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  • 09월 03일 23시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제122회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Dispersive Liquid-Liquid Microextraction based on Deep Eutectic Solvent for the HPLC-UV Determination of Resveratrol, Oxyresveratrol and Piceatannol from Wine

2018년 8월 30일 16시 41분 34초
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금 09시 : 30분
Analytical Chemistry - Oral Presentation of Young Analytical Chemists II
저자 및
Jongsung Noh, Seung-Ho Lee, Hyun-Woo Cho1, Seung Woon Myung*
Department of Chemistry, Kyonggi University, Korea
1Department of Natural Science Chemistry, Kyonggi University, Korea
Polyphenols are phytochemicals that exist in various plants and are beneficial to human health. These ingredients prevent aging, protect the skin from ultraviolet rays, improve brain health and prevent dementia. Resveratrol, oxyresveratrol and piceatannol in grapes are typical polyphenols, and grape wine also contains these ingredients. In this study, resveratrol, oxyresveratrol and piceatannol in wine were extracted by deep eutectic solvent based dispersive liquid-liquid microextraction (DLLME) and a method for quantification these polyphenols using high performance liquid chromatography - UV/vis spectroscopy was established. Parameters for sample clean up and concentration were optimized and verified. Experiments were carried out to obtain optimal parameters such as the types and volumes of extraction solvent and dispersive solvent, molar ratio of hydrogen bonding donor and hydrogen bonding acceptor, ratio of deep eutectic solvent and water, the pH effect, and the effect of salt. Chromatographic separation with HPLC/UV-vis was performed using the eclipse XDB-C18 (2.1 mm id × 150 mm length, 4.6 μm particle size) column and gradient elution mode using water and acetonitrile. The established method would be applied to wines sold in the market and monitored.