• Title/Summary/Keyword: Vanderbilt University

검색결과 65건 처리시간 0.021초

Effect of Invertase on a Batch Foam Fractionation of Bromelain

  • Park, Don-Hee;Jr., Douglas.M.Ackermann;Stedman, Matthew.L.;Ko, Samuel;Prokop, Ale;Tanner, And Robert D.
    • 한국생물공학회:학술대회논문집
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    • 한국생물공학회 2002년도 생물공학의 동향 (X)
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    • pp.515-518
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    • 2002
  • The method of foam fractionation can be applied to enrich proteins from a dilute protein solution if the proteins are hydrophobic and foam. If a protein, such as invertase, is hydrophilic, a dilute solution containing this protein may not foam. In that case, a batch foam fractionation process may not be appropriate for recovering a concentrated solution of that protein. In this paper, various concentrations of invertase were added to a dilute solution containing bromelain (a hydrophobic protein), in order to determine how the presence of a hydrophilic protein can affect the recovery of the desired hydrophobic protein. The effect of invertase on bromelain recovery was studied here at an initial bulk solution pH of 5 and an air superficial velocity of 4.6 cm/s.

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Effect of Invertase on the Batch Foam Fvactionation of Bromelain

  • D. Micheal Ackermann;Jr., Matthew L. Stedman;Samuel Ko;Ales Prokop;Park, Don-Hee;Robert D. Tanner
    • Biotechnology and Bioprocess Engineering:BBE
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    • 제8권3호
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    • pp.167-172
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    • 2003
  • Foam fractionation can be used to enrich a hydrophobic protein such as bromelain from an aerated dilute protein solution because the protein foams. On the other hand, a protein such as invertase, which is hydrophilic, is not likely to foam under similar aerated conditions. While a foam fractionation process may not be appropriate for recovering a hydrophilic protein alone, it is of interest to see how that non-foaming protein affects the foaming protein when the two are together in a mixture. The bromelain enrichment, activity and mass recovery were observed as a function of the solution pH in order to explore how invertase can affect the recovery of bromelain in a foam fractionation process.

유방암과 CCND1, ESR1, CDK7 유전자 다형성의 상호작용; 로지스틱 회귀분석과 multifactor dimensionality reduction(MDR)의 분석 비교 (Gene-gene interaction of CCND1, ESR1 and CDK7 on the risk of breast cancer detected by multifactor dimensionality reduction and logistic regression)

  • 최지엽;;;이경무;노동영;유근영;;강대희
    • 대한예방의학회:학술대회논문집
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    • 대한예방의학회 2004년도 제56차 추계 학술대회 연제집
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    • pp.40.1-40.1
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    • 2004
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The Effect of Light on Champagne Yeast Cell Growth and Ethanol Production Under Variable pH Conditions

  • Collins, Paul C.;Schnelle, Karl B.;Malaney, Jr.George W.;Tanner, Robert D.
    • KSBB Journal
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    • 제6권2호
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    • pp.189-194
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    • 1991
  • The effect of wtlitc light on unaeraten growth of Baker's yeast and the accompanying ethanol production has been studied in a batch process at 27$^{\circ}C$. Over the 80-hour period of the Champagne yeast process without pH control, the cull growth was inhibited by the fluorescent light. Another observed difference between the runs is that the drop and subsequent rise in redox potential occurred much sooner in the fermentation with light than in the fermentation without light. This preliminary study indicated that ethanol production could be enhanced by light as the cell concentration is repressed. The possible pathway, shift of the sugar substrate toward ethanol and away from cells was manifested by another difference as well. As observed under the microscope, many of the yeast cells grown under light budded without dividing by the normal fission process as they did in the dark. Furthermore, the undivided and branched (light grown) cell did not agglutinate at the end of the fermentation process as did the distinct spherical (dark grown) cells.

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미국 테네시 주 벤더빌트대학교 영재교육센터 프로그램이 우리나라 영재교육에 주는 시사점 탐색 (The Implications of a Study on the Programs from Vanderbilt Programs for Talented Youth for the Korean Gifted Education)

  • 김성연
    • 영재교육연구
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    • 제24권2호
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    • pp.243-269
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    • 2014
  • 이 연구는 미국 테네시 주 벤더빌트대학교 영재교육센터에서 운영하는 프로그램을 통하여 우리나라 영재교육에 주는 시사점을 학생, 교원, 그리고 학부모 관점에서 제시하는데 그 목적이 있다. 벤더빌트대학교 영재교육센터 홈페이지, 벤더빌트대학교 영재교육센터에서 제공한 최신 자료, 벤더빌트대학교 영재교육센터 소장과의 면담, 그리고 벤더빌트대학교 영재교육센터에서 운영하는 프로그램에 직접 참여 또는 관찰함으로써 수집한 자료를 분석하였다. 분석 결과, 학생과 관련하여서는 조기영재선발, 인문학 기반의 간학문적 교육과정, 통합 교육과정 모형, 개별화학습계획 정보, 교원과 관련하여서는 맞춤형 영재교육 담당교원 연수와 영재교육 담당교원 자격을 인증해주는 프로그램, 그리고 학부모와 관련하여서는 영재교육 전문가를 중심으로 영재 학부모들이 네트워크를 형성할 수 있는 지원 프로그램을 제안하였다.