环境因素对β-胡萝卜素复合纳米粒子稳定性的影响  

Effect of Environmental Conditions on the Stability ofβ-Carotene Nanoparticles

作　　者：郭静[1] 孙晓琳 潘思轶[1] GUO Jing;SUN Xiaolin;PAN Siyi(College of Food Science and Technology,Huazhong Agricultural University,Wuhan 430070,China)

机构地区：[1]华中农业大学食品科学技术学院,湖北武汉430070

出　　处：《食品科学》2022年第16期90-97,共8页Food Science

基　　金：现代农业产业技术体系建设专项(CARS-26-07B);中央高校基本科研业务费专项(2662019PY016);湖北省技术创新专项重大项目(2018ABA072)。

摘　　要：通过反溶剂沉淀法制备玉米醇溶蛋白-卵磷脂-海藻酸丙二醇酯三元复合物,并应用于β-胡萝卜素的包埋,重点研究其结构特性,并考察温度、pH值、光照等环境因素对β-胡萝卜素纳米粒子分散体系稳定性的影响。结果表明:与玉米醇溶蛋白纳米颗粒、玉米醇溶蛋白-卵磷脂二元复合纳米颗粒相比,三元复合物具有更高的β-胡萝卜素包封率(包封率可达93.63%),并且该纳米粒子对温度和pH值表现出稳定的理化特性。此外,三元复合物对抑制β-胡萝卜素在紫外线照射下的颜色降解也非常有效,平均粒径均仍保持在波长250 nm以下。因此,该玉米醇溶蛋白-卵磷脂-海藻酸丙二醇酯纳米粒子有望成为疏水性化合物的有效包埋载体。In this study,a ternary complex of zein with lecithin and propylene glycol alginate(PGA)was prepared by an anti-solvent method and applied to encapsulateβ-carotene.The structural properties ofβ-carotene nanoparticles were studied.Moreover,the influences of environmental conditions such as temperature,pH and light on the stability ofβ-carotene nanoparticles were investigated.The results showed that compared with zein nanoparticles and zein-lecithin complexes,the ternary complex nanoparticles had a higher encapsulation efficiency forβ-carotene(93.63%)and showed good stability against temperature and pH.In addition,the ternary complex was extremely effective in inhibitingβ-carotene color degradation caused by exposure to ultraviolet light,keeping the average particle size below 250 nm.Therefore,zein-lecithinpropylene glycol alginate nanoparticles are expected to become an effective carrier for hydrophobic compounds.

关 键 词：Β-胡萝卜素 三元复合纳米颗粒 环境因素 稳定性 

分 类 号：TS201.7[轻工技术与工程—食品科学]