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제114회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Synthesis, characterization and potential as novel surfactant of pentacosa-10,12-diynyl amidomethyl-cyclosophoraose

등록일
2014년 8월 28일 15시 17분 47초
접수번호
1073
발표코드
ANAL.P-556 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 15일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
분석화학
저자 및
공동저자
김환희, 박경현1, 조은애2, 정선호3,*
건국대학교 생명공학, Korea
1건국대학교 특성화학부, Korea
2건국대학교 유비쿼터스정보기술연구원, Korea
3건국대학교 특성화학부 생명공학과, Korea

Cyclosophoraose (Cys), cyclic-(1→2)-β-D-glucans produced by Rhizobium leguminosarum biovar viciae VF-39, were modified by the N-hydroxysuccinimide ester of 10, 12-pentacosadiynoic acid (NHS-PCDA). The structure of PCDA-Cys was characterized using 1D, 2D nuclear magnetic resonance spectroscopy (NMR) and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). 2D NMR spectrum revealed that the PCDA moiety of the amphiphilic Cys was located in the cavity of Cys in water. However, the PCDA moiety is stretched out of the cavity in water and oleic acid mixture. In this condition, the potential of the PCDA-Cys as a novel emulsifier was examined through dynamic light scattering (DLS), optical microscopy, and contact angle measurement. DLS results exhibited no significant changes in the size distribution during incubation for 25 days at room temperature. Reduction of surface tension indicating the presence of surfactant reached a value of 41 mN/m at the end of 24 hours. This study demonstrates that PCDA-Cys is a candidate of emulsifying material for food, cosmetics and pharmaceutical industries.


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