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밀양지역 들깨품종별 잎의 아미노산 조성 및 향기성분 비교
최영환,이영근,Choi Young-Whan,Lee Young-Guen 한국생명과학회 2004 생명과학회지 Vol.14 No.6
우리나라 들깻잎의 주산지인 밀양지역에서 재배하고 있는 4종의 품질 특성을 조사하고자 아미노산과 휘발성 향 성분을 분석하여 비교하였다. 단백질구성아미노산에서 주요 아미노산은 aspartic acid, glutamic acid, glycine, alanine, arginine, 및 threonine 등 이었고, 그 외에 lysine, leucine, isoleucine 등도 다소 검출되었으나, tyrosine과 함황아미노산인 cysteine과 methionine의 함량이 가장 적 게 나타났으며, 유리 아미노산은 4종 모두에서 약34종이 검출되었다. 그리고 유리아미노산의 조성과 단백질구성아미노산의 조성에서 품종간의 차이는 거의 없는 것으로 나타났다. 들깻잎의 휘발성 향기성분을 GC-MSD로 분석한 결과, 잎들깨1호는 52종, 엽실들깨는 48종, 그리고 밀양9호와 YCPL은 47종이 분리되어 검출되었다. 깻잎의 휘발성 화합물중에서 가장 많은 함량으로 검출된 perilla ketone은 엽실들깨 $551.42\;{\mu}g/g$, 잎들깨1호 $301.59\;{\mu}g/g$, YCPL $187.00\;{\mu}g/g$, 그리고 밀양9호는 $145.75\;{\mu}g/g$이었으며, 그 외 3-hexen-1-ol, trans-2-hexenal, $\beta-caryophyllene$ 그리고 $\alpha-farnesene$등이 검출되었으나 이 화합물들의 함량은 $20\;{\mu}g/g$을 초과하지 않았다. The present investigation was carried out to determine the qualitative difference between 4 varieties of perilla leaves cultivated Miryang area, particularly focusing on the amino acid composition and flavor compounds. Aspartic acid, glutamic acid, glycine, alanine, arginine, and threonine were the major amino acids, and tyrosine and cysteine and methionine containing sulfur were detected as little amount in protein of all perilla leaves. All perilla leaves contained about 34 kinds of free amino acids, and the major free amino acids were same as the protein bound amino acids. However, no significant difference among 4 varieties of perilla leaves was observed in the profiles of protein bound and free amino acids composition. Flavor compounds analyzed by GC-MSD following to extraction of flavor by SDE (Simultaneous Steam Distillation-Extraction) were detected as 51 kinds from 'Leafy perilla 1', 47 kinds from 'Yupsil perilla', 46 kinds from 'Miryang 9' and 'YCPL. The major volatile compound was perilla ketone, its concentration was $145.75\;{\mu}g/g$ in 'Miryang 9', $187.00\;{\mu}g/g$ in 'YCPL', $301.59\;{\mu}g/g$ in 'Leafy perilla l' and $551.42\;{\mu}g/g$ in 'Yupsil perilla', but the other flavor compounds, 3-hexen-l-ol, trans-2-hexenal, $\beta-caryophyllene,\;\alpha-farnesene$ and etc, were less than $20\;{\mu}g/g$.
소아에서 고혈압, 번갈 다음증, 다뇨증, 및 저칼륨증을 유발한 레닌-분비성 윌름스 종양(Wilms' Tumor)
최영환,이남혁,김상윤,곽정식,Choi, Young-Whan,Lee, Nam-Hyuk,Kim, Sang-Youn,Kwak, Jung-Sik 대한소아외과학회 1997 소아외과 Vol.3 No.1
A 3-year-old boy with a Wilms' tumor had unusually severe hypertension, polydipsia, polyuria and hypokalemia. Physical examination on admission was unremarkable except for the presence of a smooth, firm mass in the right abdomen. Computerized tomography showed a tumor occupying the upper two thirds of the right kidney. Plasma renin activity and aldosterone concentration were markedly elevated, 37.7 mg/ml/hour(normal in supine position 0.15-2.33 mg/ml/hour) and 120.1 ng/dL(normal in supine position 1 to 16 ng/dL), respectively. Hypertension varied from 150/90 mmHg to 240/180 mmHg, and was not effectively controlled by antihypertensive drugs. Right nephrectomy was performed on the sixth hospital day. At laparatomy, there was no evidence of mechenical compression of the renal artery by the tumor. The tumor, about 8 cm in diameter, was confined to the renal capsule without involvement of the renal blood vessels at the hilum. Histopathology was Wilms' tumor of favorable histology. On electron microscopy, tumor cells contained intracytoplasmic electron dense secreting graules, suggesting the possibility of renin secreting tumor cells. Shortly after nephrectomy, signs and symptoms were relieved dramatically, and plasma renin activity and aldosterone concentration were also decreased to normal.
최영환 ( Young-whan Choi ) 한국중견기업학회 2010 중견기업연구 Vol.1 No.1
런던비즈니스스쿨 교수인 헤르만지몬은 그의 저서 <히든챔피언>에서 독일이 세계수출 1위국을 유지하는 비결로 1천개가 넘는 독일의 “히든챔피언” 기업들을 지목하며 “한 국가의 수출이 소수의 대기업에 의해 결정된다는 통념과 반대로 수출능력이 뛰어난 중간규모의 회사인 히든챔피언들이 많아야 한다”는 논거를 제시하였다. 우리나라는 2000년대 들어 수출의 경제성장기여율이 73%에 이르고 있음에도 불구하고 수출구조 양극화, 수출기여도 내실 저하, 세계시장점유율 침체 등의 문제점이 나타나고 있는 한편, 히든챔피언 기업을 찾아보기도 대단히 어려운 것이 현실이다. 한국수출입은행은 수출을 통한 우리 경제의 견실한 성장을 위해서 향후 10년간 20조원을 투입해 한국형 히든챔피언을 300개 육성한다는 구체적인 사업모델을 개발하여 본격 실행에 나서고 있으며, 이를 통해 수출증대와 고용창출, 우리 경제의 허리 보강, 내수경제 활성화, 국가브랜드 제고 등 1石 5鳥 효과를 기대하고 있다. Professor Hermann Simon of London Business School asserted in his book Hidden Champions that Hidden Champions are the driving force of the German economy and help Germany be the leading exporting country in the world. He also pointed out that contrary to the common belief that a small number of large companies largely account for a nation's export amounts, it is the small and middle sized export companies that truly drive the economy. Although the Korean economy has grown based on an export-driven policy and exports recently accounted for an average of 73% of GDP, there are problems in Korea's export sector such as polarization, deterioration of quality, and stagnant world market share. Moreover, we seldom find Hidden Champions in Korea's economy. The Export-Import Bank of Korea developed the Korean Hidden Champion Initiative to nurture 300 Korean Hidden Champions and committed 20 trillion Korean won to the program. With the Korean Hidden Champion Initiative, the Bank hopes to increase exports, create employment, strengthen the backbone of the economy, revitalize the domestic economy, and improve the nation's brand image.