Degradation of Veterinary Drug Residues by Electrolysis
Article
Figures
Metrics
Preview PDF
Reference
Related
Cited by
Materials
Abstract:
This study used two commercially available electrolytic cleaners as experimental objects to examine their abilities to degrade veterinary drug residues. The degradation efficiency and influencing factors for the two cleaners to degrade substances like penicillins, sulfonamides, fluoroquinolones, tetracyclines, and β-agonists were investigated by the enzyme-linked immunosorbent assay kit and colloidal gold test strips. The effects of the electrolytic cleaner on the residual veterinary drug in actual pork and pig liver samples were studied by HPLC. The results show that the electrolytic cleaners could effectively degrade penicillins, sulfonamides and β-agonists in aqueous solutions, but exhibited low degradation efficiency towards other compounds such as enrofloxacin, ciprofloxacin and ofloxacin. For the malachite green solution at 50 mg/L, the cleaner 1 (power: DC24V/2.5A) took 6 min for complete degradation, whilst the cleaner 2 (power: DC24V/5A) only required 2 min. For the malachite green solution at100 mg/L, the degradation was completed in 2 min in the presence of NaCl at 100 mg/L and in 4 min with 50 mg/L NaCl, but not completed with 25 mg/L NaCl even up to 10 min. The addition of 0.5% serum to the malachite green solution could not enable the cleaner to complete the degradation within 10 min. The residual amount of salbutamol, enrofloxacin, ciprofloxacin, sulfamethoxazole and sulfamethoxazole pyrimidine remained over 80%, after the pork and pig liver samples were subjected to the cleaner. The experimental results showed that the performance of the electrolytic cleaner was greatly affected by the power of the equipment, type and concentration of electrolyte, presence of serum and state of the samples. The degradation of residual compounds in meat products by using electrolytic cleaners is affected by many influencing factor, thus, this approach cannot ensure the effective removal of veterinary drug residues in meat products.
