CN110558558A - 一种采用喷雾干燥制备固体十八烷酰十八烷酸普鲁兰多糖酯载油纳米粒子的方法 - Google Patents
一种采用喷雾干燥制备固体十八烷酰十八烷酸普鲁兰多糖酯载油纳米粒子的方法 Download PDFInfo
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Abstract
一种采用喷雾干燥制备固体十八烷酰十八烷酸普鲁兰多糖酯载油纳米粒子的方法,涉及一种载油固体纳米粒子(nanoparticle)粉末的制备领域。一种采用喷雾干燥制备固体十八烷酰十八烷酸普鲁兰多糖酯载油纳米粒子的方法,包括以下步骤:(1)溶胀:将普鲁兰多糖十八烷酰十八烷酸酯加入水中,十八烷酰十八烷酸普鲁兰多糖酯与水的质量比为1:10~20,溶胀4~6h;(2)混合:将油和海藻糖与(1)中液体混合;(3)高速搅拌分散:将(2)中混合液用高速搅拌分散机搅拌30min,得到分散液;(4)高压均质:将(3)中所得分散液进行高压均质,直到均匀,得到纳米粒子溶液;(5)喷雾干燥:将(4)中的纳米粒子溶液进行喷雾干燥。
Description
技术领域
本发明涉及一种载油固体纳米粒子(nanoparticle)粉末的制备方法,具体地说就是一种采用喷雾干燥制备固体十八烷酰十八烷酸普鲁兰多糖酯载油纳米粒子的方法。
背景技术
喷雾干燥是系统化技术应用于物料干燥的一种方法。于干燥室中将稀料经雾化后,在与热空气的接触中,水分迅速汽化,即得到干燥产品。该法干燥过程非常迅速,待干燥料液经离心喷雾后,表面积大大增加,瞬间就可蒸发95%-98%的水份,完成干燥时间仅需数秒钟,能直接使溶液、乳浊液干燥成粉状或颗粒状制品,采用并流型喷雾干燥形式能使液滴与热风同方向流动,虽然热风的温度较高,但由于热风进入干燥室内立即与喷雾液滴接触,室内温度急降,而物料的湿球温度基本不变,因此在高效干燥、去除微生物的同时,也不会影响待干燥物料本身的性质。
传统的水不溶性的油性物质负载都是采用微胶囊包埋技术,微胶囊大小一般为5-200μm不等,形状多样,取决于原料与制备方法被,包埋的物质称为芯材。微胶囊包埋技术可以有效减少活性物质对外界环境因素(如光、氧、水)的反应,减少芯材向环境的扩散和蒸发,控制芯材的释放,掩蔽芯材的异味,改变芯材的物理性质(包括颜色、形状、密度、分散性能)、化学性质等。
由于载油纳米粒子具有微胶囊的优点,并且其粒径远小于微胶囊而得到了大家的青睐。现有技术中,常见的制备载油水凝胶纳米粒子方法有两种。
一、透析法,两亲性载体材料(如本发明中的十八烷酰十八烷酸普鲁兰多糖酯)和油共溶于适量与水混溶、难挥发的有机溶剂,如二甲基甲酰胺(DMF)或二甲基亚砜(DMSO)中,将溶解载体和油的溶液置于透析袋中,用蒸馏水透析一定时间,随着有机溶剂透析完毕,制备载油水凝胶纳米粒子。
二、乳化法,先制备两亲性载体纳米粒子水溶液,然后将油溶解在易挥发有机溶剂中(如油的甲醇、乙醇、二氯甲烷和氯仿溶液),并将其加入纳米粒子水溶液中,形成乳液,搅拌下使有机溶剂缓慢挥发,制备载油水凝胶纳米粒子。
这两种方法不仅在制备过程都使用了有机溶剂,生产成本较高,而且产量低,难以工业化大规模生产,其应用受到了极大限制。一种采用喷雾干燥制备固体十八烷酰十八烷酸普鲁兰多糖酯载油纳米粒子的方法很好地解决了这些技术难题,拓展了纳米粒子的应用。
发明内容
本发明的目的在于提供一种采用喷雾干燥制备固体十八烷酰十八烷酸普鲁兰多糖酯载油纳米粒子的方法,以解决上述问题。
本发明解决其技术问题所采取的技术方案是:一种采用喷雾干燥制备固体十八烷酰十八烷酸普鲁兰多糖酯载油纳米粒子的方法,包括以下步骤:
(1)溶胀:将普鲁兰多糖十八烷酰十八烷酸酯加入水中,十八烷酰十八烷酸普鲁兰多糖酯与水的质量比为1:10~20,溶胀4~6h;
(2)混合:将油和海藻糖与(1)中液体混合,油与普鲁兰多糖十八烷酰十八烷酸酯的质量比为1:5~10,海藻糖与普鲁兰多糖十八烷酰十八烷酸酯的质量比为3~5:1;
(3)高速搅拌分散:将(2)中混合液用高速搅拌分散机搅拌30min,搅拌转速为9800~12000rpm,得到分散液;
(4)高压均质:将(3)中所得分散液进行高压均质,直到均匀,得到纳米粒子溶液;
(5)喷雾干燥:将(4)中的纳米粒子溶液进行喷雾干燥。
作为优化,所述的步骤(5)中的喷雾干燥条件为:进风温度125~135℃、雾化器转速20000~22000r/min、进料流量30~40ml/min、出粉水分含量为4~6%。
作为优化,所述的步骤(4)中高压匀质压力为110~130MPa。
本发明的有益效果是:与现有技术相比,本发明的一种采用喷雾干燥制备固体十八烷酰十八烷酸普鲁兰多糖酯载油纳米粒子的方法,具有以下优点:1、通过采用超高压均质十八烷酰十八烷酸普鲁兰多糖酯水溶液和油的混合物来制备载油水凝胶纳米粒子,以海藻糖为保护剂,制成的纳米粒子溶液经过121℃灭菌和冷融后测定其粒径能保持不变,说明采用这种方法制备的纳米粒子稳定性较强;2、采用喷雾干燥技术,制备十八烷酰十八烷酸普鲁兰多糖酯载油纳米粒固体粉末。所制备产品颜色均一、外表光滑,且在水中再分散迅速,无任何悬浮物,呈均一乳状液。该方法可广泛应用于食品及保健品行业中油溶性功能因子的纳米粒制备。
具体实施方式
实施例1:
一种采用喷雾干燥制备固体十八烷酰十八烷酸普鲁兰多糖酯载油纳米粒子的方法,包括以下步骤:
(1)溶胀:将10g普鲁兰多糖十八烷酰十八烷酸酯加入100ml水中,搅拌均匀后溶胀4h;
(2)混合:将2g橄榄油和30g海藻糖与(1)中液体混合;
(3)高速搅拌分散:将(2)中混合液用高速搅拌分散机搅拌30min,搅拌转速为9800rpm,得到分散液;
(4)高压均质:将(3)中分散液进行高压均质,控制压力为110MPa,匀质10min,得到纳米粒子溶液;
(5)喷雾干燥:将(4)中的纳米粒子溶液进行喷雾干燥,控制进风温度125℃、雾化器转速20000r/min、进料流量30ml/min、出粉水分含量为4%。
实施例2:
一种采用喷雾干燥制备固体十八烷酰十八烷酸普鲁兰多糖酯载油纳米粒子的方法,包括以下步骤:
(1)溶胀:将10g普鲁兰多糖十八烷酰十八烷酸酯加入100ml水中,搅拌均匀后溶胀6h;
(2)混合:将1g油和50g海藻糖与(1)中液体混合,;
(3)高速搅拌分散:将(2)中混合液用高速搅拌分散机搅拌30min,搅拌转速为12000rpm,得到分散液;
(4)高压均质:将(3)中分散液进行高压均质,控制压力为130MPa,直到均匀,得到纳米粒子溶液;
(5)喷雾干燥:将(4)中的纳米粒子溶液进行喷雾干燥,控制进风温度135℃、雾化器转速22000r/min、进料流量40ml/min、出粉水分含量为6%。
实施例3:
一种采用喷雾干燥制备固体十八烷酰十八烷酸普鲁兰多糖酯载油纳米粒子的方法,包括以下步骤:
(1)溶胀:将10g普鲁兰多糖十八烷酰十八烷酸酯加入100ml水中,搅拌均匀后溶胀5h;
(2)混合:将1.5g油和40g海藻糖与(1)中液体混合;
(3)高速搅拌分散:将(2)中混合液用高速搅拌分散机搅拌30min,搅拌转速为10000rpm,得到分散液;
(4)高压均质:将(3)中浓缩的溶液液进行高压均质,控制压力为120MPa,直到均匀,得到纳米粒子溶液;
(5)喷雾干燥:将(4)中的纳米粒子溶液进行喷雾干燥,控制进风温度130℃、雾化器转速21000r/min、进料流量35ml/min、出粉水分含量为5%。
实施例1~3中,采用纳米粒径测定仪(英国Malvern的Mastersizer 3000)测定溶液中纳米粒子的粒径为180~190nm,溶液经过121℃灭菌和冷融后测定其粒径保持不变,说明采用这种方法制备的纳米粒子稳定性较强;并且实施例1~3中,得到负载橄榄油的十八烷酰十八烷酸普鲁兰多糖酯纳米粒子粉末产品分别为41.5g、59.2g和50.3g,其收率分别为98.8%、97.0%和97.7%,该方法收率高。
上述具体实施方式仅是本发明的具体个案,本发明的专利保护范围包括但不限于上述具体实施方式的产品形态和式样,任何符合本发明权利要求书的一种采用喷雾干燥制备固体十八烷酰十八烷酸普鲁兰多糖酯载油纳米粒子的方法且任何所属技术领域的普通技术人员对其所做的适当变化或修饰,皆应落入本发明的专利保护范围。
Claims (3)
1.一种采用喷雾干燥制备固体十八烷酰十八烷酸普鲁兰多糖酯载油纳米粒子的方法,其特征在于:包括以下步骤:
(1)溶胀:将普鲁兰多糖十八烷酰十八烷酸酯加入水中,十八烷酰十八烷酸普鲁兰多糖酯与水的质量比为1:10~20,溶胀4~6h;
(2)混合:将油和海藻糖与(1)中液体混合,油与普鲁兰多糖十八烷酰十八烷酸酯的质量比为1:5~10,海藻糖与普鲁兰多糖十八烷酰十八烷酸酯的质量比为3~5:1;
(3)高速搅拌分散:将(2)中混合液用高速搅拌分散机搅拌30min,搅拌转速为9800~12000rpm,得到分散液;
(4)高压均质:将(3)中所得分散液进行高压均质,直到均匀,得到纳米粒子溶液;
(5)喷雾干燥:将(4)中的纳米粒子溶液进行喷雾干燥。
2.根据权利要求1所述的一种采用喷雾干燥制备固体十八烷酰十八烷酸普鲁兰多糖酯载油纳米粒子的方法,其特征在于:所述的步骤(5)中的喷雾干燥条件为:进风温度125~135℃、雾化器转速20000~22000r/min、进料流量30~40ml/min、出粉水分含量为4~6%。
3.根据权利要求1所述的一种采用喷雾干燥制备固体十八烷酰十八烷酸普鲁兰多糖酯载油纳米粒子的方法,其特征在于:所述的步骤(4)中高压匀质压力为110~130MPa。
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