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. 2012 Oct 10;96(5):1214S–1222S. doi: 10.3945/ajcn.111.032359

FIGURE 1.

FIGURE 1.

Simplified schematic illustration of absorption, metabolism, and transport of carotenoids. Adapted with permission from reference 3. BCO1, β-carotene 15,15′-oxygenase; BCO2, β-carotene-9′,10′-oxygenase; ISX, intestine-specific homeobox; SR-B1, scavenger receptor class B type 1.