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Updated: Feb 24, 2026

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基于木质半纤维素的空心微囊在保护墙内捕获益生菌
Thao M Ho1, Marko Vehkamäki2, Lisbeth G Thygesen3
1Department of Food and Nutrition, University of Helsinki, P.O. Box 66, FIN-00014 Helsinki, Finland; Helsinki Institute of Sustainability Science (HELSUS), University of Helsinki, P.O. Box 65, FIN-00014 Helsinki, Finland.
Journal of colloid and interface science
|February 22, 2026
概括
研究人员研究了微囊结构,以更好地输送益生菌,如乳酸菌 (Lacticaseibacillus rhamnosus GG (LGG)). 他们发现LGG益生菌嵌入了保护层,推进了稳定的输送系统.
科学领域:
- 生物聚合物科学和材料工程.
- 食品科学与技术.
- 制药科学和药物输送.
背景情况:
- 生物活性固体的微封装,就像益生菌一样,由于复杂的生物聚合物保护材料,面临着挑战.
- 了解微囊微结构和层架构对于优化核心稳定性,功能性和目标交付至关重要.
研究的目的:
- 研究基于生物聚合物的固核微囊模型的内部微结构,核心分布和保护层架构.
- 用特定的益生菌和多糖化合物组合,阐明喷雾干燥过程中微囊形成机制.
主要方法:
- 利用先进的结构和组成技术来分析微囊.
- 专注于 Lacticaseibacillus rhamnosus GG (LGG) 益生菌,涂有软木银球糖 (GGM) 和硬木葡萄糖 (GX).
- 采用喷雾干燥作为微封装方法.
主要成果:
- 揭示了空洞的微囊,其中较小的颗粒具有更厚的保护层.
- 发现LGG细胞嵌入在表面附近的保护层中,与素残留物相互作用.
- 平均保护层厚度 (3.4-3.9μm) 对于多个益生菌细胞来说是足够的,其中空心的核心基本上是空的.
结论:
- 对基于生物聚合物系统的微囊形成和结构功能关系的高级理解.
- 这些发现支持设计稳定,有针对性的益生菌和其他固体核心的输送系统.
- 强调了定制生物聚合物材料在食品,制药和医疗保健应用中的潜力.
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