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1.
大孔吸附树脂法纯化野菊花总黄酮   总被引:5,自引:2,他引:5  
目的确定大孔吸附树脂纯化野菊花总黄酮的工艺。方法采用优选树脂纯化野菊花总黄酮,以分光光度法测定野菊花总黄酮含量。结果AB-8树脂纯化野菊花总黄酮的工艺参数为:原液上样浓度1.2~1.5g/L,最大吸附量为16.8mg/g干树脂,吸附速度为1BV/h,上样2次,吸附时间为0.5h,洗脱剂为50%乙醇,用量为4BV,洗脱速度为4BV/h,树脂可重复使用3次。结论AB-8树脂对野菊花总黄酮具有良好的吸附和纯化性能。  相似文献   

2.
目的:优选大孔吸附树脂纯化鹿衔草总黄酮的最佳工艺。方法:以总黄酮比吸附量、洗脱率为指标,采用静态吸附法对8种大孔吸附树脂进行筛选;以总黄酮吸附量和纯度为指标,进行吸附条件的优化;以总黄酮洗脱率和纯度为指标,对洗脱条件进行考察。结果:选用L S A‐40型大孔吸附树脂,其吸附条件为上样液浓缩至1∶10(g∶mL),上样流速2.5 BV/h ,树脂柱径高比1∶6,上样量按每毫升树脂处理1.0g鹿衔草的提取液,洗脱条件为上样后用5BV水洗脱除去水溶性杂质,2.5BV70%乙醇洗脱,洗脱流速2 B V/h ,纯化后总黄酮的纯度达到22%。结论:该纯化工艺稳定可行,可用于工业生产。  相似文献   

3.
目的:优化大孔树脂吸附法富集锦鹤养心方总黄酮的工艺条件,并研究其对小鼠常压耐缺氧的影响。方法:以芦丁为对照品,硝酸铝显色法检测总黄酮的含量,通过静态吸附/解吸与动态吸附/解吸相结合的方法筛选大孔树脂型号,采用单因素实验考察上样量、上样流速、洗脱流速等对总黄酮纯化工艺的影响;采用常压耐缺氧实验,观察锦鹤养心方总黄酮对小鼠耐缺氧能力的影响。结果:AB-8型大孔树脂对锦鹤养心方总黄酮的纯化效果最好,最佳纯化工艺为上样液质量浓度0.5 g·m L-1,上样流速为2 BV·h-1,上样量为2 BV,吸附4 h,加水1.5 BV洗脱水溶性杂质,加50%乙醇3 BV洗脱,洗脱流速为2 BV·h-1,在此条件下,提取物中总黄酮质量分数由25.01%提高到85.54%;与空白对照组相比,锦鹤养心方总黄酮能明显增加小鼠常压耐缺氧存活时间。结论:AB-8型大孔树脂对锦鹤养心方总黄酮具有良好的纯化效果,优选工艺合理、稳定可行,且锦鹤养心方总黄酮能显著提高小鼠的耐缺氧能力。  相似文献   

4.
目的:研究大孔树脂纯化甘草地上部分水提液中总黄酮的工艺。方法:通过考察D-101、AB-8、DM-130、HPD-BJQH、HPD-600、HPD-100和HPD-450等7种树脂对总黄酮的静态吸附与解吸附,优选适宜类型的大孔树脂,并进一步对富集纯化参数进行考察及优化。结果:选用AB-8型大孔树脂,优选的工艺条件为:上样液质量浓度2.128 mg·m L-1,样品液p H5.42,树脂的上样量为7 m L/g,上样速度为1.5 BV,依次用2 BV水洗脱,4BV60%乙醇洗脱,经AB-8树脂处理后的甘草地上部分水提液的总黄酮纯度由9.08%提升到34.02%,收率为74.40%。结论:AB-8型大孔树脂能有效地纯化富集甘草地上部分水提液总黄酮,且此工艺稳定。  相似文献   

5.
湖北海棠总黄酮纯化工艺研究   总被引:2,自引:0,他引:2  
目的 优化湖北海棠总黄酮分离纯化工艺.方法 以总黄酮含量为评价指标,采用大孔吸附树脂法进行纯化,确定总黄酮纯化工艺条件.结果 湖北海棠总黄酮最佳分离纯化工艺为:选用HPD100型大孔树脂,树脂与药材的质量比为1∶1.74,上样药液浓度为0.15g/ml,上样流速为2BV/h,树脂径高比为1∶10,洗脱时先用4BV水洗除杂,再用4BV70%乙醇洗脱,洗脱速度为1BV/h.结论 纯化工艺简便、可行,适合工业化生产.  相似文献   

6.
目的 优选仙鹤草总黄酮纯化工艺条件.方法 采用大孔吸附树脂法,以总黄酮含量为评价指标,分别对树脂型号、树脂径高比、上样药液浓度、上样药液速度、洗脱液浓度、洗脱剂用量进行考察.结果 优选的纯化工艺条件为选用D101型大孔树脂,上样药液浓度为0.15g/ml,上样速度为1BV/h,树脂径高比为1∶10,洗脱液为3BV 50%乙醇洗脱.固形物中总黄酮含量为31.05%.结论 该纯化工艺条件合理、稳定,可用于工业化生产.  相似文献   

7.
目的研究大孔吸附树脂分离和纯化黄芩总黄酮的工艺条件。方法以总黄酮的吸附量和解吸率为考察指标,对8种不同类型的树脂进行评价。并对优选出的大孔树脂纯化黄芩总黄酮时的工艺条件及参数进行研究。结果AB-8大孔吸附树脂的动态吸附分离效果最好,上样药液浓度为80 mg药材/mL,径高比为1∶8,吸附流速为1 BV/h,除杂溶剂为水,除杂体积为4 BV,除杂流速为1 BV/h,洗脱溶剂为50%乙醇,洗脱体积为8 BV,洗脱流速为1 BV/h。通过大孔吸附树脂分离纯化后,终产品中总黄酮的纯度为88.48%。结论该工艺合理、可行,适合工业生产。  相似文献   

8.
大孔吸附树脂分离纯化白花蛇舌草总黄酮的研究   总被引:4,自引:1,他引:3  
目的 优选大孔吸附树脂法分离纯化白花蛇舌草总黄酮的最佳工艺条件和参数.方法 以白花蛇舌草总黄酮含量及回收率为考察指标,采用单因素考察法对树脂种类、上样溶液浓度、pH值、上样量、洗脱剂浓度、用量和流速等进行考察.结果 最佳纯化工艺参数为:按0.4 g/mL(生药量/树脂量)的上样量配制浓度为0.2 g/mL的上样溶液,调其pH值为5.0,上AB-8型大孔吸附树脂柱,静置1 h,采用去离子水以3 BV/h的流速,洗脱8 BV,然后再用5 BV的70%乙醇洗脱,流速为2 BV/h,所得精制品中总黄酮含量为38.9%,转移率高达80%.结论 AB-8型大孔吸附树脂对白花蛇舌草总黄酮的纯化效果较好,适合工业化大生产.  相似文献   

9.
目的探讨大孔吸附树脂分离纯化绿衣枳壳总黄酮的工艺条件。方法以绿衣枳壳总黄酮含量及回收率为指标,通过考察静态和动态吸附实验,筛选大孔吸附树脂分离纯化绿衣枳壳总黄酮的最佳工艺条件。结果 AB-8大孔树脂纯化效果最好,其最佳工艺为:上样药液总黄酮浓度为0.2 g/mL(生药)用水稀释3倍,调药液pH值为3~4,上样量为药材量∶树脂量=3∶1,以吸附速率为3 BV/h时吸附,然后依次用4 BV的水和4 BV的90%乙醇以2.0 BV/h的速率进行洗脱,弃去水液,收集90%乙醇洗脱液,经AB-8大孔树脂纯化后的绿衣枳壳总黄酮回收率可达95%以上,干膏得率为4.8%,纯化前纯度为33.07%,纯化后为66.81%,是纯化前的近2倍。结论 AB-8大孔吸附树脂综合性能较好,适合于绿衣枳壳总黄酮的分离纯化。  相似文献   

10.
大孔树脂纯化沙苑子总黄酮工艺优选   总被引:1,自引:0,他引:1  
目的:优选大孔吸附树脂纯化沙苑子总黄酮的工艺。方法:考察AB-8、D-101和NKA-9树脂对沙苑子总黄酮的吸附及解吸性能,筛选树脂型号;以总黄酮含量为指标,采用单因素试验和正交试验优选AB-8树脂纯化工艺条件。结果:选用AB-8型大孔吸附树脂,优选的工艺条件为:上样液质量浓度10 mg·m L-1,样品液p H 5.0,上样速度为1.0 m L·min-1,乙醇洗脱浓度40%,洗脱流速为1.5 m L·min-1;经AB-8处理后的沙苑子总黄酮纯度达50%。结论:AB-8型大孔吸附树脂能有效地纯化富集沙苑子总黄酮。  相似文献   

11.
FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…  相似文献   

12.
Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.  相似文献   

13.
In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.  相似文献   

14.
Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.  相似文献   

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目的 探讨猪肺磷脂注射液联合经鼻持续气道正压通气(NCPAP)对呼吸衰竭早产儿的临床疗效及肌酸激酶同工酶活性(CK-MB)的影响.方法 选取呼吸衰竭早产儿80例,分为观察组和对照组各40例.对照组采用NCPAP给氧治疗,观察组给予NCPAP给氧联合猪肺磷脂气管内给药.观察两组患儿治疗前及治疗12h、24 h后PaO2、PaCO2、血氧饱和度(SaO2)、pH的变化情况,检测治疗前及治疗5d后血清CK-MB水平;评估两组患儿的临床治疗效果.结果 两组患儿PaO2、PaCO2、SaO2、pH比较,差异均有统计学意义(P<0.05),其中观察组治疗后的PaO2、SaO2、pH均高于对照组,PaCO2则低于对照组.两组的PaO2、SaO2、pH均随观察时间延长而升高(P<0.05),PaCO2均随观察时间的延长而降低(P<0.05).观察组治疗有效率为87.5%,显著高于对照组的70.0% (P <0.05).治疗5d后两组患儿血清CK-MB水平均较前降低(P<0.05),且观察组明显低于对照组(P<0.05).结论 猪肺磷脂注射液气管内给药联合NCPAP可以显著降低呼吸衰竭早产儿CK-MB的含量,提高治疗有效率,起到很好的呼吸循环支持作用.  相似文献   

17.
Evidence obtained from randomized controlled trials (RCTs) has been generally accepted as the gold standard in the evaluation of clinical effectiveness. Readers need to understand the trial design, implementation, results, analysis and interpretation, so as to fully Jnderstand the results of RCTs. Thus, the investigators of RCTs have to report these items in a complete, accurate and clear manner. Since 1998, we have conducted several evaluations on the reporting quality of RCTs published in Chinese journals on traditional Chinese medicine (TCM) and results have shown that there is an urgent need for higher quality RCTs on TCM.  相似文献   

18.
Ankylosing spondylitis is a chronic and progressive disorder with inflammation mainly involving the central axis joints. It mainly affects the cervical spine and the lumbosacral area, with the pathogenesis closely related to the kidney and the Governor Vessel (GV). TCM holds that the syndrome is deficiency in origin and excess in superficiality, which is due to insufficiency of the kidney, deficiency of GV, and blocking of the channels with the invasion of exogenous evil, leading to poor circulation of qi and blood and malnutrition of the bones, muscles and joints. The TCM method of tonifying the kidney and strengthening GV to regulate circulation of qi and blood and check the arthralgia pain should be adopted, with the Kidney-Tonifying and GV Strengthening Decoction (益肾强督汤) prescribed.  相似文献   

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CHEMOTHERAPY playsa greatrolein the treat- ment of malignanttumors,especiallyingynecolo- gicalones.But inanticancerchemotherapy,leuko-cytopeniaisfrequentlytheprimarydose-limitingsideeffect factor.Moreover,cancersarefrequentlychemoresistantbe-causeof overexpressionof P-glycoprotein(P-gp), which isencodedby multidrugresistancegene (MDR1 ) and detectableinup to50% ofhuman cancersand renderscellsresistancetoanticancerdrugs.The safetyand potentialtherapeuticbenefitof mdr1 gene transferredto h…  相似文献   

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