無機質代謝に関する研究 (1)
日本の日常食における銅の出納状態について
1960 年 18 巻 3 号 p. 77-80
詳細
1960 年 18 巻 3 号 p. 77-80
It is not yet exactly known how much copper is taken by us through the daily diet, and also the mutual relation between the actual intake of copper and its requirement is unknown.
This observation was performed as a preliminaly test of the copper balance experiments in parallel with the experiment on calcium metabolism.
No consideration was given to the copper content of the experimental diet but omitted the foods which contained rich calcium.
Five healthy women (A-D 21 yrs. and E 40 yrs. old) were the subjects of this experiment. The copper metabolism was observed during 20 days period being divided into 4 studia of 5 days each.
Samples of the diets as well as of feces and urine corresponding to the diets were all collected and analysed.
Colorimetric method with use of dithizone was employed for the analysis of copper.
The data obtained are shown in table 3. It was found that the 7.6mg. of copper was taken from the daily diets, and 2.4mg. was excreted.
