• Journal of the Korean Society of Food Culture
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• v.20 no.3
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• pp.341-345
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• 2005

The anticariogenic effects and inhibition of glucosyltransferase activity of Chrysanthemun indicum L. extracts were investigated against 5 strains of microorganisms. The ethanol extracts of Chrysanthemun indicum L. showed the growth inhibition effects on the Streptococcus mutans and oral bacteria. The inhibition rate of glucosyltransferase activity of Chrysanthemun indicum L. extracts showed 78.4 to 92.3% range. The extracts were analysed by using solvent fractionation, silica gel adsorption chromatography, Sephadex LH-20 column chromatography, TLC, HPLC techniques. Three components whose molecular weights ranged from 200 to 400 were confirmed to have the anticariogenic activity.

• Applied Chemistry for Engineering
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• v.17 no.2
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• pp.183-187
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• 2006

The choice of solvents for electrolytes solutions is very important to improve the characteristics of charge/discharge in the Li-ion battery system. Such solvent systems have been widely investigated as electrolytes for Li-ion batteries. In this paper, the electrochemical properties of the solid electrolyte interphase film formed on carbon anode surface and the solvent decomposition voltage in 1 M LiPF6/EC:MA(x:y) electrolyte solutions prepared from the various mixing volume ratios are investigated by chronopotentiometry, cyclic voltammetry, and impedance spectroscopy. As a result, the solvent decomposition voltages are varied with the ionic conductivity of the electrolyte. Electrochemical properties of the passivation film were different, which are dependent on the mixture ratio of the solvents. Therefore, the most appropriate mixing ratio of EC and MA as a solvent in 1 M $LiPF_6/(EC+MA)$ system for Li-ion battery is approximately 1:3 (EC:MA, volume ratio).

• Proceedings of the Korean Magnestics Society Conference
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• 2003.12a
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• pp.279-279
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• 2003

• Proceedings of the Korean Society of Plant Pathology Conference
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• 2005.04a
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• pp.59-60
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• 2005

• Proceedings of the Korean Society of Plant Pathology Conference
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• 2005.04a
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• pp.60-60
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• 2005

• Proceedings of the Korean Society of Plant Pathology Conference
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• 2005.04a
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• pp.44-44
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• 2005

• The Science & Technology
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• v.29 no.2 s.321
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• pp.68-69
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• 1996

나일론으로 국내 고분자산업을 선도하고 있는 코오롱그룹중앙연구소가 전자산업과 생명공학분야로 연구방향을 돌려 관심을 모으고 있다. 코오롱그룹중앙연구소는 생명공학팀의 심성보팀장을 중심으로 새로운 항암물질 RRC 128-2를 개발하여 내년까지 50억원의 연구비를 투입, 제품화를 추진하고 있다.

• Proceedings of the Zoological Society Korea Conference
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• 2000.10a
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• pp.224.1-224
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• 2000

No Abstract, See Full Text

• Proceedings of the Botanical Society of Korea Conference
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• 2002.04a
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• pp.106-106
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• 2002

• Proceedings of the Korean Society of Crop Science Conference
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• 2001.05a
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• pp.214-215
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• 2001