CN107157931B - 负载白藜芦醇的w/o/w乳液及其制备方法 - Google Patents

负载白藜芦醇的w/o/w乳液及其制备方法 Download PDF

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CN107157931B
CN107157931B CN201710359171.7A CN201710359171A CN107157931B CN 107157931 B CN107157931 B CN 107157931B CN 201710359171 A CN201710359171 A CN 201710359171A CN 107157931 B CN107157931 B CN 107157931B
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王强
石爱民
王珺
刘红芝
刘丽
胡晖
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INSTITUTE FOR APPLICATION OF ATOMIC ENERGY CHINESE ACADEMY OF AGRICULTURAL SCIENCES
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Abstract

本发明涉及一种负载白藜芦醇的W/O/W乳液及其制备方法。所述负载白藜芦醇的W/O/W乳液,包括以下质量百分含量的组分:白藜芦醇0.00032%‑0.00064%;亲脂性乳化剂0.5%‑2.2%;脂质材料10%‑19%;亲水性乳化剂1.5%‑8%;适量水。本发明乳液具有较好的稳定性,在4℃放置2个月不分层,高速离心4000r/min,30min的条件下不分层。此外,该乳液在油相和内水相中同时负载了白藜芦醇,包封率高达99%,因此可以显著的提高负载白藜芦醇的含量。

Description

负载白藜芦醇的W/O/W乳液及其制备方法
技术领域
发明涉及一种白藜芦醇的制剂技术,具体涉及一种负载活性成分白藜芦醇的W/O/W乳液及其制备方法,特别涉及一种以白藜芦醇为活性成分的微米级的W/O/W乳液的制备方法,属于食品药品和化妆品制备技术领域。
背景技术
白藜芦醇(Resveratrol,简称RES),化学名3,4',5-三羟基-二苯乙烯,属于含有芪类结构的非黄酮类多酚化合物,广泛存在于水果、中药、葡萄酒等天然植物中,具有多种生理功效。白藜芦醇的主要作用有:1、白藜芦醇的非特异性抗炎作用:主要通过抑制核因子-κB活性来实现对肠道的抗炎作用。2、白藜芦醇的抑制肠道纤维化作用:通过抑制肠成纤维细胞中的IGF-Ⅰ受体活性来抑制胶原Ⅰ合成,且中断SIRT1的表达并不影响白藜芦醇的抗纤维化作用,提示白藜芦醇可通过激活SIRT1或抑制IGF-Ⅰ受体两条通路来抑制细胞纤维化。3、白藜芦醇的抗氧化作用:通过清除活性氧簇而发挥抗氧化作用,缓解各器官缺血再灌注导致的氧化应激。4、白藜芦醇的抑制肠道细胞凋亡作用:通过抑制上皮细胞凋亡的方式维护肠道屏障的完整,减轻肠道损伤,防止细菌和内毒素移位。5、白藜芦醇的心血管保护作用:通过抑制血小板功能和内皮细胞TF的表达,减少血栓的形成。6、白藜芦醇的神经系统保护作用:白藜芦醇可以标识激酶和神经细胞,通过葡萄酒摄入白藜芦醇,对于老年人的退化病,如帕金森症、痴呆症、风湿性疾病都有较好的预防和治疗作用。7、白藜芦醇的保肝作用:降低血清和肝脏的脂质,减少脂质过氧化物在体内的堆积,保护肝脏不受损害。8、白藜芦醇的调节免疫作用:白藜芦醇可极大地减少肝癌、肝移植术后排斥反应的发生。
白藜芦醇是一种难溶于水的化合物,其见光易分解的特性限制了其在食品、药品和化妆品行业的发展。现有技术使得白藜芦醇乳液体系不稳定并且包封率较低,应用效果不明显。W/O/W乳液是分散相液滴中又包含另外一种更小液滴的复杂乳液体系,从内到外依次具有内水相、内-水油界面膜、油相、外-油水界面膜、外水相等,属于多相体系。与单层乳液相比可以延长被乳化组分的释放时间,起到隔离、保护、缓释、控释和靶向释放的作用,可以广泛的应用于食品、医药和化妆品等行业。但是,W/O/W乳液体系稳定性差,制备工艺复杂,限制了其在生产上的广泛应用。现有技术中还没有白藜芦醇W/O/W乳液的相关研究报道。
发明内容
本发明目的在于提供一种负载白藜芦醇的W/O/W乳液,解决了现有技术中白藜芦醇稳定性差、负载量低和生物利用率低的问题。
本发明技术方案如下:
一种负载白藜芦醇的W/O/W乳液,其包括以下质量百分含量的组分:
优选地,所述负载白藜芦醇的W/O/W乳液包括以下质量百分含量的组分:
进一步优选地,所述负载白藜芦醇的W/O/W乳液包括以下质量百分含量的组分:
具体地,所述负载白藜芦醇的W/O/W乳液包括以下质量百分含量的组分:
优选地,所述负载白藜芦醇的W/O/W乳液中在油相和内水相中均负载有白藜芦醇。
优选地,所述亲脂性乳化剂选自单硬脂酸甘油酯、卵磷脂、Span 80、聚甘油蓖麻醇酯(PGPR)等中的一种或几种。
优选地,所述脂质材料选自中链甘油三酯(MCT)、花生油、亚麻籽油、橙皮油、橄榄油等中的一种或几种。
优选地,所述亲水性乳化剂选自Tween 80(吐温80)、变性淀粉、花生分离蛋白、果胶、壳聚糖、乳清分离蛋白等中的一种或几种。
优选地,所述负载白藜芦醇的W/O/W乳液中内水相与油相的质量比为(10:90):(50:50),例如10:90,20:80,30:70,40:60,50:50,进一步优选为20:80。
本发明优选采用去离子水。
本发明另一目的在于提供一种负载白藜芦醇的W/O/W乳液的制备方法,包括以下步骤:
(1)将亲脂性乳化剂加入到脂质材料中得到油相,将白藜芦醇分别加入到油相和内水相中,将内水相和油相混合,高速剪切(例如转速控制在25000r/min,剪切3min),之后通过高压均质法制备W/O初乳;
(2)将亲水性乳化剂加入到外水相中,在室温下将步骤(1)得到的W/O初乳加入到外水相中,且边加入边高速剪切均匀(转速控制在10000r/min,剪切2min),最后将该混合物通过高压均质法制备W/O/W乳液。
优选地,所述方法中制备油相的方法包括称量质量比为1:10的乳化剂和脂质材料,将乳化剂和脂质材料混合均匀后得到油相的步骤。
优选地,所述方法中制备含有亲水性乳化剂的外水相的方法包括称量质量比为1:20的亲水性乳化剂和水,将亲水性乳化剂和水进行均匀混合,得到含有亲水性乳化剂的外水相步骤。
优选地,所述方法中高压均质法包括以下步骤:
A、将含有白藜芦醇的水溶液加入到含有白藜芦醇的油相中,转速控制在25000r/min下进行高速剪切均匀3min得到均匀的混合物,将该混合物放入高压均质机中循环4次,压力在30MPa-60MPa,得到W/O的初乳。
B、将步骤A得到的乳液放入高压均质机中循环3次,压力在5MPa-10MPa,得到W/O/W乳液。
具体地,本发明所述的负载白藜芦醇的W/O/W乳液的制备方法包括以下步骤:
(1)分别称量亲脂性乳化剂和脂质材料,两者的质量比为1:10,将两者混合均匀得到油相;
(2)分别称量白藜芦醇和油相,两者的质量比为3×10-5:1,将两者混合均匀;
(3)称量白藜芦醇,白藜芦醇和内水相的质量比为1×10-5:1;
(4)分别称量外水相和亲水性乳化剂,两者的质量比为20:1,将两者混合均匀;
(5)将步骤(3)中白藜芦醇的水溶液加入到步骤(2)中的含有白藜芦醇的油相中,高速剪切均匀,转速为25000r/min,时间3min,将剪切后的乳液加入到高压均质机中均质4次,均质压力30MPa,得到W/O初乳;
(6)将步骤(5)得到的初乳加入到步骤(4)中,高速剪切均匀,转速为10000r/min,时间为2min,将剪切后的乳液加入到高压均质机中均质3次,均质压力10MPa。
更为详尽地,上述负载白藜芦醇的W/O/W乳液的制备方法,包括以下步骤:
(1)称取适量白藜芦醇,加入到适量去离子水中,溶解得到白藜芦醇水溶液;
(2)按配方称取余量的白藜芦醇、亲脂性乳化剂、脂质材料,混合均匀,得到油相;
(3)将步骤(1)得到的白藜芦醇水溶液加入到步骤(2)得到的油相中,用高速剪切机剪切(例如25000r/min,时间为3min),得到均匀的乳液;然后再将该乳液加入到高压均质机中均质(例如30MPa,4个循环),制得初乳(W/O型);
(4)按配方称取亲水性乳化剂,加入到适量去离子水中,得到外水相;
(5)将步骤(3)制备得到的初乳(W/O型)加入到所述外水相中,用高速分散机分散(例如转速为10000r/min,时间为2min);然后将得到的混合物加入到高压均质机中均质(例如条件为10MPa,循环3次),制得负载白藜芦醇的W/O/W型乳液。
进一步地,上述负载白藜芦醇的W/O/W乳液的制备方法中,
步骤(1)所制得的白藜芦醇水溶液的质量分数为0.0005-0.0015%;优选为0.001%;
步骤(2)所制得的油相中白藜芦醇的质量分数为0.001-0.003%;优选为0.002727%;
步骤(3)中,步骤(1)所制得的白藜芦醇水溶液与步骤(2)所制得的油相的质量比为(10:90)-(50:50);优选为20:80;
步骤(5)中,步骤(3)所制得的初乳(W/O型)与步骤(4)所制得的外水相的质量比为(10:90)-(30:70);优选为20:80。
本发明所述包封率与本领域常规含义相同,可采用现有常规方法检测。一种包封率的具体检测方法包括:4℃条件下,将所述W/O/W乳液在20,000×g下离心4min,乳液分层,获得乳液下层液体中白藜芦醇的含量W1;所述W/O/W乳液中总白藜芦醇的含量计为W2,用下式计算包封率:
包封率=(W2-W1)÷W2×100%
其中,获得所述W/O/W乳液中及上述离心后乳液下层液体中白藜芦醇含量份方法可为高效液相色谱法,流动相A是离子水,流动相B是色谱级的乙腈,流动相A和B的体积比例是75:25,流速是0.8mL/min。
本发明还包括上述负载白藜芦醇的W/O/W乳液在食品、药品、化妆品领域的应用。
本发明所述W/O是指油包水型乳液;O/W是指水包油型乳液;W/O/W指水油水型乳液。
本发明的优点是:
1.内水相和油相中同时运载了白藜芦醇,可以在不增加任何壁材的条件下增加了白藜芦醇的含量;
2.制备工艺条件灵活可控制。可以通过调节高速剪切的转速、均质机的压力、各组分比例可制备出含量高达0.00064%的白藜芦醇W/O/W乳液;
3.W/O/W乳液具有两层油水界面,与普通O/W乳液相比多了一层油水界面,因此可以很好的保护白藜芦醇,降低光照、氧气等条件存在下白藜芦醇的降解,起到缓释和控制释放的作用;
4.制备的W/O/W乳液稳定性好,4℃下保存2个月不分层,4000r/min下高速离心30min不分层。
本发明所述的负载白藜芦醇的W/O/W乳液,其稳定性高,该负载白藜芦醇的W/O/W乳液可应用于食品药品行业。另外该负载白藜芦醇的W/O/W乳液的制备方法是两步法,其中制备条件是可以控制的,有利于工业化生产。此外,该体系可以在不增加壁材的条件下将内水相和油相中同时负载白藜芦醇,包封率高达99%,极大地增加了白藜芦醇在整个体系的含量。
附图说明
图1为本发明方法的工艺流程图。
图2为实施例1-4制备得到的W/O/W乳液的微观结构图。
图3为对比例1-4制备得到的W/O/W乳液的微观结构图。
具体实施方式
以下实施例用于说明本发明,但不用来限制本发明的范围。实施例中未注明具体技术或条件者,按照本领域内的文献所描述的技术或条件,或者按照产品说明书进行。所用试剂或仪器未注明生产厂商者,均为可通过正规渠道商购买得到的常规产品。
实施例1
一种负载白藜芦醇的W/O/W乳液,包括如下组分:
其制备方法,包括如下步骤:
(1)称取0.024mg白藜芦醇,加入到2.4g去离子水中,溶解得到白藜芦醇水溶液;
(2)称取0.288mg白藜芦醇,0.96g聚甘油蓖麻醇酯(PGPR),9.6g中链甘油三酯(MCT),混合均匀,得到油相;
(3)将步骤(1)得到的白藜芦醇水溶液加入到步骤(2)得到的油相中,在25000r/min下用高速剪切机剪切,时间为3min,得到比较均匀的乳液;
然后再将乳液加入到高压均质机中均质,条件为30MPa,4个循环,制得初乳(W/O型);
(4)称取2.4g Tween 80,加入到约45g去离子水中(使得最终体系的总质量为60g),得到含有Tween 80的外水相;
(5)将步骤(3)制备得到的初乳(W/O型)加入到含有Tween 80的外水相中,用高速分散机分散,转速为10000r/min,时间为2min;然后将得到的混合物加入到高压均质机中均质,条件为10MPa,循环3次后制得负载白藜芦醇的W/O/W型乳液。
实验证明,该负载白藜芦醇的W/O/W乳液在4℃下放置2个月不分层;将该负载白藜芦醇的W/O/W乳液高速离心4000r/min、30min,乳液不分层。
实验证明,该负载白藜芦醇的W/O/W乳液中白藜芦醇的包封率为99%。
实施例2
一种负载白藜芦醇的W/O/W乳液,与实施例1的区别仅在于:制备方法步骤(5)中,均质压力为5MPa。
实施例3
一种负载白藜芦醇的W/O/W乳液与实施例1的区别仅在于:聚山梨酯(Tween80)的用量为4.8g;即制备方法步骤(4)中,去离子水的用量为42.3g(使得最终体系的总质量为60g),Tween 80的用量为4.8g。
实施例4
一种负载白藜芦醇的W/O/W与实施例1的区别仅在于:聚甘油蓖麻醇酯(PGPR)的用量为0.48g;即制备方法步骤(2)中,聚甘油蓖麻醇酯的用量为0.48g。
实施例1-4制作得到的W/O/W乳液的对比结果如图2所示,从微观结构来看,实施例1中,有大量的W/O/W乳液;实施例2和实施例3中,有较少的W/O/W乳液;实施例4中,有少量的W/O/W乳液。
对比例1
一种负载白藜芦醇的W/O/W乳液与实施例1的区别仅在于:制备方法步骤(5)中,均质压力为0MPa。
对比例2
一种负载白藜芦醇的W/O/W乳液与实施例1的区别仅在于:制备方法步骤(3)中,均质压力为65MPa。
对比例3
一种负载白藜芦醇的W/O/W乳液与实施例1的区别仅在于:制备方法步骤(2)中,聚甘油蓖麻醇酯的用量为0.096g。
对比例4
一种负载白藜芦醇的W/O/W乳液与实施例1的区别仅在于:制备方法步骤(4)中,聚甘油蓖麻醇酯的用量为4.8g。
对比例1-4制备得到的W/O/W乳液的对比结果如图3所示,从微观结构来看,几乎没有W/O/W结构的出现,并没有成功的制备得到W/O/W乳液。
虽然,上文中已经用一般性说明及具体实施方案对本发明作了详尽的描述,但在本发明基础上,可以对之作一些修改或改进,这对本领域技术人员而言是显而易见的。因此,在不偏离本发明精神的基础上所做的这些修改或改进,均属于本发明要求保护的范围。

Claims (3)

1.一种负载白藜芦醇的W/O/W乳液的制备方法,其特征在于,所述乳液包括如下组分:
余量为去离子水,总量为60g;
所述制备方法,包括如下步骤:
(1)称取0.024mg白藜芦醇,加入到2.4g去离子水中,溶解得到白藜芦醇水溶液;
(2)称取0.288mg白藜芦醇,0.96g聚甘油蓖麻醇酯,9.6g中链甘油三酯,混合均匀,得到油相;
(3)将步骤(1)得到的白藜芦醇水溶液加入到步骤(2)得到的油相中,在25000r/min下用高速剪切机剪切,时间为3min,得到比较均匀的乳液;
然后再将乳液加入到高压均质机中均质,条件为30MPa,4个循环,制得初乳W/O型;
(4)称取2.4g Tween 80,加入到约45g去离子水中,使得最终体系的总质量为60g,得到含有Tween 80的外水相;
(5)将步骤(3)制备得到的初乳W/O型加入到含有Tween 80的外水相中,用高速分散机分散,转速为10000r/min,时间为2min;然后将得到的混合物加入到高压均质机中均质,条件为10MPa,循环3次后制得负载白藜芦醇的W/O/W型乳液。
2.权利要求1所述方法制备的负载白藜芦醇的W/O/W乳液。
3.权利要求2所述负载白藜芦醇的W/O/W乳液在制备药品、化妆品中的应用。
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