CN110156567A - 从工业***中提取***二酚(cbd)的新方法 - Google Patents
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Abstract
本发明的目的在于克服常规技术提取率相对较低、提取纯度低等缺点,提供一种利用生物酶解、微波辅助提取藕联超高压纯化***二酚的新方法。具体体现以下几点:1、应用生物酶解技术,使细胞内有效成分充分溶出。2、采用微波预处理,受热时间降低,活性损失少,产品纯度高。3、超高压提取是在常温下进行的,因此避免了因热效应引起的有效成分结构变化、损失以及生理活性降低,同时超高压技术减少杂质成分溶出的同时,提高了有效成分的收率,可使***二酚进一步纯化。本发明利用微波辅助提取与超高压藕联技术,先用乙醇做溶剂经过微波预处理,再用流体静压力大于100的超高压提取,泄压后溶剂可带着有效成分溢出;再经过低温真空干燥,将***二酚提高到90%以上。
Description
技术领域:
本发明属于化工技术领域,涉及一种从工业***中提取***二酚(CBD)的新方法,特别是涉及一种利用生物酶解、微波辅助提取藕联超高压技术纯化***二酚的新方法。
背景技术:
工业***是指四氢***酚含量低于0.3%的***,我国将工业***称为汉麻(hemp),是***科(Cannabinaceae)***属(Cannabis)1年生草本植物。获准合法种植的工业***,均是低含毒量的品种,这些工业***(THC<0.3%)被认为不具备毒品利用价值,但依旧全身是宝,其应用至少包括纺织、造纸、食品、医药、卫生、日化、皮革、汽车、建筑、装饰、包装等领域,是经典的生产资料。
随着美国GWPH(吉瓦制药)公司宣布***二酚治疗癫痫三期临床获得成功,***二酚的药用价值终于得到提现,Epidiolex是目前GW公司研发的主要利用***二酚治疗难治性癫痫候选药物,该口服药物制剂被发展用于治疗一些罕见的儿童期癫痫疾病。***酚是***叶所含的***酚类化合物的一种,是***在贮存过程中,其所含的四氢衍生物被空气氧化而产生的。
自2007年以来,GWPH已进行了广泛的***治疗癫痫的临床前研究,在各种体外和体内模型中,研究结果表明***可显著抗痫和抗惊厥活性;在动物急性癫痫模型中有效减少癫痫发作。迄今为止,GW已经从FDA获得多个针对Epidiolex的孤儿药资格认定,包括Dravet综合征、LGS、结节性硬化症和婴儿痉挛症。此外,GW还获得了FDA的快速通道资格认定,使用Epidiolex治疗Dravet综合征,在本试验中平均年龄16岁,显示了普遍良好耐受性和安全性。
发明内容:
本发明的目的在于克服常规技术提取率相对较低、提取纯度低等缺点,提供一种利用生物酶解、微波辅助提取藕联超高压纯化***二酚的新方法。
为实现上述目的,本发明采用的技术方案是:
一种利用生物酶解、微波辅助提取藕联超高压纯化***二酚的新方法,其步骤如下:
(1)酶解:将新鲜工业***叶、茎或根切段2-3cm左右,放干燥箱内干燥1.5-2小时,取出粉碎,过20-40目筛,采用一定料液比,加入内、外切葡聚糖酶和纤维素酶,三种酶比例为1∶1∶1,酶浓度为0.5-1.5‰,调节pH值,在40-50℃左右酶解1-2h;
(2)微波预处理:用体积浓度75-95%乙醇做为溶剂,采用微波,在200~500W,加热至一定温度提取5-10min;
(3)过滤:静置、将初提液初步过滤,进行分离,初步浓缩得***二酚粗提物;
(4)高压提取:粗提物放入超高压处理袋内,按1∶3料液比加入乙醇溶液,封口包装,以不同压力,加压20-30min,加压两次;
(5)得膏状物:将提取液抽滤、离心得离心液,回收乙醇,浓缩得膏状物;
(6)柱层析:将所得***二酚膏状物上硅胶层析柱,并以不同溶剂进行洗脱,薄层色谱法跟踪检测,收集***二酚各阶段洗脱液;
(7)真空干燥:将所收集的***二酚洗脱液,低温真空干燥得***二酚,其含量在90%以上。
本发明优点:应用生物酶解技术,使细胞内有效成分充分溶出,采用微波预处理的***二酚受热时间降低,超高压技术可使***二酚进一步纯化,本发明提取方便快捷,分离效果明显,提取纯度高。
具体实施方式:
实施例1:一种利用生物酶解、微波辅助提取藕联超高压纯化***二酚的新方法,其步骤如下:
(1)将鲜工业***叶、茎及根切段至2cm,放置干燥箱内干燥1.5小时,取出粉碎,过40目筛,采用1∶5料液比,加入内、外切葡聚糖酶和纤维素酶,三种酶比例为1∶1∶1,酶浓度为0.5‰,调节pH值至4.5,在40℃左右酶解1h;
(2)微波预处理:用75%乙醇做为溶剂,采用微波提取,在功率400W,加热至55℃提取5min;
(3)过滤:静置、将初提液过滤,分离,初步浓缩得***二酚粗提物;
(4)高压提取:粗提物放入超高压处理袋内,按1∶3料液比加入60%乙醇溶液,封口包装,以400MPa,加压20min,加压两次;
(5)得膏状物:将提取液抽滤、离心得离心液,回收乙醇,浓缩得膏状物;
(6)柱层析:将所得***二酚液上硅胶层析柱,并以乙酸乙酯、氯仿体积比5∶1-7∶1进行沈脱,薄层色谱法跟踪检测,收集***二酚各阶段洗脱液;
(7)真空干燥:将所收集的***二酚洗脱液,于50℃低温真空干煤,得***二酚。
实施案例2:一种利用生物酶解、微波辅助提取藕联超高压纯化***二酚的新方法,其步骤如下:
(1)将鲜工业***叶、茎及根切段至2cm,放置干燥箱内干燥2小时,取出粉碎,过20目筛,采用1∶7料液比,加入内、外切葡聚糖酶和纤维素酶,三种酶比例为1∶1∶1,酶浓度为1‰,调节pH值至5.0,在40℃左右酶解1.5h;
(2)微波预处理:用75%乙醇做为溶剂,采用微波提取,在功率300W,加热至60℃提取8min;
(3)过滤:静置、将初提液过滤,分离,初步浓缩得***二酚粗提物;
(4)高压提取:粗提物放入超高压处理袋内,按1∶3料液比加入60%乙醇溶液,封口包装,以600MPa,加压25min,加压两次;
(5)得膏状物:将提取液抽滤、离心得离心液,回收乙醇,浓缩得膏状物;
(6)柱层析:将所得***二酚液上硅胶层析柱,并以乙酸乙酯、氯仿体积比3∶1-5∶1进行洗脱,薄层色谱法跟踪检测,收集***二酚各阶段沈脱液;
(7)真空干燥:将所收集的***二酚洗脱液,于55℃低温真空干燥,得***二酚。
实施案例3:一种利用生物酶解、微波辅助提取藕联超高压纯化***二酚的新方法,其步骤如下:
(1)将鲜工业***叶、茎及根切段至2cm,放置干燥箱内干燥1.5小时,取出粉碎,过40目筛,采用1∶5料液比,加入内、外切葡聚糖酶和纤维素酶,三种酶比例为1∶1∶1,酶浓度为1.5‰,调节pH值至5.5,在40℃左右酶解2h;
(2)微波预处理:用75%乙醇做为溶剂,采用微波提取,在功率500W,加热至50℃提取10min;
(3)过滤:静置、将初提液过滤,分离,初步浓缩得***二酚粗提物;
(4)高压提取:粗提物放入超高压处理袋内,按1∶3料液比加入70%乙醇溶液,封口包装,以500MPa,加压30min,加压两次;
(5)得膏状物:将提取液抽滤、离心得离心液,回收乙醇,浓缩得膏状物;
(6)柱层析:将所得***二酚液上硅胶层析柱,并以乙酸乙酯、氯仿体积比1∶1-3∶1进行洗脱,薄层色谱法跟踪检测,收集***二酚各阶段沈脱液;
(7)真空干燥:将所收集的***二酚洗脱液,于60℃低温真空干燥,得***二酚。
Claims (6)
1.一种利用生物酶解、微波辅助提取藕联超高压纯化***二酚的新方法,其步骤如下:
(1)酶解:将新鲜工业***叶、茎或根切段2-3cm左右,放干燥箱内干燥1.5-2小时,取出粉碎,过20-40目筛,采用一定料液比,加入内、外切葡聚糖酶和纤维素酶,三种酶比例为1∶1∶1,酶浓度为0.5-1.5‰,在40-50℃左右酶解1-2h;
(2)微波预处理:用体积浓度75-95%乙醇做为溶剂,采用微波,在200~500W,加热至一定温度提取5-10min;
(3)过滤:静置、将初提液初步过滤,进行分离,初步浓缩得***二酚粗提物;
(4)高压提取:粗提物放入超高压处理袋内,按1∶3料液比加入乙醇溶液,封口包装,以不同压力,加压20-30min,加压两次;
(5)得膏状物:将提取液抽滤、离心得离心液,回收乙醇,浓缩得膏状物;
(6)柱层析:将所得***二酚膏状物上硅胶层析柱,并以不同溶剂进行洗脱,薄层色谱法跟踪检测,收集***二酚各阶段洗脱液;
(7)真空干燥:将所收集的***二酚洗脱液,低温真空干燥得***二酚,其含量在90%以上。
2.根据权利要求1所述的一种利用生物酶解、微波辅助提取藕联超高压纯化***二酚的新方法,其特征是:在所述的步骤(1)中,酶解时调节pH值在4.5-5.5之间,料液比为1∶5-7。
3.根据权利要求2所述的利用一种利用生物酶解、微波辅助提取藕联超高压纯化***二酚的新方法,其特征是:在所述的步骤(2)中,加热温度为50-60℃。
4.根据权利要求3所述的一种利用生物酶解、微波辅助提取藕联超高压纯化***二酚的新方法,其特征是:在所述的步骤(4)中,超高压力为400-600MPa,乙醇体积浓度为60-70%。
5.根据权利要求4所述的一种利用生物酶解、微波辅助提取藕联超高压纯化***二酚的新方法,其特征是:在所述的步骤(6)中,洗脱时采取的乙醇体积浓度为70%、75%、80%,乙酸乙酯与氯仿的体积为1~7∶1。
6.根据权利要求5所述的一种利用生物酶解、微波辅助提取藕联超高压纯化***二酚的新方法,其特征是:在所述的步骤(7)中,低温干燥温度为50-60℃。
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