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Shenfu coal (SFC) and 6h UV-oxidized Shenfu coal (6h-UV-OSFC) were converted by penicillium citreo-viride (PCV) m dynamic salts medium.SFC, 6h-UV-OSFC and their bioconversion residual coal (PCV-SFC, 6h-UV/PCV-OSFC)were extracted with acetone, and then the residues were extracted by THF.The results show that acetone extraction yield of the bioconversion residues reduced significantly due to photo-oxidized pretreatment.