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作 者:易封萍[1] 孙海洋[1,2] 钱冬冬[1] 田怀香[1]
机构地区:[1]上海应用技术学院香料香精技术与工程学院,上海200235 [2]上海海洋大学食品学院,上海201306
出 处:《精细化工》2009年第7期680-684,共5页Fine Chemicals
摘 要:以八角茴香果为原料,比较了超临界CO2流体萃取法(SFE)和水蒸气蒸馏法(SD)对八角茴香油的提取率和香气性能的影响。用正交设计方法,确定了超临界CO2流体萃取八角茴香油的最佳条件为:萃取压力13.8MPa,萃取温度40℃,萃取时间2 h。在该条件下,八角茴香油的萃取率为2.88%。相同的萃取条件下,用水蒸气蒸馏技术提取八角茴香油,精油萃取率为1.39%。通过气味指纹分析仪(电子鼻)检测和气味感官评定,对两种提取方法得到的八角茴香油的香气性能进行了比较,用SFE法所得八角茴香油的质量比SD法所得精油有明显改善,香气更完全,更具新鲜感和天然感。The anise star oil was extracted by two different methods i. e. , steam distillation (SD) and supercritical carbon dioxide extraction (SFE). The effects of pressure, temperature and time on the extraction of anise star oil with supercritical carbon dioxide were studied. The orthogonal design experiment was used to optimize the SFE CO2 conditions. The optimal extraction conditions were determined : extraction pressure 13.8 MPa, extraction temperature 40℃ and extraction time 2 h. Under the conditions, the extraction rate was 2. 88% in comparison of 1.39% by steam distillation. The perfume property of anise star oil by two methods was compared. The results were shown that the extraction rate was higher by SFE than that by SD, and the perfume by SFE was better, fresh and that of natural sense.
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