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林产化学与工业

林产化学与工业 ›› 2007, Vol. 27 ›› Issue (6): 8-12.

• 研究报告 • 上一篇    下一篇

迷迭香抗氧化剂和精油综合提取技术研究(Ⅲ)——超临界CO2萃取法

毕良武, 赵振东, 李冬梅, 古研, 王婧, 刘先章   

  1. 中国林业科学研究院 林产化学工业研究所;国家林业局 林产化学工程重点开放性实验室, 江苏 南京 210042
  • 收稿日期:2006-12-12 修回日期:1900-01-01 出版日期:2007-12-30 发布日期:2007-12-30

Study on Comprehensive Extraction of Antioxidant and Essential Oil from Rosemary(Ⅲ)——Supercritical CO2 Extraction

BI Liang-wu, ZHAO Zhen-dong, LI Dong-mei, GU Yan, WANG Jing, LIU Xian-zhang   

  1. Institute of Chemical Industry of Forest Products, CAF;Key and Open Lab.on Forest Chemical Engineering, SFA, Nanjing 210042, China
  • Received:2006-12-12 Revised:1900-01-01 Online:2007-12-30 Published:2007-12-30

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摘要： 超临界CO2萃取(SCDE)法是迷迭香抗氧化剂和精油综合提取的有效方法之一.迷迭香抗氧化剂和精油超临界CO2萃取的优选条件为:萃取时间4h,夹带剂9%乙醇与迷迭香叶子的质量比为2:5,萃取罐和分离器I的温度分别为0和70℃,分离器Ⅱ的温度为40℃,萃取压力20MPa,分离压力为4～MPa.迷迭香精油的平均得率为1.80%,迷迭香精油主要含有1,8-桉叶素、樟脑、α-松油醇、龙脑、马鞭草烯酮、4-松油醇、乙酸龙脑酯和芳樟醇等成分.迷迭香抗氧化剂的平均得率为11.93%,主要含有鼠尾草酸、鼠尾草酚和迷迭香酸等活性成分,其质量分数分别为23.61%、7.33%和.13%.

关键词: 迷迭香, 抗氧化剂, 精油, 超临界CO2萃取

Abstract: Supercritical CO2 extraction(SCDE) is a kind of effective comprehensive extraction for antioxidant and essential oil of rosemary(Rosmarinus officinalis L.). In this study, the optimal conditions of comprehensive extraction for antioxidant and essential oil of rosemary were as follows: extraction time 4 h, 95%(volume fraction) ethanol as entrainer to rosemary leaves 2:5, temperature of extraction pot 50℃, temperature of separation pot I 70℃, temperature of separation pot Ⅱ 40℃, extraction pressure 20 MPa and separation pressure 4-5 MPa. Average yield of rosemary oil was 1.80%. Results of constituent analysis of rosemary oil showed that the essential oil mainly contains 1,8-cineole, camphor, α-terpineol, borneol, verbenone, terpinen-4-ol, bornyl acetate and linalol. Average yield of rosemary antioxidant was 11.93%. Main active components of rosemary antioxidant were carnosic acid, carnosol, and rosmarinic acid, whose contents were 23.61%, 7.33% and 5.13%, respectively.

Key words: rosemary(Rosmarinus officinalis L.), antioxidant, essential oil, supercritical CO2 extraction

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