Fig. 1 shows the contents of soluble fractions (CSF) and the
bioaccessibility of iron, calcium and zinc as well as copper in all
the samples. As shown in Fig. 1A, the CSF values for calcium, ranging
from 25.87 to 36.33 mg/kg dw, represented highest among all
the minerals in BR samples. Compared to SBR-HP0, GBR-HP0 was