目的探讨超声技术对六味地黄丸复方提取效果的影响,并筛选出最佳提取工艺,确定超声提取中药复方的适应范围。方法以干膏收率、丹皮酚、总多糖为指标,对六味地黄丸复方进行超声提取正交实验,筛选出最佳提取工艺条件,并与传统提取方法回...目的探讨超声技术对六味地黄丸复方提取效果的影响,并筛选出最佳提取工艺,确定超声提取中药复方的适应范围。方法以干膏收率、丹皮酚、总多糖为指标,对六味地黄丸复方进行超声提取正交实验,筛选出最佳提取工艺条件,并与传统提取方法回流进行比较研究。结果最佳提取工艺为A2B2C2D1E3F2,即用10倍量初始温度为60℃的60%乙醇超声提取2次,30 m in/次,超声频率为25kHz。结论所筛选出的最佳提取工艺合理、可行;超声提取技术能适用于含有多糖类成分的中药复方药材,具有省时、省工、提取率高等特点。展开更多
It is particularly important and necessary to try to make intensive course interesting and effective for the students. Their study will be-come a lot more effective if the students come to the classroom willingly inst...It is particularly important and necessary to try to make intensive course interesting and effective for the students. Their study will be-come a lot more effective if the students come to the classroom willingly instead of being forced to. That is to say, how a teacher can succeed in arousing the students'interest in intensive course and making the students more active and aggressive in thinking, listening and speaking. For this purpose, we should change the teacher dominated class for a student-centered one.展开更多
文摘目的探讨超声技术对六味地黄丸复方提取效果的影响,并筛选出最佳提取工艺,确定超声提取中药复方的适应范围。方法以干膏收率、丹皮酚、总多糖为指标,对六味地黄丸复方进行超声提取正交实验,筛选出最佳提取工艺条件,并与传统提取方法回流进行比较研究。结果最佳提取工艺为A2B2C2D1E3F2,即用10倍量初始温度为60℃的60%乙醇超声提取2次,30 m in/次,超声频率为25kHz。结论所筛选出的最佳提取工艺合理、可行;超声提取技术能适用于含有多糖类成分的中药复方药材,具有省时、省工、提取率高等特点。
文摘It is particularly important and necessary to try to make intensive course interesting and effective for the students. Their study will be-come a lot more effective if the students come to the classroom willingly instead of being forced to. That is to say, how a teacher can succeed in arousing the students'interest in intensive course and making the students more active and aggressive in thinking, listening and speaking. For this purpose, we should change the teacher dominated class for a student-centered one.