�ber den Einflu� verschiedener Polyphosphate auf den Kupferstoffwechsel der Ratte

Availability of minerals in foods of plant origin

“…These results partly agree with experiments of Mills (1954Mills ( , 1956) who found an increased rate of Cu absorption after giving organic complexing agents from herbage extracts with high constants of Cu association. The results of Havinga & Bykerk (1947) and of Schreier et al (1957) may also be interpreted in this way. On the other hand, the rapid absorption of stable complexes is certainly limited, for instance by the molecular size.…”

“…Hence the question arose, whether these findings could be reproduced in the living animal. T o examine the absorption rate of several Cu compounds in vivo we chose the rat liver test which has been used by Schultze, Elvehjeni & Hart (1934), Schreier, Kretz & Yang (1957), Mills (1955 as well as by Dutt & Mills (1960). We gave weanling female rats a purified diet deficient in Cu for a depletion period of 4 weeks.…”