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The Membrane Society of Korea (한국막학회)
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Separation of Lysozyme from Chicken Egg White by Ultrafiltration (1) - Dead-end Filtration of Egg White Solution -

한외여과에 의한 계란 난백으로부터 라이소자임의 분리 (1) - 난백용액의 전량여과 -

  • Park, Hye-Ri (Department of Engineering Chemistry, Chungbuk National University) ;
  • Youm, Kyung-Ho (Department of Engineering Chemistry, Chungbuk National University)
  • 박혜리 (충북대학교 공과대학 공업화학과) ;
  • 염경호 (충북대학교 공과대학 공업화학과)
  • Received : 2016.07.09
  • Accepted : 2016.07.31
  • Published : 2016.08.31
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Abstract

The separation and purification of lysozyme enzyme from chicken egg white (CEW) solution was studied using the dead-end filtration. The optimum operation conditions of the dead-end filtration reveal that the maximum value of permselectivity of lysozyme to the other proteins of ovalbumin and conalbumin in the CEW solution was tested with change of molecular weight cut-off (MWCO) of ultrafitration membrane and pH of the CEW solution. The optimum operation conditions for the efficient permeable separation of lysozyme from the CEW solution are that the membrane MWCO is 30 kD and the pH of CEW solution is 11. At this optimum operation conditions, the maximum value of permselectivity of lysozyme to total proteins in CEW solution is about 83.

전량여과(dead-end filtration)를 사용하여 계란 난백용액으로부터 라이소자임 효소의 분리정제에 대한 연구를 수행하였다. 전량여과 시 사용된 한외여과 막의 분획분자량과 난백용액의 pH 변화에 따른 라이소자임의 난백에 존재하는 다른 종류의 단백질인 오발부민과 콘알부민에 대한 막을 통한 투과선택도(permselectivity)를 측정하여 투과선택도가 가장 큰 값을 나타내는 전량여과의 최적 운전조건을 결정하였다. 이 결과 난백용액으로 라이소자임을 효과적으로 투과 분리시키기 위한 최적 운전조건은 한외여과 막의 분획분자량 30 kDa, 난백용액의 pH 11이었다. 최적 운전조건에서 난백 내 총 단백질에 대한 라이소자임의 투과선택도가 약 83의 가장 큰 값을 나타내었다.

Keywords

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