Journal
CARBOHYDRATE POLYMERS
Volume 263, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2021.117984
Keywords
Nanocellulose; Permeability; In vitro mucus model; Bile acids; Cholesterol; Absorption; Caco-2 monolayer model
Categories
Funding
- USDA National Institute of Food Agriculture [2019-67021-29859, 1019017]
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The study found that CNC may not penetrate the small intestinal lining and could be used as a functional supplement.
Cellulose nanocrystals (CNC) as a novel ingredient in foods and pharmaceuticals still lacks the safety and functionality information. We aimed to assess the absorption of CNC in small intestine and the effect on cell viability. In the second part, the impact of CNC on substance permeation through mucus layer, including the potential functionality in improving high blood cholesterol, was tested. No noticeable amount of CNC was found to penetrate through differentiated Caco-2 monolayer and in vitro mucus layer, and CNC had low toxicity on Caco-2 cell viability up to 10 mg/mL. CNC at 2 % (w/w) may affect the permeability of the mucus layer and larger molecules are more easily influenced. CNC may also alleviate hypercholesteremia by increasing viscosity of digesta, adsorbing cholesterol, and decreasing bile acids permeation. The results suggest CNC may not penetrate the small intestinal lining and may be used as a functional supplement.
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