Caffeine and Catechin Extraction from Korea Green U sing Supercritical Carbon Dioxide

摘要：

Caffeine was extracted from Korea green tea using supercritical carbon dioxide with water as a cosolvent. Experiments were set to extract large amount of caffeine and to extract small amount of catechin at the same time. The experiments were carried out in a 230 mL extractor at temperatures ranging 40-80 ℃ And pressure ranging 200-400 bars with water content ranging 19.4-29.4 wt％. At the extract conditions of 40 ℃, 400 bars and water content of 29.4 wt％, caffeine extraction yield was 54 ％ while catechin extraction yield was 21 ％.

关键词： Caffeine Catechin Supercritical carbon dioxide Extraction Korea green tea Water

作者: Wan Joo Kim Jae Duck Kim Seong Gueon Oh Jaehoon Kim

作者单位: Energy & Environment Research Division, Korea Institute of Science and Technology (KIST), 39-1 Hawol Energy & Environment Research Division, Korea Institute of Science and Technology (KIST), 39-1 Hawol Department of Chemical Engineering, Han Yang University, 17, Haengdang-dong, Seongdong-gu, 133-791,

会议类型: 国际会议

会议名称: The 5th International Conference on Separation Science and Technology(第五届国际分离科学与技术会议)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-10-14（万方平台首次上网日期，不代表论文的发表时间）