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Effect of nanoencapsulation of blueberry (Vaccinium myrtillus): A green source of flavonoids with antioxidant and photoprotective properties
Sustainable Chemistry and Pharmacy ( IF 6 ) Pub Date : 2021-09-11 , DOI: 10.1016/j.scp.2021.100515
Julia Gomes Franco 1 , Letícia Caramori Cefali 2, 3 , Janaína Artem Ataide 1, 3 , Antonello Santini 4 , Eliana B. Souto 3, 5 , Priscila Gava Mazzola 1
Affiliation  

The effect of nanoencapsulation on the in vitro photoprotection and antioxidant properties of blueberry (Vaccinium myrtillus) extract, before and after their dispersion into an oil-in-water emulsion and its final stability under stress conditions. Besides its skin healing activity, chitosan was chosen as wall material due to its natural origin, and possibility of obtention from shrimp residues. Chitosan/tripolyphosphate (TPP) nanoparticles loaded with blueberry extract were produced and characterized. Three different semi-solid oil-in-water emulsions, using Ecocert certified materials, were developed containing, respectively, (i) 5% (wt/wt) of extract-free nanoparticles, (ii) 5% (wt/wt) of extract-loaded nanoparticles, (iii) 2% (wt/wt) of free extract. Sun protection factor (SPF), antioxidant activity and stability under stress conditions were evaluated. The concentration of rutin was determined by High Performance Liquid Chromatography (HPLC). The loading of blueberry extract into nanoparticles kept their physicochemical properties, as well as SPF and antioxidant activity, over the course of the stability study. Extract-loaded nanoparticles were dispersed in a semi-solid oil-in-water emulsion and were shown to protect the extract from oxidation, suggesting that formulation containing 5% (wt/wt) of extract-free nanoparticles could presented lower difference between initial and final SPF and antioxidant activity values after 90 days of analysis. The developed formulation is proposed as a greener potential formulation to be used as photoprotector, especially if associated with physical sun filters. The role of blueberry flavonoids and the synergistic effect of nanoparticles against skin aging are here discussed.



中文翻译:

蓝莓 (Vaccinium myrtillus) 纳米胶囊的作用:具有抗氧化和光保护特性的黄酮类化合物的绿色来源

纳米胶囊化的对的影响在体外光保护和蓝莓的抗氧化性质(欧洲越桔) 在它们分散成水包油乳液之前和之后提取,以及在压力条件下的最终稳定性。除了其皮肤愈合活性外,由于其天然来源以及从虾残留物中获得的可能性,选择壳聚糖作为壁材料。制备并表征了负载有蓝莓提取物的壳聚糖/三聚磷酸盐 (TPP) 纳米颗粒。使用 Ecocert 认证材料开发了三种不同的半固体水包油乳液,分别包含 (i) 5% (wt/wt) 无提取物纳米颗粒,(ii) 5% (wt/wt)载有提取物的纳米颗粒,(iii) 2% (wt/wt) 的游离提取物。评估了防晒因子 (SPF)、抗氧化活性和应激条件下的稳定性。芦丁的浓度通过高效液相色谱法(HPLC)测定。在稳定性研究过程中,将蓝莓提取物加载到纳米颗粒中可以保持其理化特性以及 SPF 和抗氧化活性。载有提取物的纳米颗粒分散在半固体水包油乳液中,并显示出可以保护提取物免受氧化,这表明含有 5% (wt/wt) 无提取物纳米颗粒的配方可以在初始和分析 90 天后的最终 SPF 和抗氧化活性值。开发的配方被提议作为一种更环保的潜在配方,用作光保护剂,特别是如果与物理防晒剂相关联。这里讨论了蓝莓黄酮类化合物的作用和纳米粒子对皮肤老化的协同作用。以及 SPF 和抗氧化活性,在稳定性研究过程中。载有提取物的纳米颗粒分散在半固体水包油乳液中,并显示出可以保护提取物免受氧化,这表明含有 5% (wt/wt) 无提取物纳米颗粒的配方可以在初始和分析 90 天后的最终 SPF 和抗氧化活性值。开发的配方被提议作为一种更环保的潜在配方,用作光保护剂,特别是如果与物理防晒剂相关联。这里讨论了蓝莓黄酮类化合物的作用和纳米粒子对皮肤老化的协同作用。以及 SPF 和抗氧化活性,在稳定性研究过程中。载有提取物的纳米颗粒分散在半固体水包油乳液中,并显示出可以保护提取物免受氧化,这表明含有 5% (wt/wt) 无提取物纳米颗粒的配方可以在初始和分析 90 天后的最终 SPF 和抗氧化活性值。开发的配方被提议作为一种更环保的潜在配方,用作光保护剂,特别是如果与物理防晒剂相关联。这里讨论了蓝莓黄酮类化合物的作用和纳米粒子对皮肤老化的协同作用。载有提取物的纳米颗粒分散在半固体水包油乳液中,并显示出可以保护提取物免受氧化,这表明含有 5% (wt/wt) 无提取物纳米颗粒的配方可以在初始和分析 90 天后的最终 SPF 和抗氧化活性值。开发的配方被提议作为一种更环保的潜在配方,用作光保护剂,特别是如果与物理防晒剂相关联。这里讨论了蓝莓黄酮类化合物的作用和纳米粒子对皮肤老化的协同作用。载有提取物的纳米颗粒分散在半固体水包油乳液中,并显示出可以保护提取物免受氧化,这表明含有 5% (wt/wt) 无提取物纳米颗粒的配方可以在初始和分析 90 天后的最终 SPF 和抗氧化活性值。开发的配方被提议作为一种更环保的潜在配方,用作光保护剂,特别是如果与物理防晒剂相关联。这里讨论了蓝莓黄酮类化合物的作用和纳米粒子对皮肤老化的协同作用。开发的配方被提议作为一种更环保的潜在配方,用作光保护剂,特别是如果与物理防晒剂相关联。这里讨论了蓝莓黄酮类化合物的作用和纳米粒子对皮肤老化的协同作用。开发的配方被提议作为一种更环保的潜在配方,用作光保护剂,特别是如果与物理防晒剂相关联。这里讨论了蓝莓黄酮类化合物的作用和纳米粒子对皮肤老化的协同作用。

更新日期:2021-09-12
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