التنقية الجزئية للبكتريوسين المنتج من Pediococcus acidilactici-FMAC278 وWeissella paramesenteroides - DFR6 وتطبيقه في حفظ نقانق الدجاج

PARTIAL PURIFICATION OF BACTERIOCIN PRODUCED FROM PEDIOCOCCUS ACIDILACTICI-FMAC278 an‎d WEISSELLA PARAMESENTEROIDES-DFR6 an‎d ITS APPLICATION IN THE PRESERVATION OF CHICKEN SAUSAGES

Bacteriocins were partially purified by ammonium sulphate 50% concentraction, bacteriocin activity of Pediococcus acidilactici-FMAC278 was 25600 U/ml with 5.8 folds and 7.6% yeild, the activity decrease to 12800 U/ml after dialysis with 6.3 folds and 3% yield, On the other hand the bacteriocin activity of Weissella paramesenteroides-DFR6 was 12800 U/ml with 2.7 folds and 8.8% yeild, after dialysis the activity became 6400 U/ml with 5.1 fold and 3.4% yield, Chicken Sausage were made by adding 0.25, 0.5 and 1% particaly purified bacteriocin to study its effect on microorganisms and increasing shelf life of Sausage. It is found that bacterial numbers were decreased after 3 days of storage at refrigerator at 0.5% conc. While the molds decreased after 3 days of storage at refrigerator at 0.5% conc.