Figure 4: EDS spectra of the biomass of (a) P. valderianum BDU20041 and (b) O. willei BDU130791 grown in ASN III medium and in ossein effluent (c and d). Precipitates obtained by the growth of P. valderianum BDU20041 (e) and O. willei BDU130791 (f) in ossein effluent.