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首页> 外文期刊>Journal of Microencapsulation: Microcapsules Liposomes Nanoparticles Microcells Microspheres >Facile microencapsulation of curcumin in acetylated starch microparticles
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Facile microencapsulation of curcumin in acetylated starch microparticles

机译：姜黄素在乙酰化淀粉微粒中的简便微囊化

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摘要

Highly acetylated starch was prepared by reacting corn starch with acetic anhydride. Acetylated starch (AS) is soluble in acetone and can be precipitated out from AS-acetone solution when deionised (DI) water is added as a non-solvent. The curcumin dissolved in AS-acetone solution could be effectively encapsulated in AS as spherical microparticles (1-3 mu m) when mixed with the DI water. The encapsulation yield of curcumin could reach 96.3%. AS encapsulation not only resulted in five-fold lower UV degradation rate of curcumin, the free radical scavenging activity of curcumin still could be well maintained. Approximately, 40% of the 1,1-diphenyl-2-picryl-hydrazyl free radical (DPPH center dot) was consumed by curcumin encapsulated in AS microparticles within 2 min.
机译：通过使玉米淀粉与乙酸酐反应来制备高度乙酰化的淀粉。乙酰化淀粉（AS）可溶于丙酮，当以非溶剂形式加入去离子（DI）水时，可从AS-丙酮溶液中沉淀出来。与去离子水混合后，溶于AS-丙酮溶液中的姜黄素可有效地以球形微粒（1-3微米）的形式封装在AS中。姜黄素的包封率可达96.3％。 AS封装不仅使姜黄素的紫外线降解率降低了五倍，而且姜黄素的自由基清除活性仍然可以很好地保持。包裹在AS微粒中的姜黄素在2分钟内消耗了大约40％的1,1-二苯基-2-吡啶基-肼基自由基（DPPH中心点）。

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