Table 2.
The Cr intake and minimum absorption of rats in the groups fed experimental diets
Experimental dietsa | ||||||||
---|---|---|---|---|---|---|---|---|
FF | FF + Cr | CEL | CEL + Cr | PEC | PEC + Cr | CEL + PEC | CEL + PEC + Cr | |
Cr intake (μg/day) | 1.69 ± 0.19A | 36.8 ± 3.16B | 1.99 ± 0.21A | 34.5 ± 3.85B | 3.80 ± 0.63A | 38.3 ± 1.61B | 1.96 ± 0.24A | 34.5 ± 1.63B |
Cr excretion in urine (μg/day) × 10−2 | 2.02 ± 0.23A | 2.60 ± 0.31AB | 3.59 ± 0.21AB | 6.83 ± 0.44CDE | 3.84 ± 0.39ABD | 7.28 ± 0.35CE | 5.35 ± 0.42BE | 8.60 ± 2.89C |
Urinary excretion rate (%)b | 1.19 ± 0.14AB | 0.07 ± 0.02B | 1.84 ± 0.50AC | 0.19 ± 0.08BD | 1.01 ± 0.74ABD | 0.19 ± 0.03BD | 2.73 ± 1.35C | 0.25 ± 0.06BD |
The data are presented as the mean ± SD. The values in the same row that do not share the same superscript letter are significantly different (analysis of variance, P < 0.05)
FF a fiber-free diet, CEL a diet with 5 % cellulose, PEC a diet with 5 % pectin, CEL + PEC a diet with 2.5 % cellulose and 2.5 % pectin
aThe diets differ in fiber content and Cr content
bUrinary excretion rate (%) = (Cr excreted in rat urine (μg/day) / Cr intake (μg/day)) × 100 %