Objective:To optimize the extraction process of total flavones in Trichosanthis Fructus(composed of Trichosanthis pericarpium and Trichosanthis semen in certain proportion).Methods:The effects of the mixture ratio of ...Objective:To optimize the extraction process of total flavones in Trichosanthis Fructus(composed of Trichosanthis pericarpium and Trichosanthis semen in certain proportion).Methods:The effects of the mixture ratio of Trichosanthis pericarpium and Trichosanthis semen,ethanol concentration,ultrasonic extraction time and extraction temperature on the extraction rate of total flavonoids in Trichosanthis Fructus were investigated.The extraction process of total flavonoids in Trichosanthis Fructus was optimized by Box-Behnken response surface method combined with differential spectrophotometry.Results:The optimum extraction conditions of total flavonoids in Trichosanthis Fructus were as follows:The mixture ratio of Trichosanthis pericarpium and Trichosanthis semen was 4:6,the ethanol concentration was 70%,the ultrasonic extraction time was 60min and the extraction temperature was 40℃.Conclusion:Box-Behnken response surface method combined with differential spectrophotometry can optimize the extraction process of total flavonoids from Trichosanthis Fructus,which can provide reference for the extraction and application of total flavonoids in Trichosanthis Fructus.展开更多
目的初步阐释木蝴蝶总黄酮抗肝肿瘤的作用机制,为木蝴蝶总黄酮作为抗肝癌药物的开发和临床应用提供实验依据。方法采用二乙基亚硝胺(DEN)诱发大鼠肝癌模型,随机分为空白组,模型组,阳性对照组,木蝴蝶总黄酮高、中、低剂量组,从造模第6周...目的初步阐释木蝴蝶总黄酮抗肝肿瘤的作用机制,为木蝴蝶总黄酮作为抗肝癌药物的开发和临床应用提供实验依据。方法采用二乙基亚硝胺(DEN)诱发大鼠肝癌模型,随机分为空白组,模型组,阳性对照组,木蝴蝶总黄酮高、中、低剂量组,从造模第6周开始给药,每日1次,连续10周。第17周眼球取血,分离各组血浆。采用HPLC-QTOF-MS联用技术分析木蝴蝶总黄酮干预后各组大鼠血浆中代谢物的变化,利用Agilent Mass Profiler Professional 12.6软件结合相关数据库进行主成分分析(PCA)、差异代谢物分析及代谢通路分析。结果与模型组比较,木蝴蝶总黄酮干预后共有285种代谢物发生变化,其中上调的有41种,下调的有244种。主要与色氨酸代谢、丝氨酸代谢、胆汁酸合成、花生四烯酸代谢、亚油酸代谢等途径有关。结论木蝴蝶总黄酮发挥抗肝肿瘤作用可能与调节氨基酸代谢、脂肪酸代谢、胆汁酸合成等代谢途径有关。展开更多
目的利用自主研发的全时段多波长融合软件,建立中药木蝴蝶有效组分的指纹图谱。方法采用高效液相色谱法,Eclipse Plus C_(18)色谱柱(2.1 mm×100 mm,1.8μm),0.1%甲酸水溶液(A),流动相为乙腈(B),进行梯度洗脱(0~10 min,15%~57%B;10~...目的利用自主研发的全时段多波长融合软件,建立中药木蝴蝶有效组分的指纹图谱。方法采用高效液相色谱法,Eclipse Plus C_(18)色谱柱(2.1 mm×100 mm,1.8μm),0.1%甲酸水溶液(A),流动相为乙腈(B),进行梯度洗脱(0~10 min,15%~57%B;10~15 min,57%~65%B),柱温:30℃,检测波长:256、280、300、320 nm,流速为0.4 m L·min^(-1)。结果不同产地的中药木蝴蝶指纹图谱与参照图谱相比相似度均>0.9,但是各产地有一定的差异性,根据聚类分析大体可分为3类,其中大理、广西、亳州、四川为一类,昆明、贵州为一类,丽江、湖南为一类。结论建立了中药木蝴蝶有效组分全时段多波长融合指纹图谱,经方法学考察,该方法简便、准确、重复性好,可以为中药木蝴蝶的质量控制提供依据。展开更多
AIM: To determine the total flavonoids in \%Semen Ziziphi Spinosae.\% METHOD: Using detection wavelength at 335 nm and spinosin as standard, a simple and reproducible UV spectrophotometry was developed to determine to...AIM: To determine the total flavonoids in \%Semen Ziziphi Spinosae.\% METHOD: Using detection wavelength at 335 nm and spinosin as standard, a simple and reproducible UV spectrophotometry was developed to determine total flavonoids in \%Semen Ziziphi Spinosae\% from different sources. CONCLUSION: This method proved to be feasible for evaluating the quality of \%Semen Ziziphi Spinosae\%.展开更多
基金Anhui Universities Provincial Key Project of Natural Science Research(No.KJ2016SD60,KJ2015ZD41)。
文摘Objective:To optimize the extraction process of total flavones in Trichosanthis Fructus(composed of Trichosanthis pericarpium and Trichosanthis semen in certain proportion).Methods:The effects of the mixture ratio of Trichosanthis pericarpium and Trichosanthis semen,ethanol concentration,ultrasonic extraction time and extraction temperature on the extraction rate of total flavonoids in Trichosanthis Fructus were investigated.The extraction process of total flavonoids in Trichosanthis Fructus was optimized by Box-Behnken response surface method combined with differential spectrophotometry.Results:The optimum extraction conditions of total flavonoids in Trichosanthis Fructus were as follows:The mixture ratio of Trichosanthis pericarpium and Trichosanthis semen was 4:6,the ethanol concentration was 70%,the ultrasonic extraction time was 60min and the extraction temperature was 40℃.Conclusion:Box-Behnken response surface method combined with differential spectrophotometry can optimize the extraction process of total flavonoids from Trichosanthis Fructus,which can provide reference for the extraction and application of total flavonoids in Trichosanthis Fructus.
文摘目的初步阐释木蝴蝶总黄酮抗肝肿瘤的作用机制,为木蝴蝶总黄酮作为抗肝癌药物的开发和临床应用提供实验依据。方法采用二乙基亚硝胺(DEN)诱发大鼠肝癌模型,随机分为空白组,模型组,阳性对照组,木蝴蝶总黄酮高、中、低剂量组,从造模第6周开始给药,每日1次,连续10周。第17周眼球取血,分离各组血浆。采用HPLC-QTOF-MS联用技术分析木蝴蝶总黄酮干预后各组大鼠血浆中代谢物的变化,利用Agilent Mass Profiler Professional 12.6软件结合相关数据库进行主成分分析(PCA)、差异代谢物分析及代谢通路分析。结果与模型组比较,木蝴蝶总黄酮干预后共有285种代谢物发生变化,其中上调的有41种,下调的有244种。主要与色氨酸代谢、丝氨酸代谢、胆汁酸合成、花生四烯酸代谢、亚油酸代谢等途径有关。结论木蝴蝶总黄酮发挥抗肝肿瘤作用可能与调节氨基酸代谢、脂肪酸代谢、胆汁酸合成等代谢途径有关。
文摘目的利用自主研发的全时段多波长融合软件,建立中药木蝴蝶有效组分的指纹图谱。方法采用高效液相色谱法,Eclipse Plus C_(18)色谱柱(2.1 mm×100 mm,1.8μm),0.1%甲酸水溶液(A),流动相为乙腈(B),进行梯度洗脱(0~10 min,15%~57%B;10~15 min,57%~65%B),柱温:30℃,检测波长:256、280、300、320 nm,流速为0.4 m L·min^(-1)。结果不同产地的中药木蝴蝶指纹图谱与参照图谱相比相似度均>0.9,但是各产地有一定的差异性,根据聚类分析大体可分为3类,其中大理、广西、亳州、四川为一类,昆明、贵州为一类,丽江、湖南为一类。结论建立了中药木蝴蝶有效组分全时段多波长融合指纹图谱,经方法学考察,该方法简便、准确、重复性好,可以为中药木蝴蝶的质量控制提供依据。
文摘AIM: To determine the total flavonoids in \%Semen Ziziphi Spinosae.\% METHOD: Using detection wavelength at 335 nm and spinosin as standard, a simple and reproducible UV spectrophotometry was developed to determine total flavonoids in \%Semen Ziziphi Spinosae\% from different sources. CONCLUSION: This method proved to be feasible for evaluating the quality of \%Semen Ziziphi Spinosae\%.