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Improving nutraceutical bioavailability using mixed colloidal delivery systems: lipid nanoparticles increase tangeretin bioaccessibility and absorption from tangeretin-loaded zein nanoparticles

机译:使用混合胶体递送系统改善营养保健品的生物利用度:脂质纳米颗粒可增加橘皮素的生物可及性,并从橘皮素负载的玉米醇溶蛋白纳米颗粒中吸收

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The objective of this study was to evaluate the influence of dietary lipids on the gastrointestinal fate of tangeretin-loaded zein nanoparticles. The zein delivery systems were mixed with different amounts of oilin- water emulsions to represent varying levels of digestible fat in the diet, and then passed through a simulated gastrointestinal tract model. Tangeretin bioaccessibility increased with increasing fat content due to enhanced solubilization within the mixed micelles formed by lipid digestion products (fatty acids and monoacylglycerols) in the intestinal fluids. Indeed, the tangeretin concentration in the micelle phase was about twelve times higher in the presence of fat droplets than in their absence. The intestinal epithelium absorption study indicated that tangeretin permeability across the model epithelium cells also increased with increasing fat content. This study suggests that utilizing mixed colloidal systems consisting of both lipid nanoparticles and protein nanoparticlesmay promote the bioavailability of hydrophobic bioactive agents.
机译:这项研究的目的是评估饮食中的脂质对丹参酮玉米醇溶蛋白纳米粒胃肠道命运的影响。玉米醇溶蛋白递送系统与不同量的油包水型乳剂混合,以代表日粮中不同水平的可消化脂肪,然后通过模拟胃肠道模型。橘皮素的生物可及性随着脂肪含量的增加而增加,这是由于肠液中脂质消化产物(脂肪酸和单酰基甘油)形成的混合胶束中的增溶作用增强。实际上,在存在脂肪滴的情况下,胶束相中的橘皮苷浓度比在不存在脂肪滴的情况下高约十二倍。肠道上皮吸收研究表明,橘皮苷跨模型上皮细胞的渗透性也随着脂肪含量的增加而增加。这项研究表明,利用由脂质纳米颗粒和蛋白质纳米颗粒组成的混合胶体系统可以促进疏水性生物活性剂的生物利用度。

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