CN107242999A - 一种固体多重自乳化载体及其制备方法 - Google Patents
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Abstract
本发明公开了一种固体多重自乳化载体及其制备方法,该种固体多重自乳化载体的组分包括改性聚合乳化剂、非离子型乳化剂、液态油脂、油溶性活性物、水溶性活性物、固体吸附剂和水。本发明的制备方法作为一种新的制剂技术,联合使用多重乳液,自乳化和固体吸附技术,即未添加多重乳液的外水相,而是直接将非离子型乳化剂加入第二步形成的初乳中,形成的液态多重自乳化载体,较传统的多重乳液更加稳定。之后又将液态多重自乳化载体与固体吸附剂混合,形成固体多重自乳化载体进一步提高其稳定性。本发明的固体多重自乳化载体可以作为原料,直接用于相关剂型的生产,包括颗粒剂、片剂和胶囊剂,可有效解决现有的应用缺陷。
Description
技术领域
本发明属于活性物载体技术领域,具体涉及一种固体多重自乳化载体及其制备方法。此类组合物可用于递送在产品中活性物,亦可用于颗粒剂、片剂或胶囊剂等多种类型产品的制备。
背景技术
水包油包水(W/O/W)型乳液在各种行业,包括药品、食品和化妆品等行业的研究中已表现出重要性,其中该型乳液同时包含水相和油相,可用来配制极性不同的两种或更多的化合物。同样,其可通过将化合物加入内水相中免于空气的氧化,用于递送易被氧化的水溶性化合物。
尽管该型乳液具有以上的优点,但是由于W/O/W乳液是热力学不稳定体系,目前研究采用许多方法用来增加其稳定性,包括增加油相的粘度和硬度、使用高分子聚合物乳化剂、增加内水相的粘度等,但是到迄今为止还没有任何的W/O/W乳液被广泛使用。造成W/O/W乳液不稳定主要包括以下四种机制:
a)内水相的互相融合;
b)油相的互相融合;
c)油膜的破裂从而导致内水相的泄露;
d)外水相与内水相可穿透油膜进行交互。
尽管大量研究显示W/O/W乳液有保护活性物,促进活性物吸收等优点,但是稳定性依然是值得优化的重要部分。
发明内容
本发明的目的在于提供一种固体多重自乳化载体及其制备方法,可在保持W/O/W乳液原有优点的同时,又能明显增加其稳定性。
为实现上述技术目的,达到上述技术效果,本发明通过以下技术方案实现:
一种固体多重自乳化载体,所述载体口服后,通过人体胃部的蠕动,可自乳化形成水包油包水型乳液,按质量百分比(%w/w),所述载体包括以下组分:
改性聚合乳化剂 1~8%;
非离子型乳化剂 5~7%;
液态油脂 10~20%;
油溶性活性物 1%;
水溶性活性物 0~2%;
固体吸附剂 40~60%
水 15~30%。
进一步的,所述改性的聚合乳化剂选自十聚甘油单月桂酸酯、六聚甘油单月桂酸酯或聚氧乙烯失水山梨醇脂肪酸酯中的一种或几种。
进一步的,所述液态油脂为天然或合成的油脂。
进一步的,所述液态油脂选择自玉米油、椰子油、芦荟油或甘油中一种或几种。
进一步的,所述油溶性活性物选自白藜芦醇、虾青素或槲皮素中的一种或几种。
进一步的,所述水溶性活性物选自抗坏血酸或茶多酚中的一种或二者的混合物。
进一步的,所述固体吸附剂选择自由无水磷酸氢钙、高成型微晶纤维素802、硅酸铝镁或介孔硅中的一种或几种。
一种固体多重自乳化载体的制备方法,包括如下步骤:
步骤1)将油溶性活性物、液态油脂与改性聚合物乳化剂在室温下充分混合并搅拌均匀,作为油相;将水溶性活性物加入到水中,充分混合并搅拌均匀,作为水相,或将水直接作为水相;
步骤2)在油相中加入水相,预乳化混合均匀后,将混合物进行超声乳化、高剪切分散或高压均质形成初乳;
步骤3)在初乳中加入非离子型乳化剂,搅拌均匀,得到液态的多重自乳化载体。
步骤4)将液态的多重自乳化载体与固体吸附剂充分混合后,得到固体多重自乳化载体。
本发明的有益效果是:
本发明作为一种新的制剂技术,联合使用多重乳液,自乳化和固体吸附技术,即未添加多重乳液的外水相,而是直接将非离子型乳化剂加入第二步形成的初乳中,形成的液态多重自乳化载体,较传统的多重乳液更加稳定。之后又将液态多重自乳化载体与固体吸附剂混合,形成固体多重自乳化载体进一步提高其稳定性。通过本发明方法得到的固体多重自乳化载体可以作为原料,直接用于相关剂型的生产,包括颗粒剂、片剂和胶囊剂,可有效解决现有的应用缺陷。
上述说明仅是本发明技术方案的概述,为了能够更清楚了解本发明的技术手段,并可依照说明书的内容予以实施,以下以本发明的较佳实施例并配合附图详细说明如后。本发明的具体实施方式由以下实施例及其附图详细给出。
附图说明
此处所说明的附图用来提供对本发明的进一步理解,构成本申请的一部分,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。在附图中:
图1为本发明固体多重自乳化载体的制备方法流程图。
具体实施方式
下面将参考附图并结合实施例,来详细说明本发明。
一种固体多重自乳化载体,所述载体口服后,通过人体胃部的蠕动,可自乳化形成水包油包水型乳液,按质量百分比(%w/w),所述载体包括以下组分:
改性聚合乳化剂 1~8%;
非离子型乳化剂 5~7%;
液态油脂 10~20%;
油溶性活性物 1%;
水溶性活性物 0~2%;
固体吸附剂 40~60%
水 15~30%。
进一步的,所述改性的聚合乳化剂选自十聚甘油单月桂酸酯、六聚甘油单月桂酸酯或聚氧乙烯失水山梨醇脂肪酸酯中的一种或几种。
进一步的,所述液态油脂为天然或合成的油脂。
进一步的,所述液态油脂选择自玉米油、椰子油、芦荟油或甘油中一种或几种。
进一步的,所述油溶性活性物选自白藜芦醇、虾青素或槲皮素中的一种或几种。
进一步的,所述水溶性活性物选自抗坏血酸或茶多酚中的一种或二者的混合物。
进一步的,所述固体吸附剂选择自由无水磷酸氢钙、高成型微晶纤维素802、硅酸铝镁或介孔硅中的一种或几种。
本发明的固体多重自乳化载体,可以采用多种实施方式进行制备。以下实施例中所采用的实施条件可以根据具体厂家的条件做进一步调整,未注明的实施条件通常为常规实验中的条件。
实施例1
本实施例的配方如下:
参见图1所示,本实施例的制备步骤如下:
步骤1)称取1g茶多酚和20g去离子水,搅拌使其完全溶解并搅拌均匀,形成含活性物的水溶液,作为水相;
称取1g白藜芦醇,15g玉米油,6g聚甘油蓖麻醇脂,搅拌使其完全溶解并搅拌均匀,作为油相;
步骤2)将水相缓缓倒入油相内,同时进行搅拌10分钟,混合均匀后,16000rpm高剪切5分钟;
步骤3)向步骤2)得到的混合物中投入7g十聚甘油单月桂酸酯,搅拌使其混合均匀得到负载活性物的液态多重自乳化载体;
步骤4)取50g无水磷酸氢钙与液态多重自乳化载体充分混合后过筛,得到固态多重自乳化载体。
将固态多重自乳化载体分散在去离子水中,该分散液通过粒度仪测得其平均粒径为18.22μm,光学显微镜观察有多重球形结构。
实施例2
本实施例的配方如下:
参见图1所示,本实施例的制备步骤如下:
步骤1)称取2g抗坏血酸和20g去离子水,机械搅拌使其完全溶解,形成含活性物的水溶液,作为水相;
称取1g槲皮素,15g椰油,5g甘油,5g聚甘油蓖麻醇脂, 70℃水浴加热并搅拌使其完全溶解并搅拌均匀,作为油相;
步骤2)将水相缓缓倒入油相内,同时进行搅拌10分钟,混合均匀,600bar高压均质3个循环;
步骤3)向步骤2得到混合物中继续投入7g 聚氧乙烯失水山梨醇脂肪酸酯,并搅拌混合均匀得到负载活性物液态多重自乳化载体;
步骤4)取45g硅酸铝镁与液态多重自乳化载体充分混合后过筛,得到固态多重自乳化载体。
将固态多重自乳化载体分散在去离子水中,该分散液通过粒度仪测得其平均粒径为21.97μm,光学显微镜观察有多重球形结构。
实施例3
本实施例的配方如下:
参见图1所示,本实施例的制备步骤如下:
步骤1)称取25g去离子水作为水相;
称取1g虾青素,19g芦荟油,5g山梨醇酐单硬脂酸酯,搅拌使其完全溶解并搅拌均匀,作为油相;
步骤2)将水相缓缓倒入油相内,同时进行搅拌10分钟,混合均匀,600bar高压均质3个循环;
步骤3)向步骤2)制得的混合物中继续投入5g聚氧乙烯失水山梨醇脂肪酸酯,并搅拌混合均匀得到负载活性物液态多重自乳化载体;
步骤4)取45g硅酸铝镁与液态多重自乳化载体充分混合后过筛,得到固态多重自乳化载体。
将固态多重自乳化载体分散在去离子水中,该分散液通过粒度仪测得其平均粒径为15.25μm,光学显微镜观察有多重球形结构。
以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (8)
1.一种固体多重自乳化载体,其特征在于,所述载体口服后,通过人体胃部的蠕动,可自乳化形成水包油包水型乳液,按质量百分比(%w/w),所述载体包括以下组分:
改性聚合乳化剂 1~8%;
非离子型乳化剂 5~7%;
液态油脂 10~20%;
油溶性活性物 1%;
水溶性活性物 0~2%;
固体吸附剂 40~60%
水 15~30%。
2.根据权利要求1所述的固体多重自乳化载体,其特征在于:所述改性的聚合乳化剂选自十聚甘油单月桂酸酯、六聚甘油单月桂酸酯或聚氧乙烯失水山梨醇脂肪酸酯中的一种或几种。
3.根据权利要求1所述的固体多重自乳化载体,其特征在于:所述液态油脂为天然或合成的油脂。
4.根据权利要求3所述的固体多重自乳化载体,其特征在于:所述液态油脂选择自玉米油、椰子油、芦荟油或甘油中一种或几种。
5.根据权利要求1所述的固体多重自乳化载体,其特征在于:所述油溶性活性物选自白藜芦醇、虾青素或槲皮素中的一种或几种。
6.根据权利要求1所述的固体多重自乳化载体,其特征在于:所述水溶性活性物选自抗坏血酸或茶多酚中的一种或两种的混合物。
7.根据权利要求1所述的固体多重自乳化载体,其特征在于:所述固体吸附剂选择自由无水磷酸氢钙、高成型微晶纤维素802、硅酸铝镁或介孔硅中的一种或几种。
8.一种如权利要求1-7中任意一项所述的固体多重自乳化载体的制备方法,其特征在于,包括如下步骤:
步骤1)将油溶性活性物、液态油脂与改性聚合物乳化剂在室温下充分混合并搅拌均匀,作为油相;将水溶性活性物加入到水中,充分混合并搅拌均匀,作为水相,或将水直接作为水相;
步骤2)在油相中加入水相,预乳化混合均匀后,将混合物进行超声乳化、高剪切分散或高压均质形成初乳;
步骤3)在初乳中加入非离子型乳化剂,搅拌均匀,得到液态的多重自乳化载体;
步骤4)将液态的多重自乳化载体与固体吸附剂充分混合后,得到固体多重自乳化载体。
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