ビタミンB_2脂肪酸エステルにかんする研究 : (XVI)リボフラビンテトラらく酸エステル-^<14>C注射後のネズミ胆汁中へのビタミンB_2の排泄について

概要

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Riboflavin-2-^<14>C or its tetrabutyrate was injected to rats and the excretion of riboflavin and its butyrate into bile and feces was studied. In the case of riboflavin-2-^<14>C injection (400μg, total count 2.19×10^5cpm), 41.25μg (total count 6.58×10^3cpm) were excreted into bile during 3 hours after the injection and 40.9μg (total count 2.07×10^3cpm) into feces during 72 hours after the injection. In the case of riboflavin tetrabutyrate-2-^<14>C injection (400μg in terms of riboflavin, total count 2.19×10^5cpm), only 6.75μg (total count 2.14×10^3cpm) of riboflavin and riboflavin tetrabutyrate was excreted into bile during 3 hours after the injection, 74.6μg (total count 4.68×10^3cpm) into feces during 72 hours after the injection.
日本ビタミン学会の論文
1968-03-25