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Petrifilm與傳統方法比較種類AerobicCountPlate大腸桿菌群/大腸桿菌(coliform/E.coli)大腸桿菌(Escherichiacoli)MaterialsandmethodsBacteriamixture(fromalltwobacterialspecies)Onetube/benchDilutiondiluteto-8(8tubes/group)APCAddonemLof-7and-8Eachdilutionhastwofilms(total4films)ColiformAddonemLof-8Eachdilutionhasonefilm(total1films)E.coli/coliformAddonemLof-8Eachdilutionhasonefilm(total1films)取1ml稀釋液滴於Petrifilm上APC:35℃,48hourColiform/E.coli:24hincubationStaphylcoccus:24hourAPC