| 超临界CO2萃取乌饭树叶总黄酮的工艺 |
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| 引用本文： | 余清,;郑小严,;黄红霞,;李斌,;陈镇方,;陈绍军. 超临界CO2萃取乌饭树叶总黄酮的工艺[J]. 福建农业大学学报(自然科学版), 2009, 0(1): 97-102 |
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| 作者姓名： | 余清, 郑小严, 黄红霞, 李斌, 陈镇方, 陈绍军 |
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| 作者单位： | [1]福建省中心检验所,福建福州350002; [2]福建农林大学食品科学学院,福建福州350002 |
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| 摘 要： | 采用单因素与正交试验对超临界CO2萃取具有抗氧化抗衰老作用的乌饭树叶总黄酮的工艺进行了研究．试验结果表明，最佳的提取条件为：萃取压力18MPa，萃取时间1．5h，萃取温度50℃，夹带剂乙醇浓度75％，CO22流量20kg·h-1，夹带剂添加量5mL·g-1．验证试验表明，乌饭树叶总黄酮平均提取率为73．10％（n=3，RSD=3．58％），证明该条件确为最佳提取条件．
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| 关 键 词： | 乌饭树叶 超临界萃取 总黄酮 |
Technology of supercritical CO2 extraction of total flavone from the leaves of Vaccinium bracteatum Thunb. |
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| Affiliation: | YU Qing , ZHENG Xiao-yan , HUANG Hong-xia , LI Bin , CHEN Zhen-fang , CHEN Shao-jun ( 1. Fujian Center Inspection Institute, Fuzhou, Fujian 350002, China ;2. College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China) |
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| Abstract: | Single-factor experiment and orthogonal test were applied to optimize supercritical fluid CO2 extraction conditions of an- tioxidant and anti-aging total flavone from the leaves of Vaccinium bracteatum Thunb.. Results suggested the optimized conditions were pressure 18 MPa, time 1.5 h, temperature 50 ℃, co-solvent ethanol concentration 75% , flow of CO2 20 kg ·h-1 , addition of co-solvent 5 mL · g- 1. Test experiment showed average extraction rate of total flavone from the leaves of V. brctcteatum Thunb. was 73.10% （n =3, RSD =3.58% ）. This condition has been proved to be the optimized one. |
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| Keywords: | Vaccinium bracteatum Thunb. leaf supercritical fuid extraction total flavone |
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