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Another pigment found in the leaves of many plants is carotene. Carotene absorbs blue-green and blue light. The light reflected from carotene appears yellow. Carotene is also a large molecule (C 40 H 36) contained in the chloroplasts of many plants.
Carotene is a lipochrome that normally adds yellow color to the skin. With elevated blood levels of carotene, the prominence of this yellowing is increased. Carotenemia may be particularly evident when the stratum corneum is thickened or when the subcutaneous fat is strongly represented.athophysiology. Carotenoids are pigments of plant origin and are responsible for the yellow and orange color of fruits and vegetables. Carotenoids act as antioxidants, affect cell growth regulation, and modulate gene expression and immune response.