ニンジンジュース連続飲用によるカロテノイドの体内蓄積と排泄

概要

論文の詳細を見る
Dietary carotenoids are absorbed from the digestive tract and distributed in tissues and fluids in the body. However, little is yet known on their absorption and metabolism. The purpose of this study was to investigate the absorption and excretion of carotenoids in human after continual in, gestion of carrot juice. ln this study, we used carrot juice as sample because carrot juice is the best β-carotene source as human food. Seven healthy female subjects were ingested 2 cans of carrot juice per day for 2 weeks. The concentration of carotenoids (β-carotene, lycopene, xanthophyll) and retinol in human serum and feces were measured before and after continual ingestion. Serum β-carotene level after ingestion was very high level, but it decreased smoothly over 3 weeks. This suggests that continual ingestion of carrot juice was effective for the accumulation of serum β-carotene. In the case of fecal β-carotene level, the content was increased significantly and fecal lycopene level also increased a little. From this result, carotenoids interaction was observed between β-carotene and lycopene. Probably, because of the rapid increase internal β-carotene level when the subjects ingested carrot juice, accumulating lycopene would be squeezed out of the body.
昭和女子大学の論文
2005-03-31