| 亚临界水萃取紫草中左旋／右旋紫草素的工艺优化 |
| |
| 引用本文： | 黄萍萍,丘泰球,杨日福,蔡明迪,陈建敏.亚临界水萃取紫草中左旋／右旋紫草素的工艺优化[J].化学与生物工程,2009,26(7):42-47. |
| |
| 作者姓名： | 黄萍萍 丘泰球 杨日福 蔡明迪 陈建敏 |
| |
| 作者单位： | 1. 华南理工大学轻工与食品学院,广东,广州,510641
2. 华南理工大学物理科学与技术学院,广东,广州,510641 |
| |
| 基金项目： | 国家自然科学基金，国家科技支撑计划重点项目 |
| |
| 摘 要： | 研究了亚临界水萃取技术富集紫草中左旋/右旋紫草素的工艺过程,采用响应曲面法对影响紫草素提取率的工艺参数进行分析优化.考察了萃取温度、萃取时间和固液比对紫草素提取率的影响,结果发现三个因素在各自考察的实验范围内均有显著影响.采用可见分光光度法对亚临界水提取液中紫草素的浓度进行分析,在510 nm波长下测得的标准线性方程为y=24.77x+0.0311,相关系数为0.9905,紫草素浓度的线性范围是0.0084～0.0540 mg·mL-1.响应曲面分析模型预测的最佳提取条件是:固液比为7.875 g·L-1,在20 MPa、117.5℃下提取18 min,此时紫草素最大提取率是2.02 mg·g-1,与模型预测值基本相符.采用亚临界水萃取紫草素具有高效、环保、操作简便等优势,利用响应曲面设计能够有效地优化萃取过程,为该技术的推广提供了一定的理论支持.
|
| 关 键 词： | 亚临界水 紫草素 响应曲面法 优化 |
Optimization of Subcritical Water Extraction of Alkannin and Shikonin from the Dried Roots of Arnebia Boraginaceae |
| |
| HUANG Ping-ping,QIU Tai-qiu,YANG Ri-fu,CAI Ming-di,CHEN Jian-min.Optimization of Subcritical Water Extraction of Alkannin and Shikonin from the Dried Roots of Arnebia Boraginaceae[J].Chemistry & Bioengineering,2009,26(7):42-47. |
| |
| Authors: | HUANG Ping-ping QIU Tai-qiu YANG Ri-fu CAI Ming-di CHEN Jian-min |
| |
| Affiliation: | 1.College of Light Industry and Food Sciences;South China University of Technology;Guangzhou 510641;China;2.College of Physics Sciences and Technology;China |
| |
| Abstract: | This work reports the subcritical water(SCW) extraction procedure of alkannin and shikonin(A/S) from Arnebia boraginaceae root.The effect of extraction temperature,extraction time,and ratio of solid to liquid were evaluated through single-factor experiment maintaining the pressure of 20 MPa.The extraction process was also optimized using response surface methodology(RSM).Spectrophotometry was used to calculate the concentration of A/S in water.The standard linear equation is y=24.77x+0.0311 and the coeffici... |
| |
| Keywords: | subcritical water alkannin and shikonin response surface methodology optimization |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
