检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:王卉[1] 史亚军[1] 邓辉[1] 宋蕊[1] 王媚[1]
出 处:《安徽医药》2015年第10期1853-1856,共4页Anhui Medical and Pharmaceutical Journal
基 金:陕西省科技厅科技攻关项目(No 2013K12-07-03);陕西省中药制药重点学科资助项目(No 303061107);陕西省重点科技创新团队研究项目(No 2013KCT-26)
摘 要:目的确定羟基红花黄色素A的最佳提取工艺,并确立能够表征羟基红花黄色素A提取过程的动力学方程。方法以高效液相法测定不同温度、不同时间提取液中羟基红花黄色素A的含量,以Fick第一扩散定律为基础,建立浸提动力学方程,计算提取的速率常数、活化能等函数值。结果最佳提取工艺为加适量水,在90℃温浸提取60 min,拟合的动力学方程为lnk=-3 263.3(1/T)+6.524 4,该模型能较好地描述红花中羟基红花黄色素A提取的动态过程,活化能为27.13 k J·mol-1。结论红花中羟基红花黄色素A提取过程的动力学符合一级动力学方程特征。Objective To confirm the optimum extraction process of hydroxysafflor yellow A and the kinetic equation that could repre-sent the extraction process of hydroxysafflor yellow A.Methods HPLC was adopted to measure the content of hydroxysafflor yellow A in the extracting solution at different temperatures and different times,and the digestion kinetic equation was established to calculate function values including extracting speed constants and activation energy based on Fick’s first law.Results The optimum extraction process was to add appropriate water and extract for 60 min in the 90 ℃ immersion,and the fitting kinetic equation was lnk =-3 263.3(1 /T)+6.524 4.This model could describe the extracting dynamic procedure of hydroxysafflor yellow A in the carthamus tinctorious better and the activation energy was 27.13 kJ·mol -1 .Conclusion The kinetics in the extraction process of hydroxysafflor yellow A in the carthamus tinctorious accords with first -order kinetic equation characteristics.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:18.118.147.65