均匀设计法优选抗感利咽糖浆半仿生法提取的工艺条件

Technical Condition Optimization of Semi-bionic Extraction for Kanggan Liyan Syrups by Uniform Design

目的:优选抗感利咽糖浆的半仿生提取条件。方法:采用均匀设计法,在处方组成和用量、煎提温度、煎提用水量、过滤方法、离心时间、浓缩倍数等条件相同的情况下,用不同p H的水溶液提取方药,以连翘酯苷A、虎杖苷、黄芩苷、大黄素的含量及干浸膏的得率为指标,经过标准化处理,综合评价,优选该方药半仿生提取的工艺条件。结果:最佳的提取工艺为三煎用水的p H值依次为4.9、7.5、9.0,三煎总时间为2 h。结论:结合生产实际,确定三煎用水的p H值依次为5.0、7.5、9.0,3煎提取时间依次为1.0 h、0.5 h、0.5 h。

Objective： To optimize the conditions of semi-bionic extraction for Kanggan Liyan syrups. Methods： The samples were extracted by water with different pH values under the same conditions of formula composition and dosage, extraction temperature, filtration method, water voulme, centrifugal time and concentration multiple. The best conditions of the semi-bionic extraction for Kang-gan Liyan syrups were screened by uniform design with the content of forsythoside A, polydatin, baicalin and emodin and the dried ex-tract weight as the indices. Results：The best technical conditions were as follows：the pH value of water for the 1st, 2nd and 3rd de-coction was 4. 9, 7. 5 and 9. 0, respectively, and the total extraction time was 2h. Conclusion：According to the industrial production conditions, the pH value of water for the 1st, 2nd and 3rd decoction is 5. 0, 7. 5 and 9. 0 with the extraction time of 1h,0. 5h and 0. 5h, respectively.