Product Quality of Low-fat/salt Sausages Containing Lactoferrin and Antimicrobial Activity Against Escherichia coli O157:H7

락토페린을 첨가한 저지방/저염 소시지의 품질 및 Escherichia coli O157:H7에 대한 항균 활성에 미치는 효과

  • 이홍철 (전남대학교) ;
  • 진구복 (전남대학교)
  • Published : 2006.08.31


This study was performed to determine potential antimicrobial activity of lactoferrin, which incorporated into the low-fat/salt sausages during storage either at 30 or 4℃. First, the model study on the antimicrobial activity of lactoferrin was performed. Based on the model study, more than 0.25% of lactoferrin was required to have a distinctive antimicrobial activity for the growth of E. coli O157:H7 in the broth. However, extended shelf-life was not shown in the low-fat/salt sausages manufactured with lactoferrin during refrigerated storage. In addition, no synergistic effects of lactoferrin with sodium lactate were observed in the sausages. These results indicated that the addition of lactoferrin into the low-fat sausages did not have antimicrobial activity of E. coli O157:H7, due to the denaturation of lactoferrin or the complexity of the sausage, even though it had a distinctive antimicrobial effect in the model study.


Lactoferrin;Antimicrobial activity;Low-fat/salt sausages;E. coli O157:H7; Sodium lactate


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