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Cold Ethanol Fractionation and Heat Inactivation of Hepatitis A Virus During Manufacture of Albumin from Human Plasma
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  • Cold Ethanol Fractionation and Heat Inactivation of Hepatitis A Virus During Manufacture of Albumin from Human Plasma
  • Cold Ethanol Fractionation and Heat Inactivation of Hepatitis A Virus During Manufacture of Albumin from Human Plasma
저자명
Kim. In-Seop,Park. Yong-Woon,Lee. Sung-Rae,Sung. Hark-Mo
간행물명
Biotechnology and bioprocess engineering
권/호정보
2004년|9권 1호|pp.65-68 (4 pages)
발행정보
한국생물공학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

The purpose of the present study was to examine the efficacy and mechanism of fraction IV cold ethanol fractionation and pasteurization (60$^{circ}C$ heat treatment for 10 h), involved in the manufacture of albumin from human plasma, in the removal and/or inactivation of the hepatitis A virus (HAV). Samples from the relevant stages of the production process were spiked with HAV and the amount of virus in each fraction then quantified using a 50% tissue culture infectious dose (TCID$\_$50/). HAV was effectively partitioned from albumin during the fraction IV cold ethanol fractionation with a log reduction factor of 3.43. Pasteurization was also found to be a robust and effective step in inactivating HAV, where the titers were reduced from an initial titer of 7.60 log TCID$\_$50/ to undetectable levels within 5 h of treatment. The log reduction factor achieved during pasteurization was $geq$4.76. Therefore, the current results indicate that the production process for albumin has sufficient HAV reducing capacity to achieve a high margin of virus safety.