Yonekura Lina, Nagao Akihiko
National Food Research Institute, National Agriculture and Food Research Organization, Tsukuba, Ibaraki.
Biosci Biotechnol Biochem. 2009 Jan;73(1):196-9. doi: 10.1271/bbb.80510. Epub 2009 Jan 7.
We evaluated the effects of soluble fibers on beta-carotene and lutein micellization during simulated digestion in vitro, and on carotenoid uptake from mixed micelles by Caco-2 cells. Medium- and high-viscosity alginates and pectins inhibited carotenoid micellization and cellular uptake relative to the fiber-free control. Alginates, carboxy-methylcelluloses, and methylcelluloses inhibited beta-carotene uptake mainly by increasing medium viscosity, but pectins might inhibit carotenoid uptake by additional mechanisms.