after extraction and preliminary cleanup chromatography with n-hexane or chloroform , the mycotoxins ochratoxin a , citrinin , penicillic acid , sterigmatocystin , and zearalenone were easily separated by thin layer chromatography ( tlc ) using toluene-ethyl acetate-90 % formic acid ( 6 + 3 + 1 ) developing solvent .
C0026955
mycotoxins
C0038274
sterigmatocystin