食品科学 ›› 2022, Vol. 43 ›› Issue (16): 90-97.doi: 10.7506/spkx1002-6630-20211007-046

• 食品化学 • 上一篇    下一篇

环境因素对β-胡萝卜素复合纳米粒子稳定性的影响

郭静,孙晓琳,潘思轶   

  1. (华中农业大学食品科学技术学院,湖北 武汉 430070)
  • 出版日期:2022-08-25 发布日期:2022-08-31
  • 基金资助:
    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)

Effect of Environmental Conditions on the Stability of β-Carotene Nanoparticles

GUO Jing, SUN Xiaolin, PAN Siyi   

  1. (College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China)
  • Online:2022-08-25 Published:2022-08-31

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。

关键词: β-胡萝卜素;三元复合纳米颗粒;环境因素;稳定性

Abstract: 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 encapsulate β-carotene. The structural properties of β-carotene nanoparticles were studied. Moreover, the influences of environmental conditions such as temperature, pH and light on the stability of β-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 for β-carotene (93.63%) and showed good stability against temperature and pH. In addition, the ternary complex was extremely effective in inhibiting β-carotene color degradation caused by exposure to ultraviolet light, keeping the average particle size below 250 nm. Therefore, zein-lecithin-propylene glycol alginate nanoparticles are expected to become an effective carrier for hydrophobic compounds.

Key words: β-carotene; ternary composite nanoparticles; environmental conditions; stability

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