首页> 外文期刊>Journal of Microencapsulation: Microcapsules Liposomes Nanoparticles Microcells Microspheres >Enrichment of Bifidobacterium longum subsp infantis ATCC 15697 within the human gut microbiota using alginate-poly-L-lysine-alginate microencapsulation oral delivery system: an in vitro analysis using a computer-controlled dynamic human gastrointestinal model
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Enrichment of Bifidobacterium longum subsp infantis ATCC 15697 within the human gut microbiota using alginate-poly-L-lysine-alginate microencapsulation oral delivery system: an in vitro analysis using a computer-controlled dynamic human gastrointestinal model

机译:使用藻酸盐-聚-L-赖氨酸-藻酸盐微囊口服给药系统富集人类双歧杆菌中长双歧杆菌婴儿亚种ATCC 15697:使用计算机控制的动态人体胃肠道模型进行体外分析

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This study evaluates alginate-poly-L-lysine-alginate Bifidobacterium longum subsp. infantis ATCC 15697-loaded microcapsules to enrich the human gut microbiota. The cell survival of alginatepoly-L-lysine-alginate microencapsulated B. infantis ATCC 15697 in gastric acid, bile, and through human gastrointestinal transit was investigated, as well as the formulation's effect on the gut microbiota. Results show that microencapsulation increases B. infantis ATCC 15697 cell survival at pH1.0 (33.54 +/- 2.80% versus <1.00 +/- 0.00%), pH1.5 (41.15 +/- 2.06% versus <1.00 perpendicular to 0.00%), pH2.0 (60.88 perpendicular to 1.73% versus 36.01 perpendicular to 2.63%), pH3.0 (75.43 perpendicular to 1.23% versus 46.30 +/- 1.43%), pH4.0 (71.40 +/- 2.02% versus 47.75 +/- 3.12%) and pH5.0 (73.88 +/- 3.79% versus 58.93 +/- 2.26%) (p < 0.05). In addition, microencapsulation increases cell survival at 0.5% (76.85 perpendicular to 0.80% versus 70.77 perpendicular to 0.64%), 1.0% (59.99 perpendicular to 0.97% versus 53.47 perpendicular to 0.58%) and 2.0% (53.10 +/- 1.87% versus 44.59 +/- 1.52%) (p < 0.05) (w/v) bile. Finally, daily administration of alginate-poly-L-lysine-alginate microencapsulated B. infantis ATCC 15697 in a human gastrointestinal model induces a significant enrichment of B. infantis within the ascending (184.51 +/- 17.30% versus 53.83 +/- 17.82%; p < 0.05), transverse (174.79 +/- 25.32% versus 73.17 +/- 15.30%; p < 0.05) and descending (94.90 +/- 25.22% versus 46.37 +/- 18.93%; p > 0.05) colonic microbiota.
机译:这项研究评估藻酸盐-聚-L-赖氨酸-藻酸盐长双歧杆菌亚种。装有ATCC 15697的婴儿微胶囊,可丰富人类肠道菌群。研究了藻酸盐-聚-L-赖氨酸-藻酸盐微囊化的婴儿芽孢杆菌ATCC 15697在胃酸,胆汁中以及通过人类胃肠道运输的细胞存活率,以及该制剂对肠道菌群的影响。结果表明,微囊封装可提高pH.1.0(33.54 +/- 2.80%对<1.00 +/- 0.00%),pH1.5(41.15 +/- 2.06%对<1.00与垂直于0.00%)的婴儿双歧杆菌ATCC 15697细胞存活率),pH2.0(垂直于1.73%的60.88和垂直于2.63%的36.01),pH3.0(垂直1.23%的75.43与46.30 +/- 1.43%垂直),pH4.0(71.40 +/- 2.02%与47.75 + /-3.12%)和pH5.0(73.88 +/- 3.79%对58.93 +/- 2.26%)(p <0.05)。此外,微囊封装可将细胞存活率分别提高到0.5%(垂直于0.80%的76.85与垂直于0.64%的70.77),1.0%(垂直于0.97%的59.99与垂直于0.58%的53.47)和2.0%(53.10 +/- 1.87%对) 44.59 +/- 1.52%)(p <0.05)(w / v)胆汁。最后,在人胃肠道模型中每天施用藻酸盐-聚-L-赖氨酸-藻酸盐微囊化的婴儿芽孢杆菌ATCC 15697会导致婴儿芽孢杆菌在上升中显着富集(184.51 +/- 17.30%对53.83 +/- 17.82% ; p <0.05),横向(174.79 +/- 25.32%对73.17 +/- 15.30%; p <0.05)和下降(94.90 +/- 25.22%对46.37 +/- 18.93%; p> 0.05)。

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