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:李冬梅[1] 李莉[1] 吴五谊[1] 刀志琪[1] 刘光明[1]
出 处:《中国实验方剂学杂志》2013年第1期37-39,共3页Chinese Journal of Experimental Traditional Medical Formulae
基 金:国家自然科学基金项目(30860365)
摘 要:目的:优选云南松松塔总黄酮的提取工艺。方法:采用超声波辅助法提取云南松松塔总黄酮,以总黄酮提取率为指标,考察料液比、提取温度、乙醇体积分数和提取时间对总黄酮提取率的影响,通过正交试验法优选总黄酮的提取工艺。结果:最佳提取工艺为加30倍量60%乙醇于60℃超声辅助提取30 min,云南松松塔总黄酮质量分数3.23%。结论:优选的提取工艺省时、稳定、提取率高。Objective: To optimize extraction technology of total flavonoids in pinecone of Pinus yunrtanensis. Method: Total flavonoids in pinecone of P. yunnanensis were extracted by ultrasonic assisted extraction method, with extraction rate of total flavonoids as index, orthogonal test was applied to investigate influence of four factors (including ratio of material-liquid, ultrasonic extraction temperature, ethanol concentration and extraction time) on extraction technology of total flavonoids from pinecone of P. yunnanensis. Result: Optimum extraction technology was as following: ultrasonic assisted extracted 30 min with 30 times the amount of 60% ethanol at 60 ℃ , the content of total flavonoids in pinecone of P. yunnanensis was 3.23%. Conclusion: Optimized extraction technology was simple and stable with high extraction rate of total flavonoids.
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:216.73.216.28