EFFECTS OF ACETIC ACID AND HYDROGEN PEROXIDE ON THE MICROBIOLOGICAL QUALITY AND SKIN APPEARANCE OF POULTRY CARCASSES

Abstract

The microbiological quality and skin appearance of poultry carcasses were determined after acetic acid and hydrogen peroxide spray. Acetic acid at 1% concentrations showed a significant effect(P<0.05)in reducing total mesophilic bacteria count, total coli form count, Escherichia coli count and Staphylococcus aureus count when compared with a sample without treatment,10.50x103,1.03x103,7.5x101,1.05 x102 and 27.47x103, 2.71x103, 4.41x102, 2.74x102 cfu/cm2 respectively. No differences were observed in skin appearance due to 1% acetic acid treatment. Hydrogen perioxide at 1% concentrations did not significantly(P>0.05) effect the microbial load when compared with asample without treatment,26.33x103, 2.61x103,3.70x102,2.63x102and 27.47x103 ,2.71x103,4.41x102,2.74x102 cfu/cm2 respectively. The skin of carcasses treated with H2O2 ,was bleached and bloated.