Abstract
Summary
The absorption of 3H-labeled folate incorporated in rat liver from small intestine segments of rats has been studied.
The absorption of liver folate from the jejunum and the ileum was highly efficient. Boiling the liver before feeding did not affect the jejunal absorption, but reduced markedly the availability of folate for ileal absorption, while frying the liver had no such effect.
Contrary to the observation with crystalline PGA, folate depletion or folate overload prior to feeding did not alter the absorption of liver folate.
The authors are indebted to Dr. J. Selhub for carrying out the chromatography of the liver folates.
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