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作 者:李永生[1,2] 林强[2] 郑来丽[2] 田平芳[1]
机构地区:[1]北京化工大学生命科学与技术学院,北京100029 [2]北京联合大学生物化学工程学院,北京100023
出 处:《食品科技》2009年第9期197-202,共6页Food Science and Technology
基 金:北京市人才强教计划-中青年骨干教师资助项目
摘 要:利用纤维素酶辅助提取乌头生物碱,以乌头碱、乌头总碱产量为指标,正交实验优化纤维素酶的最佳提取条件,再与酸水、大孔吸附树脂提取方法进行比较。结果:提取乌头碱、乌头总碱的最佳酶解条件为:温度45℃,pH值4.5,酶用量8mg/g,酶解时间5h,乌头碱产量为24.47μg/g,乌头总碱产量为2444.10μg/g,酸水提取乌头碱、乌头总碱产量分别为13.27μg/g、1534.70μg/g,大孔吸附树脂提取乌头碱、乌头总碱产量分别为15.19μg/g、1728.15μg/g,纤维素酶提取法具有明显的优势。酶解提取法可显著提高乌头碱、乌头总碱的产量,可在实际生产中推广应用。The optimum condition of enzymatic extraction has been obtained by orthogonal test and compared with semi-bionic and alcohol reflux extraction by taking the yields of aconitine and aconitum alkaloids as indexes. The optimum extraction conditions were as follows: the temperature was 45 ℃, pH is 4.5, the amount of cellulose enzyme was 88 mg/g, the extracting time was 5 h and the yield of aconitine was 24.47 ug/g,aconitum alkaloids was 2444.10μg/g. The yields of aconitine and aconitum alkaloids of acid percolation extraction were 13.27 μg/g, 1534.70 μg/g respectively. The yields of aconitine and aconitum alkaloids of macroporous adsorbing resins extraction were 15.19 μg/g, 1728.15 μg/g respectively. The enzymatic extraction has a significant advantage. The enzymatic extraction significantly improve the yields of aconitine and aconitum alkaloids, it can be applied in practice.
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