보면 밀도는 팽화율, 명암도, 파단강도는 수분용해 도지수, 명암도, 수분흡수지수는 수분용해도지수에서 유의차를 나타내었다. 독립변수인 수분함량(15∼21%), 미역분말함량(10∼30%) 및 토출구은도(95∼115℃)의 주어진 범위에서 각 종속변수인 이화학적 특성에 대한 영향을 3차원 반응표면 회귀분석을 하였을 때, 팽화율은 수분함량이 감소하고 토출구 온도가 증가할 때 증가하였으며, 밀도는 수분함량과 미역분말함량이 증가함에 따라 증가하는 것으로 나타났다. 파단강도는 수분함량과 미역분말함량이 증가함에 따라 증가하는 것으로 나타났다. 파단강도는 수분함량이 증가함에 따라 증가하는 반면, 미역분말함량에 따라서는 감소하는 경향이었다. 수분용해도지수는 수분함량이 증가할수록 증가하는 경향으로 나타났고, 명암도는 대체로 미역함량이 증가함에 따라 감소하는 경향을 보여주었다. The present study was focused on investigation of proper processing conditions to develop physicochemical properties of extrudates using sea mustard and corn by single extruder. Response surface analysis was used to evaluate effects of extrusion variables on the quality of the extrudates. Physicochemical dependence variables of sea mustard extrudates with corn grits show a significance correlation of within 5% . Among the various dependence variables, the expansion ratio showed a high correlation with bulk density, break strength, water solubility index and yellowness. Bulk density correlated closely with water solubility index; break strength with water absorption index and lightness, and water absorption index with lightness. Water solubility index and lightness showed a significance correlation with yellowness of within 0.5%. Three dimensional graphic analysis on response surface regression was conducted with each of the dependent variables which revealed statistically significant relationship to independent variables: 15∼21% moisture content, 10∼30% sea mustard content and 95∼115℃ die temperature. Expansion ratio decreased with increasing moisture and sea mustard content. It showed the highest value at 18 % moisture content, 10% sea mustard content and 95℃ die temperature. and the lowest value was at 21% moisture content, 30% sea mustard content and 105℃ die temperature. Bulk density was highest at 21% moisture content, 30% sea mustard content and 105℃ die temperature. On the other hand, it was lowest at 18% moisture content, 10% sea mustard content and 95℃ die temperature. Break strength was highest at 18% moisture content, 10% sea mustard content and 115℃ die temperature, but lowest at 21% moisture content, 30% sea mustard content and 105℃ die temperature. Water solubility index increased in the range of 43.9∼54.8 as the moisture content increased.
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