目的优化红花中脱水红花黄色素B的酶解提取工艺。方法单因素试验确定响应面分析的自变量,Box-Behnken中心组合设计建立数学模型,以脱水红花黄色素B提取率为响应值,绘制响应面和等高线图。结果最佳条件为果胶酶用量0.4%,酶解温度49℃,酶...目的优化红花中脱水红花黄色素B的酶解提取工艺。方法单因素试验确定响应面分析的自变量,Box-Behnken中心组合设计建立数学模型,以脱水红花黄色素B提取率为响应值,绘制响应面和等高线图。结果最佳条件为果胶酶用量0.4%,酶解温度49℃,酶解时间40 min,酶解p H 5.2,提取率0.245%。结论该模型合理可靠,可用于工艺优化。展开更多
Safflower is a popular Chinese medicinal plant and Safflower injection is extensively used for the clinical treatment of cerebrovascular and cardiovascular diseases. In this study, HPLC-DAD-ESI-MSn was utilized to stu...Safflower is a popular Chinese medicinal plant and Safflower injection is extensively used for the clinical treatment of cerebrovascular and cardiovascular diseases. In this study, HPLC-DAD-ESI-MSn was utilized to study the stability and degradation of the two major but chemically unstable bioactive compounds hydroxysaffior yellow A and anhydrosaffior yellow B, in Safflower injection. The impact of light irradiation, temperature, and pH on the stability of these two compounds were studied. The results showed that hydroxysafflor yellow A and anhydrosafflor yellow B could degrade at high temperature (〉60 ℃) or extreme pHs (pH ≤ 3.0 or 〉7.0), but not under light irradiation. The common degradation product was p-coumaric acid. Chemical structures of the other degradation products were characterized by LC-MS. Hypothetical degradation pathways were proposed. In addition, ADP-induced platelet aggregation tests showed that the degradation of anhydrosaffior yellow B could reduce the anticoagulation activities of Safflower injection. Our results suggest that temperature and pH are critically important for the preparation and storage of Safflower injection.展开更多
文摘目的优化红花中脱水红花黄色素B的酶解提取工艺。方法单因素试验确定响应面分析的自变量,Box-Behnken中心组合设计建立数学模型,以脱水红花黄色素B提取率为响应值,绘制响应面和等高线图。结果最佳条件为果胶酶用量0.4%,酶解温度49℃,酶解时间40 min,酶解p H 5.2,提取率0.245%。结论该模型合理可靠,可用于工艺优化。
基金Changjiang Scholar and Innovative Research Team in University (Grant No. 985-2-063-112)Youth Research Fellowship of Chinese Center for Disease Control and Prevention (Grant No. 2009A203)
文摘Safflower is a popular Chinese medicinal plant and Safflower injection is extensively used for the clinical treatment of cerebrovascular and cardiovascular diseases. In this study, HPLC-DAD-ESI-MSn was utilized to study the stability and degradation of the two major but chemically unstable bioactive compounds hydroxysaffior yellow A and anhydrosaffior yellow B, in Safflower injection. The impact of light irradiation, temperature, and pH on the stability of these two compounds were studied. The results showed that hydroxysafflor yellow A and anhydrosafflor yellow B could degrade at high temperature (〉60 ℃) or extreme pHs (pH ≤ 3.0 or 〉7.0), but not under light irradiation. The common degradation product was p-coumaric acid. Chemical structures of the other degradation products were characterized by LC-MS. Hypothetical degradation pathways were proposed. In addition, ADP-induced platelet aggregation tests showed that the degradation of anhydrosaffior yellow B could reduce the anticoagulation activities of Safflower injection. Our results suggest that temperature and pH are critically important for the preparation and storage of Safflower injection.