Scholarlink

<p>Phytosterol (PS) face challenges of poor stability and rapid release in the gastrointestinal tract. To overcome these limitations, this study developed whey protein-chitosan composite (WP-CS-PS) nanoparticles via reverse solvent precipitation, significantly enhancing PS transport efficiency and functional performance. Through systematic optimization using single-factor and orthogonal tests, the nanoparticles were fabricated under ideal parameters. The optimal conditions included a 1:1 WP/CS mass ratio, 0.8% (w/v) PS concentration, 60&#xa0;°C hydration, and 15&#xa0;min stirring, which yielded high encapsulation efficiency (77.43%), uniform particle size (203.41&#xa0;nm, PDI 0.265), and excellent colloidal stability (zeta potential − 35.42 mV). Structural analyses (SEM, FT-IR) revealed a dense gel-network morphology with PS successfully embedded via hydrogen bonding and electrostatic interactions. The WP-CS matrix markedly improved PS stability against thermal, UV, and storage stresses, while in vitro digestion assays demonstrated sustained intestinal release (17.72% slower than free PS). These results not only validate WP-CS-PS as a robust carrier for lipophilic bioactives but also offer a scalable strategy to enhance the bioavailability of PS in functional foods, potentially addressing global health needs such as cholesterol management and dietary supplementation. By bridging material science and nutritional delivery, this work paves the way for sustainable nutraceutical innovations with broad industrial applicability.</p> Graphical Abstract <p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Phytosterol nanoparticle delivery system based on whey protein-chitosan: enhanced stability, bioavailability, and sustained-release properties

  • 期刊论文

  • 发表日期：

    2025年10月30日

查看全文
  • Tingting Yang,
  • Guanhua Tao,
  • Xinye Xu,
  • Chunyu Yu,
  • Jindou Shi,
  • Qingwen Ma

摘要

Phytosterol (PS) face challenges of poor stability and rapid release in the gastrointestinal tract. To overcome these limitations, this study developed whey protein-chitosan composite (WP-CS-PS) nanoparticles via reverse solvent precipitation, significantly enhancing PS transport efficiency and functional performance. Through systematic optimization using single-factor and orthogonal tests, the nanoparticles were fabricated under ideal parameters. The optimal conditions included a 1:1 WP/CS mass ratio, 0.8% (w/v) PS concentration, 60 °C hydration, and 15 min stirring, which yielded high encapsulation efficiency (77.43%), uniform particle size (203.41 nm, PDI 0.265), and excellent colloidal stability (zeta potential − 35.42 mV). Structural analyses (SEM, FT-IR) revealed a dense gel-network morphology with PS successfully embedded via hydrogen bonding and electrostatic interactions. The WP-CS matrix markedly improved PS stability against thermal, UV, and storage stresses, while in vitro digestion assays demonstrated sustained intestinal release (17.72% slower than free PS). These results not only validate WP-CS-PS as a robust carrier for lipophilic bioactives but also offer a scalable strategy to enhance the bioavailability of PS in functional foods, potentially addressing global health needs such as cholesterol management and dietary supplementation. By bridging material science and nutritional delivery, this work paves the way for sustainable nutraceutical innovations with broad industrial applicability.

Graphical Abstract