CN108096455B - 一种沙参麦冬颗粒的制备方法 - Google Patents

一种沙参麦冬颗粒的制备方法 Download PDF

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CN108096455B
CN108096455B CN201711418655.0A CN201711418655A CN108096455B CN 108096455 B CN108096455 B CN 108096455B CN 201711418655 A CN201711418655 A CN 201711418655A CN 108096455 B CN108096455 B CN 108096455B
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熊富良
胡准
李心愿
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Wuhan Huabenhui Pharmaceutical Development Co ltd
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Abstract

本发明公开了一种沙参麦冬颗粒的制备方法,它是先将北沙参、麦冬、玉竹、天花粉、桑叶、白扁豆、甘草粉碎至一定粒度后,加溶剂浸泡一段时间,然后再进行超高压提取,最后将提取液浓缩成稠膏并加入辅料制粒。采用本发明的方法,与现有的提取方法相比,能够提高提取物中活性成分含量,减少杂质;同时还能提高活性成分的转移率,使提取更加充分,采用该方法制备的沙参麦冬颗粒具有更好的药效活性。

Description

一种沙参麦冬颗粒的制备方法
技术领域
本发明属于制药领域,具体涉及沙参麦冬颗粒的制备方法。
背景技术
清代著名医家吴鞠通所著的《温病条辨》记载了一种治疗咳嗽的中药——沙参麦冬汤,它由沙参、玉竹、生甘草、冬桑叶、麦冬、生扁豆、天花粉7味药物组成,方中沙参、麦冬清养肺胃,玉竹、花粉生津解渴,生扁豆、生甘草益气培中、甘缓和胃,配以桑叶,轻宣燥热,合而成方,有清养肺胃、生津润燥之功,临床用于燥伤肺胃阴分,津液亏损,咽干口渴,干咳痰少而粘,或发热,脉细数,舌红少苔者。
CN 103432386A公开了一种治疗咳嗽的中药制剂,它是在沙参麦冬汤的基础上,将七味药材先用水或乙醇提取,然后将提取液上大孔吸附树脂柱精制后再加入辅料制成剂型。该方法可以富集沙参麦冬汤中的有效成分,减少无效成分,从而提高药物疗效,降低副作用和减少服用剂量,提高用药依从性。但是,由于该发明在提取的过程中采用了大孔树脂吸附工艺,导致产品的生产周期太长,成本过高,而且在精制除杂的过程中也损失了大量的有效成分,虽然提取物中的有效成分含量很高但是转移率很低,从而导致原料浪费进一步增加了成本。
随着中药提取技术的不断进步,越来越多的新方法如超临界二氧化碳萃取、超声辅助提取、微波提取、超声波-微波协同萃取、超高压提取等被用于中药活性成分的提取中。但是,直到目前尚未见采用超高压方法提取沙参麦冬汤的报道。
超高压提取也称超高冷等静压提取,是指用100-1000MPa的超高流体静压力作用于提取溶剂和中药材的混合液上,并在预定压力下保持一段时间,使植物细胞内外压力达到平衡后在极短的时间内迅速卸压。在反向压力的作用下,药材基质体积发生***膨胀,植物细胞内外渗透压力忽然增大,细胞膜的结构发生变化,使得细胞内的有效成分能够迅速穿过细胞膜而转移到细胞外的提取溶剂中,达到提取中药有效成分的目的。与其它提取方式相比,超高压提取具有温度低、时间短、效率高等优点。
发明内容
本发明的目的是提供一种沙参麦冬颗粒的制备方法,该方法采用超高压提取药材中的活性成份,具有提取效率高、杂质少等优点。
本发明提供的方法包括以下步骤:
1)取北沙参15~30份、麦冬10~20份、玉竹3~15份、天花粉5~20份、桑叶15~30份、白扁豆5~20份、甘草5~25份,将以上药材一起粉碎至20-80目粒度的粉末,然后按药材总重量的5-20倍加溶剂浸泡0.5-3小时,再将药材和溶剂一起装入塑料袋中密封,放入超高压提取装置的提取容器中,在常温下进行超高压提取;
2)将塑料袋从提取容器中取出,倒出物料,过滤,离心,将提取液浓缩成稠膏;
3)向稠膏中加入辅料,制成适合临床上使用的剂型。
在提取前将药材粉碎至20-80目,这是因为,粒径过大,溶剂在超高压力下不容易透过药材渗入到组织细胞,活性成分与溶剂的接触减少,导致提取效率降低;反之,如果粒径过小,则在活性成分溶出增加的同时,药材组织、淀粉、鞣质等杂质类成分的溶出也会增加,反而会导致提取物中的活性成分含量降低。
在提取前将药材先用5-20倍加溶剂浸泡0.5-3小时,使活性成分与溶剂在超高压提取时更好达到溶解平衡,有利于促进活性成份的溶出,提高提取效率,溶剂太多则会增加成本。
优选地,所述超高压提取的压强为200-700Mpa。压力越高,则溶剂浸润和活性成分的传递速度越快,同时还会影响溶剂密度、活度和药材基块结构,使活性成分的溶出速度加快,溶出量增加;但是如果压力过高,同样会使杂质类成分的溶出增加,对提取反而不利而且会增加成本。
优选地,所述超高压提取的泄压时间为10-30s。药材组织细胞的压力从几百兆帕的超高压迅速减为常压,在反向压力的作用下,发生流体以及药材基质体积的***膨胀,对药材组织形成强烈的冲击致使发生形变,同时细胞结构出现松散、孔洞、破裂,使药材成分与溶剂充分接触并向外迅速扩散。因此,理论上泄压时间应该越短越好,但如果时间过短,则会导致药材组织细胞等大量无效成分溶出,对提取反而不利。
优选地,所述超高压提取的次数为1-5次,提取次数越多,提取的活性成分越充分,次数过多则会导致杂质提取增加,同时也不利于降低成本。
本发明中所涉及的乙醇浓度均为体积浓度,如10-50%乙醇指的是每100ml乙醇水溶液中含有乙醇10-50ml。
本发明的有益效果是:
1)与煎煮法相比,采用超高压提取制备的沙参麦冬颗粒具有更高的活性成份含量,相应杂质含量更低,从而有利于提高药效降低副作用;同时还有利于提高活性成份的转移率,说明活性成份的提取更加充分,从而有利于合理利用药材资源降低生产成本。
2)大孔树脂吸附工艺虽然更有利于提高活性成份含量,但是在精制除杂的过程中也伴随损失了大量的活性成分,导致药材利用率降低,生产周期过长,生产成本偏高,而采用本发明制备工艺不仅能大幅缩短生产周期,还能更合理地利用药材资源,降低生产成本。
3)与常规的热回流、煎煮等提取方法相比,本发明在较低的温度(室温)下进行,从而减少了能源消耗以及活性成分破坏,药效试验结果表明,本发明制得的药物与现有的沙参麦冬颗粒相比具有更好的止咳、化痰活性。
具体实施方式
下面通过具体实施例对本发明进行详细地说明。
实施例1
处方:北沙参30Kg、麦冬20Kg、玉竹10Kg、天花粉15Kg、桑叶30Kg、白扁豆15Kg、甘草15Kg
制法:1)按配比称取以上七味药材并一起粉碎至50目粒度的粉末,然后按药材总重量的15倍加20%乙醇浸泡1.5小时,再将药材和乙醇一起装入塑料袋中密封,放入超高压提取装置的提取容器中,在常温下进行超高压提取,提取程序如下:
A升压阶段:将提取容器内的压强升高到500Mpa;
B保压阶段:保持压强30min;
C泄压阶段:迅速将压强泄为常压,泄压时间为12s;
D重复A-C 2次;
2)将塑料袋从提取容器中取出,倒出物料,过滤,离心,将提取液浓缩成相对密度为1.35的稠膏;
3)按稠膏重量,向稠膏中加入3份糖粉、1份糊精,混匀,制粒,干燥,制成颗粒剂。
实施例2
处方:与实施例1的处方相同。
制法:1)按配比称取以上七味药材并一起粉碎至80目粒度的粉末,然后按药材总重量的10倍加水浸泡1小时,再将药材和水一起装入塑料袋中密封,放入超高压提取装置的提取容器中,在常温下进行超高压提取,提取程序如下:
A升压阶段:将提取容器内的压强升高到300Mpa;
B保压阶段:保持压强15min;
C泄压阶段:迅速将压强泄为常压,泄压时间为15s;
D重复A-C 3次;
2)将塑料袋从提取容器中取出,倒出物料,过滤,离心,将提取液浓缩成稠膏;
3)向稠膏中加入糖粉、糊精,混匀,制粒,制成颗粒剂。
实施例3
处方:与实施例1的处方相同。
制法:1)按配比称取以上七味药材并一起粉碎至60目粒度的粉末,然后按药材总重量的6倍加10%乙醇浸泡3小时,再将药材和乙醇一起装入塑料袋中密封,放入超高压提取装置的提取容器中,在常温下进行超高压提取,提取程序如下:
A升压阶段:将提取容器内的压强升高到600Mpa;
B保压阶段:保持压强60min;
C泄压阶段:迅速将压强泄为常压,泄压时间为10s;
D重复A-C 4次;
2)将塑料袋从提取容器中取出,倒出物料,过滤,离心,将提取液浓缩成稠膏;
3)向稠膏中加入糖粉、糊精,混匀,制粒,制成颗粒剂。
实施例4
处方:与实施例1的处方相同。
制法:1)按配比称取以上七味药材并一起粉碎至30目粒度的粉末,然后按药材总重量的20倍加50%乙醇浸泡0.5小时,再将药材和乙醇一起装入塑料袋中密封,放入超高压提取装置的提取容器中,在常温下进行超高压提取,提取程序如下:
A升压阶段:将提取容器内的压强升高到200Mpa;
B保压阶段:保持压强40min;
C泄压阶段:迅速将压强泄为常压,泄压时间为20s;
2)将塑料袋从提取容器中取出,倒出物料,过滤,离心,将提取液浓缩成稠膏;
3)向稠膏中加入糖粉、糊精,混匀,制粒,干燥,即得。
实施例5
处方:与实施例1的处方相同。
制法:1)按配比称取以上七味药材并一起粉碎至20目粒度的粉末,然后按药材总重量的12倍加30%乙醇浸泡2小时,再将药材和乙醇一起装入塑料袋中密封,放入超高压提取装置的提取容器中,在常温下进行超高压提取,提取程序如下:
A升压阶段:将提取容器内的压强升高到400Mpa;
B保压阶段:保持压强20min;
C泄压阶段:迅速将压强泄为常压,泄压时间为30s;
D重复A-C 1次;
2)将塑料袋从提取容器中取出,倒出物料,过滤,离心,将提取液浓缩成稠膏;
3)向稠膏中加入糖粉、糊精,混匀,制粒,干燥,即得。
试验例1
取实施例1-5步骤2)中的部分稠膏,干燥至恒重,称重,根据步骤2)中的稠膏总量折算成总提取干膏量;采用HPLC法检测干膏中活性成分麦冬皂苷D、绿原酸、甘草酸的含量,根据干膏总量和药材中的含量计算活性成分的转移率,计算公式如下:
Figure BDA0001522522680000051
Figure BDA0001522522680000052
其中,麦冬药材中麦冬皂苷D的含量为0.024%,桑叶药材中绿原酸的含量为0.80%,甘草药材中甘草酸的含量为0.88%。
同时,按实施例1的处方,采用常规的加水煎煮提取,将提取液浓缩干燥后作为对比例1;按实施例1的处方,采用CN 103432386A实施例2的方法提取,将提取液浓缩干燥后作为对比例2。
表1提取干膏量和活性成份含量
Figure BDA0001522522680000053
Figure BDA0001522522680000061
表2提取的活性成份转移率
Figure BDA0001522522680000062
从以上结果可以看出,与常规的水煎煮提取相比,采用超高压提取能大幅提高活性成份的含量和麦冬皂苷D、甘草酸的转移率,说明提取更加充分且杂质更少;与大孔树脂吸附工艺相比,本发明能大幅提高活性成份的转移率,从而能充分地利用药材资源降低生产成本。

Claims (1)

1.一种沙参麦冬颗粒的制备方法,其特征在于包括以下步骤:
1)取北沙参15~30份、麦冬10~20份、玉竹3~15份、天花粉5~20份、桑叶15~30份、白扁豆5~20份、甘草5~25份,将以上药材一起粉碎至50目粒度的粉末,然后按药材总重量的15倍加20%乙醇浸泡1.5小时,再将药材和溶剂一起装入塑料袋中密封,放入超高压提取装置的提取容器中,在常温下进行超高压提取;
2)将塑料袋从提取容器中取出,倒出物料,过滤,离心,将提取液浓缩成稠膏;
3)向稠膏中加入辅料,制粒后干燥,即得,
所述超高压提取的压强为500Mpa,
所述超高压提取的泄压时间为12s,
所述超高压提取的次数为3次。
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103230517A (zh) * 2013-04-19 2013-08-07 康美药业股份有限公司 一种沙参麦冬汤配方颗粒及其制备方法和检测方法
CN103432386A (zh) * 2013-08-19 2013-12-11 湖北丽益医药科技有限公司 一种治疗咳嗽的中药制剂及其制备方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103230517A (zh) * 2013-04-19 2013-08-07 康美药业股份有限公司 一种沙参麦冬汤配方颗粒及其制备方法和检测方法
CN103432386A (zh) * 2013-08-19 2013-12-11 湖北丽益医药科技有限公司 一种治疗咳嗽的中药制剂及其制备方法

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