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Construction and efficacy evaluation of chitosan-based nanoparticles for colon-targeted release of linoleic acid in
Xin Wang1, Haiqin Chen1, Bo Yang1
1State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, PR China.
Insights
This study developed a colon-targeted delivery system for long chain fatty acids using chitosan nanoparticles. The system successfully delivered linoleic acid to the colon in rat pups without adverse health effects.
Area of Science:
- Biomedical Engineering
- Nanotechnology
- Nutritional Science
Background:
- Long chain fatty acids are crucial for infant development.
- Targeted delivery of fatty acids to the colon remains a challenge.
Purpose of the Study:
- To create a colon-targeted delivery system for long chain fatty acids in rat pups.
- To utilize linoleic acid as a model fatty acid for this delivery system.
Main Methods:
- Synthesis of linoleic acid-loaded chitosan nanoparticles (LA-CS NPs) via ionic crosslinkage.
- Characterization of nanoparticle morphology and encapsulation efficiency.
- In vivo distribution studies in rat pups to assess colonic delivery.
- Evaluation of the safety and health effects of the delivery system in rat pups.
Main Results:
- LA-CS NPs exhibited spherical morphology and high encapsulation efficiency (84.96%).
- Significant increase in colonic linoleic acid concentration observed 12 hours post-administration.
- Oral administration of chitosan nanoparticles and LA-CS NPs showed no detrimental health effects in rat pups.
Conclusions:
- The developed LA-CS NPs represent a promising strategy for colon-targeted fatty acid delivery.
- This system has potential applications in infant nutrition and development.
- Further research can explore broader applications of this nanoparticle-based delivery system.
Abstract:
Long chain fatty acids in the colon play important roles in infant development. This study aimed to establish a colon-targeted long chain fatty acid release system in rat pups, with linoleic acid (LA) as the target model. LA-loaded chitosan nanoparticles (LA-CS NPs) synthesized via ionic crosslinkage showed spherical surface morphology and favorable encapsulation efficiency (84.96 %). In vivo distribution studies of LA-CS NPs demonstrated a significant increase in LA concentration in the colonic content after a 12-hour administration period. Additionally, oral administration of the delivery system (CS NPs: 18 μg/g/d, LA-CS NPs: 24 μg/g/d) exhibited no detrimental effects on the health of rat pups. In conclusion, this study presents a promising strategy for the targeted delivery of fatty acid to the colon in rat pups.
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