Neonatal diarrhea of pigs is caused by porcine Rota virus. Thus, the development of an optimum process for a safe and effective Rota virus vaccine is keenly required. For an effective vaccine, high virus titer is needed, and vaccine should be produced in a serum free medium for a safe vaccine. Therefore, the production of Rota virus vaccine was tried using MA104 cells in a serum free medium, and the kinetics of cell growth and optimum condition for Rota virus production were investigated. Maximum virus titer of 6.39x106 pfu/㎖ was achieved by the addition of 0.2% trypsin 20 / ㎕ ㎖ at infection time and 3㎕/ ㎖ during post-infection period, with MOI of 0.1, infection time of 3 day, harvest time of 3 day. Cell growth kinetics showed that the maximum cell density with serum containing medium(RPMI1640 with 3% FBS) was about 25% higher than that with serum free medium(VP-SFM). Thus two approach; Rota virus production in no-serum medium (MEM-a) and serum free medium(VP-SFM) were tried. The maximum virus titer of 6.75x106 pfu/㎖ was observed in no-serum medium, and titer of 6.39x106 pfu/㎖ in serum free media. The optimum production strategy will be discussed based on virus titer and operability of bioreactor, and optimum production conditions will be suggested.
저자
Sang-Kyoon Lee [ Department of Molecular & Medical Biotechnology, School of Biotechnology,Kangwon National University ]
Annaev Narbay [ Department of Molecular & Medical Biotechnology, School of Biotechnology,Kangwon National University ]
Yeon-Ho Jeong [ Department of Molecular & Medical Biotechnology, School of Biotechnology,Kangwon National University ]
한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
설립연도
1984
분야
공학>생물공학
소개
이 법인은 생물 공학의 발전과 보급에 이바지하고, 회원 상호 간의 연구 협력과 친목을 도모함을 목적으로 한다
1. 생물공학 분야의 발전을 위한 연구 협력
2. 생물공학의 실용화를 촉진시키기 위한 산학 협동
3. 학술연구 발표회, 강연회, 연수회 등 학술활동의 개최
4. 국,영문 학술지,소식지,학술회의 Proceedings 및 학술도서의 발간
5. 생물공학 발전을 위한 정책 건의
6. 기타 국제 교류 등 본 학회의 목적 달성을 위한 제반 활동