| Samples |
Cu |
Fe |
Zn |
| ORC |
21.29 ± 0.47a |
40.93± 0.88a |
22.22 ± 0.59a |
| COC |
25.03 ± 0.22b |
45.70± 0.51b |
27.08 ± 0.99b |
| IORC 5% |
<LOD |
<LOD |
2.53 ± 0.12a |
| ICOC 5% |
<LOD |
<LOD |
2.73 ± 0.12a |
| IORC 10% |
<LOD |
<LOD |
2.50 ± 0.20a |
| ICOC 10% |
<LOD |
<LOD |
2.27 ± 0.06a |
| IORC 20% |
<LOD |
<LOD |
2.93 ± 0.03a |
| ICOC 20% |
<LOD |
<LOD |
1.80 ± 0.03b |
|
| conventional coffee; ORC=organic coffee; ICOC=infusion conventional coffee;
IORC=infusion organic coffee; LOD=limit of detection. a,b Statistical difference of
powders and between each infusions concentration by Student’s t-test (p<0.05). |
| Table 4: Mineral composition of the powder and the coffee infusions (mg kg-1)
(mean ± SD) (n=4). |
