title: The combined effect of cefazolin and oxytertracycline on biogas production from thermophilic anaerobic digestion of dairy manure.
abstract: The individual and combined effect of cefazolin (CFZ) and oxytetracycline (OTC) on thermophilic anaerobic digestion (55°C) of dairy manure in batch digesters was investigated. Methane productions from the concentrations tested (30, 60 and 90 mg L(-1)) were compared with no-antibiotic control. CFZ concentrations showed no inhibition (P>0.05) for methane production. The individual OTC and combined CFZ and OTC at concentrations of 30, 60 and 90 mg L(-1) represented 79.1%, 70.3%, 68.6% (P<0.05) and 88.5%, 82.7%, 70.3% (P<0.05) respectively, of the control values. The high CH4 production, optimal pH and VFA data during digestion indicated the process stability and treatment efficiency.
authors: Department of Environmental Hygiene, Obihiro University of Agriculture and Veterinary Medicine, Obihiro 080-8555, Japan.
authors: Nilmini
authors: N
authors: Beneragama
authors: Suraju A
authors: SA
authors: Lateef
authors: Masahiro
authors: M
authors: Iwasaki
authors: Takaki
authors: T
authors: Yamashiro
authors: Kazutaka
authors: K
authors: Umetsu
mesh_terms: D000693:Anaerobiosis / Q000187:drug effects; D056804:Biofuels / Q000382:microbiology*; D019149:Bioreactors / Q000382:microbiology; D001709:Biotechnology / Q000295:instrumentation / Q000379:methods*; D002437:Cefazolin / Q000494:pharmacology*; D003612:Dairying; D005232:Fatty Acids, Volatile / Q000032:analysis; D006863:Hydrogen-Ion Concentration / Q000187:drug effects; D008372:Manure / Q000382:microbiology*; D008697:Methane / Q000096:biosynthesis; D010118:Oxytetracycline / Q000494:pharmacology*; D013696:Temperature
chemical_list: D056804:Biofuels; D005232:Fatty Acids, Volatile; D008372:Manure; D002437:Cefazolin; D008697:Methane; D010118:Oxytetracycline