Abstract
Summary and Discussion
These experiments show definitely that carotene administered parenterally may be effectively utilized provided the carotene has been water-solubilized by solution in Tween 80. In such a solution not only is there a much more rapid transport of carotene from the site of an intramuscular injection, but there also occurs an effective conversion to vitamin A as demonstrated by the resumption of growth in vitamin A-depleted rats. These findings offer further support to the accumulating evidence 3 , 4 that the state of dispersion of the carotene is of importance for participation in the physiological processes of absorption, transport and enzymatic conversion to vitamin A.
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