Jung‐Han Kim

Yonsei University

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Ick‐Dong Yoo

Korea Research Institute of Bioscience and Biotechnology

Sang‐Jun Lee

Jeonbuk National University

Seung‐Uk Oh

Korea Research Institute of Bioscience and Biotechnology

Son‐Mook Oh

Sung‐han Kim

Yonsei University

Bong‐Sik Yun

Jeonbuk National University

Won‐suck Sun

Yonsei University

Ha‐Yull Chung

Hankyong National University

Kyoung‐Rae Kim

Sungkyunkwan University

Junichi Goto

Yamagata University

Cooperative Institutions

Yonsei University

Korea Research Institute of Bioscience and Biotechnology

Jeonbuk National University

Kyungpook National University

Chung-Ang University

Korea Institute of Science and Technology

Sungkyunkwan University

Kwangshin University

Chungnam National University

Seoul National University Bundang Hospital

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ChemInform Abstract: YUA001, a Novel Aldose Reductase Inhibitor Isolated from Alkalophilic Corynebacterium sp. YuA25. Part 2. Chemical Modification and Biological Activity.

ChemInform (2002)

Won‐suck Sun Hyo‐sung Lee Jung‐min Park Sung‐han Kim Juhyun Yu

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

10.1002/chin.200215215

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Preparation of sorbitol fatty acid polyesters, potential fat substitutes: Optimization of reaction conditions by response surface methodology

Journal of the American Oil Chemists Society (1996)

Ha‐Yull Chung Jiyong Park Jung‐Han Kim Un‐Yong Kong

Abstract Effects of the reaction temperature, reaction time, mole ratio of fatty acid methyl esters (FAME) to sorbitol, and mole ratio of fatty acid sodium soaps (FASS) to sorbitol on yields of sorbitol fatty acid polyester (SFPE) were examined with a response surface methodology. The optimum reaction conditions selected with response surface analysis were as follows: reaction temperature, 144°C; reaction time, 6.65 h; mole ratio of FAME to sorbitol, 10.7∶1; and mole ratio of FASS to sorbitol, 0.77∶1. Under these reaction conditions, the experimental yield of sorbitol fatty acid polyester (mean value: 92% range: 89–94%) obtained from seven replications was close to the predicted value (94%) calculated from the polynomial response surface model equation. The response surface methodology approach used in this study was able to predict the reaction conditions necessary for a high yield of sorbitol fatty acid polyester.

10.1007/bf02518120

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Simultaneous chiral discrimination of multiple profens by cyclodextrin‐modified capillary electrophoresis in normal and reversed polarity modes

Electrophoresis (2003)

Sookie La Ji-yung Kim Jung‐Han Kim Junichi Goto Kyoung‐Rae Kim

Abstract Simultaneous enantioseparations of nine profens for their accurate chiral discrimination were achieved by capillary electrophoresis (CE) in the normal polarity (NP) mode with a single cyclodextrin (CD) system and in the reversed polarity (RP) mode with a dual CD system. The single CD system in the NP mode employed heptakis(2,3,6‐tri‐ O ‐methyl)‐β‐cyclodextrin (TMβCD) added at 75 m M –100 m M 2‐( N ‐morpholino)ethanesulfonic acid buffer (pH 6.0) as the optimum run buffer. The dual CD system operated in the RP mode used 30 m M TMβCD and 1.0% anionic carboxymethyl‐β‐cyclodextrin dissolved in pH 3.0, 100 m M phosphoric acid‐triethanolamine buffer containing 0.01% hexadimethrine bromide added to reverse the electroosmotic flow. Fairly good enantiomeric resolutions and the opposite enantiomer migration orders were achieved in the two modes. Relative migration times to internal standard under respective optimum conditions were characteristic of each enantiomer with good precision (< 2% relative standard deviation, RSD), thereby enabling to crosscheck the chemical identification of profens and also their accurate chiralities. The method linearity in the two modes was found to be adequate ( r ≥ 0.9991) for the chiral assay of the profens investigated. Simultaneous enantiomeric purity test of ibuprofen, ketoprofen and flurbiprofen in a mixture was feasible in a single analysis by the present method.

Triethanolamine

Flurbiprofen

Phosphoric acid

Ketoprofen

10.1002/elps.200305450

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멀티채널 비음수 행렬분해와 정규화된 공간 공분산 행렬을 이용한 미결정 블라인드 소스 분리

Son‐Mook Oh Jung‐Han Kim

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