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投稿时间:2016-07-27
投稿时间:2016-07-27
中文摘要: 利用正交试验优化平菇下脚料中麦角硫因的回流提取工艺。通过高效液相色谱法,Kromasil100-5NH2 柱(250 mm×4.60 mm, 5 μm),流动相乙腈-5 mmol/L 醋酸铵(80 ∶ 20,体积比),254 nm 下进行检测,建立麦角硫因的含量测定方法,以 平菇下脚料中麦角硫因的含量及得率为评价指标。在单因素试验的基础上采用正交设计方法 L9(34)考察提取时间、提
取次数和料液比对麦角硫因提取效果的影响。结果表明平菇下脚料中麦角硫因的最佳提取工艺条件为:提取溶剂 10 % 乙醇,料液比 1 ∶ 6(g/mL),提取时间为 2 h,提取 2 次。通过验证试验,麦角硫因的总提取率可达 87.45 %,含量可达 0.5 %。
Abstract:The extraction technique for ergothioneine from mushroom scraps of Pleurotus ostreatus(Fr. ) Kum- mer was optimized.The analysis were performed on Kromasil 100-5NH2 column with mobile phase consisted of acetonitrile-5 mmol/L ammonium acetate solution (80 ∶ 20,volume ratio). The detected wavelength was set at 254 nm. The content and the extraction yield of ergothioneine were used as index to evaluate the technologies based on single factor test, in which three factors were considered the concentration of extraction time, extrac- tion times and solid-liquid ratio by orthogonal design. The best extraction conditions were as follows: ethanol concentration of 10 %, twice, extraction time of two hours and ratio of liquid to solid of 1 ∶ 6(g/mL). The opti- mized extraction rate could reach 87.45 %, the content of ergothioneine was 0.5 %.
文章编号:201703010 中图分类号: 文献标志码:A
基金项目:天津市科技支撑项目(12ZCZDNC01500)
作者 | 单位 |
薛天凯1,2,赵艳敏1,2,林纪伟3,刘岱琳2,*,刘成航4 | 1. 天津中医药大学,天津 300193;2. 武警后勤学院,天津 300309;3. 天津市河西区卫生监督所, 天津 300211;4. 天津市科曼思特医药科技发展有限公司,天津 300457 |
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