Food Science of Animal Resources (한국축산식품학회지)

Korean Society for Food Science of Animal Resources (한국축산식품학회)
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Physicochemical and Textural Properties, and Shelf-Life Effects of Low-fat Sausages Manufactured with Various Levels of Activated Lactoferrin during Refrigerated Storage

활성 락토페린을 첨가한 저지방 세절소시지의 냉장 저장(8°C)중 이화학적, 조직적 및 저장 특성

  • Kang, In-Hye (Department of Animal Science and Biotechnology Research Institute, Chonnam National University) ;
  • Lee, Hong-Chul (Department of Animal Science and Biotechnology Research Institute, Chonnam National University) ;
  • Chin, Koo-Bok (Department of Animal Science and Biotechnology Research Institute, Chonnam National University)
  • 강인혜 (전남대학교 동물자원학부 및 생물공학연구소) ;
  • 이홍철 (전남대학교 동물자원학부 및 생물공학연구소) ;
  • 진구복 (전남대학교 동물자원학부 및 생물공학연구소)
  • Published : 2008.10.31
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Abstract

Low-fat sausages (LFS) containing various levels (0, 0.3, and 0.6%) of activated lactoferrin (ALF) which was prepared by dialysis to chelate irons of native lactoferrin, were manufactured and measured the physicochemical and textural properties, and shelf-life effect during refrigerated storage ($8^{\circ}C$). LFSs contained 72-16% moisture, 1-2% fat, 12-14% protein and a pH range of 6.04-6.08. No differences in physico-chemical and textural properties were observed with the increased ALF (p>0.05). Microbial growth of Listeria monocytogenes (LM), which inoculated at the levels of $10^4$ CFU/g, was increased with increased storage time. ALF at the amount of 0.6% slightly inhibited the microbial growth on the LFS (p<0.05), as compared to those of LFSs without ALF, however it had lower antimicrobial activity than those of 3.3% sodium lactate. These results indicated that the addition of ALF at the level of 0.6% affected the antibacterial activity of LFSs, resulting in the suppression of microbial growth in LFSs without quality defects.

본 연구에서 제조한 저지방 훈연 소시지는 활성락토페린을 각각 0, 0.3 및 0.6%로 함량을 달리하였고, 냉장저장($8^{\circ}C$)중 이화학적 및 조직학적 특성과 접종 미생물의 성장에 미치는 영향을 조사하기 위해 실시하였다 제조된 저지방 훈연소시지의 pH, 수분, 지방, 및 단백질의 함량은 각각 6.04-6.08, 72-76%, 1-2%, 12-14%로 처리구별 유의적인 차이가 없었다(p>0.05). 활성락토페린을 0.6% 첨가한 처리구는 0.3% 첨가구와 달리 무첨가 대조구에 비해 미생물의 성장을 억제하였으며(p<0.05), 유의적으로 높은 부서짐성을 보였다. 그러나 젖산나트륨 3.3%를 첨가에 의한 항균활성 효과보다는 낮은 효과로 평가되었다. 이상의 결과를 종합해 본 결과 락토페린은 육제품에 있어서 이화학적 및 조직학적성상에 거의 영향을 주지 않으면서 항균활성을 부여하는 좋은 기능성 물질로서 이용할 수 있을 것으로 판단된다.

Keywords

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