CN113855614B - 一种防晒组合物及其制备方法和应用 - Google Patents
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Abstract
本发明公开了一种防晒组合物及其制备方法和应用,属于化妆品技术领域。该防晒组合物包括以下质量分数的组分:雪莲花提取物1‑5%、沙棘果提取物0.5‑2.5%、黄芩根提取物0.1‑1%、藏菖蒲提取物0.1‑2%、水飞蓟籽提取物0.1‑1%、水余量。该防晒组合物通过将多种植物提取物进行复配,各个成分之间发挥协同作用,可以实现全波段紫外线的有效吸收,还兼具高效的抗氧化和美白功效。
Description
技术领域
本发明涉及一种防晒组合物及其制备方法和应用,属于化妆品技术领域。
背景技术
紫外线按波长分为UVC(200-280nm)、UVB(280-320nm)和UVA(320-400nm),其中,能够穿过大气层到达地面的紫外线为UVB和UVA。UVB能够穿透角质层和表皮,是大多数皮肤疾病的诱因也是晒伤的元凶,轻则发生皮肤红肿,重则产生红斑和水疱;而UVA一般不引起炎症,但是对皮肤的伤害具有累积性,引起长期的、慢性的损伤。据美国1993年防晒试验性最终专论(TFM)和美国国家卫生研究所的说法,通过动物实验表明,UVB和UVA都表现出对皮肤的致癌作用,然而前者的作用较强;当UVB存在时,UVA会增加其致癌作用。
随着紫外线危害的普及和化妆品的发展,防晒类化妆品成为人们进行防晒的常见选择。目前,市面上常用的提取物为物理防晒如二氧化钛、氧化锌等,和化学防晒如对氨基苯甲酸(PABA)及其酯类、水杨酸酯及其衍生物、肉桂酸酯类、樟脑类衍生物等。化妆品厂商为了迎合流行趋势,开发高SPF值和PA级别的产品,不得不加大提取物的添加量。然而,添加大剂量的物理或化学提取物的问题也接踵而来。如大量使用物理提取物导致难涂抹、洗卸困难,而化学提取物容易引起皮肤过敏,有些也是环境不友好成分。
发明内容
本发明的目的在于克服现有技术的不足,提供一种防晒组合物及其制备方法和应用,该防晒组合物通过将多种植物提取物进行复配,各个成分之间发挥协同作用,可以实现全波段紫外线的有效吸收,还兼具高效的抗氧化和美白功效。
为实现上述目的,本发明采取的技术方案为:一种防晒组合物,包括以下质量分数的组分:雪莲花提取物1-5%、沙棘果提取物0.5-2.5%、黄芩根提取物0.1-1%、藏菖蒲提取物0.1-2%、水飞蓟籽提取物0.1-1%、水余量。
发明人发现,本发明的雪莲花提取物在280-360nm处有强吸收,所述沙棘果提取物在280-380nm处有强吸收,所述黄芩根提取物在280-330nm处有强吸收,所述藏菖蒲提取物在280-310nm处有强吸收,所述水飞蓟籽提取物在280-320nm处有强吸收。
本发明的发明人研究发现,雪莲花提取物、沙棘果提取物、藏菖蒲提取物、水飞蓟籽提取物和黄芩根提取物组成的复配提取物可增加防晒的UVA及UVB指数,对SPF值有明显的协同增效作用;另外由于该防晒组合物为天然植物产品,含有植物成分,具有清爽、快速吸收的特性,可与溶于多种溶剂,如丁二醇、乙醇等。并且,该组合物还具有消炎、清除自由基、美白的效果。
雪莲花提取物可以有效保护皮肤免受紫外线的影响,具有抗炎、修复组织和抗超氧自由基的作用。
黄芩根提取物的主要成分是黄芩苷,黄芩苷可以吸收紫外线,具有抗过敏作用;黄芩苷锌和黄芩苷铜对超氧自由基有明显的的清除作用,保护皮肤细胞不受氧自由基过度氧化。
沙棘果提取物中含有丰富的维生素以及黄酮类化合物,这些物质可以有效的帮助皮肤抗氧化,减少自由基的危害,具有增强皮肤活性细胞活性,延缓衰老的功效。
水飞蓟籽提取物可以捕获自由基,具有很强的抗氧化性,同时水飞蓟提取物对弹性蛋白酶有良好抑制作用,能够收敛皮肤的毛孔,具有抗衰老的作用。
优选地,所述的防晒组合物,包括以下质量分数的组分:雪莲花提取物1-5%、沙棘果提取物0.5-2.5%、黄芩根提取物0.5-1%、藏菖蒲提取物1-2%、水飞蓟籽提取物0.5-1%、水余量。发明人发现,当提取物的用量范围在上述配比时,防晒组合物的防晒、抗氧化效果更佳。
优选地,所述的防晒组合物,包括以下质量分数的组分:雪莲花提取物3%、沙棘果提取物1.25%、黄芩根提取物0.5%、藏菖蒲提取物1.8%、水飞蓟籽提取物0.6%、水余量。发明人发现,当提取物的用量范围在上述配比时,防晒组合物的防晒、抗氧化效果最佳。
优选地,所述雪莲花提取物的制备方法为:将雪莲花干燥后进行粉碎,然后使用乙醇溶液加热回流提取,获得提取液,然后将提取液进行减压蒸馏、浓缩,即得雪莲花提取物。
优选地,所述水飞蓟籽提取物的制备方法为:将水飞蓟籽干燥后进行粉碎,然后使用乙醇溶液加热回流提取,获得提取液,然后将提取液进行减压蒸馏、浓缩,即得水飞蓟籽提取物。
优选地,所述藏菖蒲提取物的制备方法为:将藏菖蒲干燥后进行粉碎,然后使用乙醇溶液加热回流提取,获得提取液,然后将提取液进行减压蒸馏、浓缩,即得藏菖蒲提取物。
优选地,所述沙棘果提取物的制备方法为:将沙棘果干燥后进行粉碎,然后使用乙醇溶液加热回流提取,获得提取液,然后将提取液进行树脂纯化、减压蒸馏、浓缩干燥后,即得沙棘果提取物。
优选地,所述黄芩根提取物的制备方法为:将黄芩根干燥后进行粉碎,然后使用乙醇溶液加热回流提取,获得提取液,然后将提取液进行减压蒸馏、浓缩干燥后,即得黄芩根提取物。
本发明提供了一种防晒组合物的制备方法,,包括以下步骤:
(1)将雪莲花提取物、沙棘果提取物、黄芩根提取物、水飞蓟籽提取物、藏菖蒲提取物分别加入到30%丁二醇溶液中,搅拌均匀,即得提取物溶液,所述提取物溶液中提取物的浓度为1mg/mL;
(2)将步骤(1)所得提取物溶液和水按比例混合均匀,即得防晒组合物。
本发明还提供了防晒组合物在化妆品中的应用。
与现有技术相比,本发明的有益效果为:本发明提供了一种防晒组合物及其制备方法和应用,该防晒组合物具有较高的SPF值,且在全波段紫外线都有良好的防晒效果,此外,该防晒组合物还具有优秀的抗氧化能力,能清除阳光照射后皮肤产生的自由基和减少黑色素的形成。其次,本发明防晒组合物的制备方法步骤简单,质量稳定,生产效率高,生产成本低,可大规模工业化生产。
具体实施方式
为更好的说明本发明的目的、技术方案和优点,下面将结合具体实施例对本发明作进一步的说明。
实施例1-7和对比例1-5
实施例1-7和对比例1-5防晒组合物的组成组分如表1所示,其中组分配比为雪莲花提取物、沙棘果提取物、黄芩根提取物、藏菖蒲提取物和水飞蓟籽提取物的质量百分数之比,即组分配比为雪莲花提取物:沙棘果提取物:黄芩根提取物:藏菖蒲提取物:水飞蓟籽提取物,水为余量。
本发明实施例1-7和对比例1-5防晒组合物的制备方法为:
(1)将雪莲花干燥后进行粉碎,然后使用80%乙醇溶液在100℃下回流提取1h,提取2次,合并提取液,然后将提取液进行减压蒸馏、浓缩,即得雪莲花提取物;
(2)将水飞蓟籽干燥后进行粉碎,然后使用70%乙醇溶液在100℃下回流提取1h,提取2次,合并提取液,然后将提取液进行减压蒸馏、浓缩,即得水飞蓟籽提取物;
(3)将藏菖蒲干燥后进行粉碎,然后使用水溶液在80℃下回流提取2.5h,提取2次,合并提取液,然后将提取液进行减压蒸馏、浓缩,即得藏菖蒲提取物;
(4)将沙棘果干燥后进行粉碎,然后使用60%乙醇溶液在80℃下回流提取3h,得到提取液,将提取液经过D101树脂纯化、减压蒸馏、浓缩、干燥后,得到沙棘果提取物;
(5)将黄芩根干燥后进行粉碎,然后使用70%乙醇溶液在80℃下回流提取1h,取2次,合并提取液,得到提取液,将提取液经过AB-8树脂纯化、减压蒸馏、浓缩、干燥后,得到黄芩根提取物;
(6)将步骤(1)-(5)所得提取物分别加入到30%丁二醇溶液中,搅拌均匀,即得提取物溶液,所述提取物溶液中提取物的浓度为1mg/mL;
(7)将步骤(6)所得提取物溶液和水按比例混合均匀,即得防晒组合物。各性能的测试方法
防晒能力:国内体外评价化妆品原料的防晒性能通过两个指标进行标识,分别是SPF(sunprotectionfactos)和临界波长。其中,SPF值用来标识产品对UVB的防护能力,可以使用体外紫外分光光度计法参照Mansur经典数学方程式(式1)计算;临界波长是样品从290nm到某一波长的吸收光谱曲线下的面积是290-400nm范围内吸收光谱曲线面积的90%时的波长。美国CTFA/NMDA对此方法进行了改进,并接受波长370nm作为样品是否具有广谱防晒作用的临界波长,即测定的临界波长大于370nm,判定所测样品具有UVA防护作用。可以使用体外紫外分光光度计法参照Diffey经典数学方程式(式2)计算:
式中,CF为相关系数10,E(λ)和I(λ)的乘积为实验常数,A(λ)为特定波长内检测的吸光度,λc为临界波长。
本发明使用岛津UV-1800紫外可见分光光度计在波长为290-400nm内对防晒组合物每间隔5nm进行一次扫描,记录吸光度并进行计算。
DPPH自由基清除率:将实施例1-7和对比例1-5防晒组合物分别稀释200倍,得到样品溶液,准确吸取1mL样品溶液,加入5mLDPPH溶液,混匀后在室温(25℃)避光静置30min,测定517nm处的吸光值,以Trolox作为阳性对照物,计算清除率,DPPH自由基清除率公式如下。
y=(A0-A1-A2)/A0*100
y—清除率,%;
A0—1mL乙醇+5mLDPPH溶液的吸光度;
A1—1mL样品/Trolox标准液+5mLDPPH溶液的吸光度;
A2—1mL样品/Trolox标准液+乙醇溶液的吸光度(消除不同样品之间颜色的误差)。
酪氨酸酶抑制率:首先配制1KU/mL酪氨酸酶溶液和0.5mg/mL酪氨酸溶液,将各实施例和对比例的防晒组合物稀释50倍。每个防晒组合物一共做12孔,每孔加入50μL的5mmol/L酪氨酸溶液,在其中6个孔里加入100μL超纯水,每6个孔为一组,分别为A、B组;在其中6个孔里加入100μL样品,每3个孔为一组,分别为C、D组(即设3个平行)。避光条件下,在A组、C组中加入20μL酪氨酸酶溶液,在B组、D组加入20μL超纯水,25℃反应10min,测475nm下测每个孔吸光值,计算酪氨酸酶抑制率。
A——对照溶液吸光值;
B——对照空白溶液吸光值;
C——实验组吸光值;
D——实验组空白吸光值。
用过以上方法获得的防晒组合物,用于测试性能,性能测试结果如表1所示。
表1
从表1中可以看出,本发明的防晒组合物具有较高的SPF值,且在全波段紫外线都有良好的防晒效果,此外,该防晒组合物还具有优秀的抗氧化能力,能清除阳光照射后皮肤产生的自由基和减少黑色素的形成。对比实施例1和对比例1-5可知,缺少某一组分的防晒组合物,其防晒性能、抗氧化性显著下降。
最后所应当说明的是,以上实施例用以说明本发明的技术方案而非对本发明保护范围的限制,尽管参照较佳实施例对本发明作了详细说明,本领域的普通技术人员应当理解,可以对本发明的技术方案进行修改或者同等替换,而不脱离本发明技术方案的实质和范围。
Claims (8)
1.一种防晒组合物,其特征在于,包括以下质量分数的组分:雪莲花提取物1-5%、沙棘果提取物0.5-2.5%、黄芩根提取物0.5-1%、藏菖蒲提取物1-2%、水飞蓟籽提取物0.5-1%、水余量。
2.如权利要求1所述的防晒组合物,其特征在于,包括以下质量分数的组分:雪莲花提取物3%、沙棘果提取物1.25%、黄芩根提取物0.5%、藏菖蒲提取物1.8%、水飞蓟籽提取物0.6%、水余量。
3.如权利要求1-2任一项所述的防晒组合物,其特征在于,所述雪莲花提取物的制备方法为:将雪莲花干燥后进行粉碎,然后使用乙醇溶液加热回流提取,获得提取液,然后将提取液进行减压蒸馏、浓缩,即得雪莲花提取物。
4.如权利要求1-2任一项所述的防晒组合物,其特征在于,所述水飞蓟籽提取物的制备方法为:将水飞蓟籽干燥后进行粉碎,然后使用乙醇溶液加热回流提取,获得提取液,然后将提取液进行减压蒸馏、浓缩,即得水飞蓟籽提取物。
5.如权利要求1-2任一项所述的防晒组合物,其特征在于,所述藏菖蒲提取物的制备方法为:将藏菖蒲干燥后进行粉碎,然后使用乙醇溶液加热回流提取,获得提取液,然后将提取液进行减压蒸馏、浓缩,即得藏菖蒲提取物。
6.如权利要求1-2任一项所述的防晒组合物,其特征在于,所述沙棘果提取物的制备方法为:将沙棘果干燥后进行粉碎,然后使用乙醇溶液加热回流提取,获得提取液,然后将提取液进行树脂纯化、减压蒸馏、浓缩干燥后,即得沙棘果提取物。
7.如权利要求1-2任一项所述的防晒组合物,其特征在于,所述黄芩根提取物的制备方法为:将黄芩根干燥后进行粉碎,然后使用乙醇溶液加热回流提取,获得提取液,然后将提取液进行减压蒸馏、浓缩干燥后,即得黄芩根提取物。
8.一种权利要求1-2任一项所述的防晒组合物在化妆品中的应用。
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