Abstract
AbstractTo verify its antibacterial activity, recombinant human lactoferrin (rhLF) was extracted from the milk of transgenic mice (Mus musculus) (PCL25and AP) by gel filtration chromatography and analysed by sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE), Western blot and enzyme-linked immunosorbent assay (ELISA). In addition, its bacteriostatic properties were tested using the agar disc diffusion method. ELISA analysis showed that the concentration of rhLF in the milk of transgenic mice ranged from 7 to 8 mg/ml, and the recombinant protein expressed in the milk had the same molecular weight as the native protein (~78 kDa), indicating that the rhLFs had a strong antibacterial activity onEscherichia coliandSalmonella.
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