Return to search

At-line analysis of high cell density Escherichia coli fermentation using near-infrared spectroscopy (NIRS).

Liu, Haijing. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2010. / Includes bibliographical references (leaves 112-116). / Abstracts in English and Chinese. / Acknowledgements --- p.i / Abstract --- p.iii / 摘要 --- p.v / Table of contents --- p.vi / List of figures --- p.xii / List of tables --- p.xv / List of abbreviations --- p.xvi / Chapter / Chapter 1 --- Introduction / Chapter 1.1 --- Fermentation --- p.1 / Chapter 1.1.1 --- Biopharmaceutical production --- p.1 / Chapter 1.1.2 --- History of fermentation --- p.1 / Chapter 1.1.3 --- Fermentation Technology --- p.2 / Chapter 1.1.3.1 --- Fermentation process --- p.2 / Chapter 1.1.3.2 --- Fermenter --- p.4 / Chapter "1,1.3.3" --- Mode of fermentation process --- p.5 / Chapter 1.1.3.4 --- Bacterial growth --- p.6 / Chapter 1.1.4 --- High cell density fermentation for plasmid DNA production --- p.7 / Chapter 1.1.4.1 --- Porcine growth hormone releasing factor (pGRF) --- p.8 / Chapter 1.1.4.2 --- H5N1 avian influenza viruses DNA vaccine --- p.9 / Chapter 1.1.4.3 --- Fed-batch high-cell-density fermentation --- p.9 / Chapter 1.1.5 --- Fermentation process monitoring --- p.11 / Chapter 1.2 --- Near-infrared spectroscopy (NIRS) --- p.12 / Chapter 1.2.1 --- Basic near-infrared spectroscopy --- p.13 / Chapter 1.2.1.1 --- Rationale of near-infrared spectroscopy --- p.13 / Chapter 1.2.1.2 --- NIR spectra acquisition --- p.16 / Chapter 1.2.1.3 --- Interpretation of NIR spectra --- p.18 / Chapter 1.2.2 --- Multivariate calibration --- p.20 / Chapter 1.2.2.1 --- Why multivariate calibration --- p.22 / Chapter 1.2.2.2 --- The problem of collinearity --- p.25 / Chapter 1.2.2.3 --- Spectral range selection --- p.26 / Chapter 1.2.2.4 --- Signal optimization --- p.26 / Chapter 1.2.2.5 --- Spectral pretreatment --- p.27 / Chapter 1.2.2.6 --- Parameter selection --- p.28 / Chapter 1.2.3 --- Applications of NIRS in high cell density E. coli fermentation --- p.31 / Chapter 1.2.4 --- Adaptive calibration strategy --- p.33 / Chapter 1.3 --- Aims of study --- p.34 / Chapter 2 --- Materials and methods / Chapter 2.1 --- High cell density fermentation of plasmid DNA --- p.35 / Chapter 2.1.1 --- Fermentation system --- p.35 / Chapter 2.1.2 --- pGRF fermentation --- p.38 / Chapter 2.1.2.1 --- Prepare seed flask --- p.38 / Chapter 2.1.2.2 --- Reagents for bacterial culture by fermenter --- p.38 / Chapter 2.1.2.2.1 --- LB based complex fermentation medium --- p.38 / Chapter 2.1.2.2.2 --- Batch fermentation medium --- p.39 / Chapter 2.1.2.2.3 --- Feeding medium-1 --- p.41 / Chapter 2.1.2.2.4 --- Base feed --- p.41 / Chapter 2.1.2.3 --- Fermentation methods --- p.42 / Chapter 2.1.2.3.1 --- Fermenter set-up --- p.42 / Chapter 2.1.2.3.2 --- Inoculate seed culture into the fermenter --- p.43 / Chapter 2.1.2.3.3 --- Transfer the feeding medium --- p.44 / Chapter 2.1.2.3.4 --- Heat induction --- p.44 / Chapter 2.1.2.3.5 --- Fermentation harvest --- p.44 / Chapter 2.1.2.4 --- Scale-up fermentation and large scale production 45 / Chapter 2.1.3 --- H5N1 fermentation --- p.45 / Chapter 2.1.4 --- Reference analytical testing --- p.45 / Chapter 2.1.4.1 --- Optical density --- p.45 / Chapter 2.1.4.2 --- Cell dry weight --- p.45 / Chapter 2.1.4.3 --- Specific plasmid DNA yield --- p.46 / Chapter 2.1.4.3.1 --- Plasmid DNA isolation --- p.46 / Chapter 2.1.4.3.2 --- Plasmid DNA measurement --- p.46 / Chapter 2.1.4.3.3 --- Plasmid DNA identification --- p.46 / Chapter 2.1.4.4 --- Analysis of glycerol and acetate --- p.46 / Chapter 2.1.4.4.1 --- Standard samples --- p.46 / Chapter 2.1.4.4.2 --- Enzymatic test kits --- p.47 / Chapter 2.1.4.4.3 --- Automatic biochemistry analyzer --- p.47 / Chapter 2.1.5 --- Summary of all fermentation batches --- p.48 / Chapter 2.2 --- Full factorial design and semi-synthetic samples --- p.49 / Chapter 2.2.1 --- Adaptive calibration samples --- p.49 / Chapter 2.2.1.1 --- Matrix 1 calibration samples --- p.49 / Chapter 2.2.1.2 --- Matrix 2 calibration samples --- p.50 / Chapter 2.2.1.3 --- Matrix 3 calibration samples --- p.50 / Chapter 2.2.2 --- Summary of all samples --- p.51 / Chapter 2.3 --- NIR sample presentation and spectral acquisition --- p.52 / Chapter 2.3.1 --- NIR spectrophotometers --- p.52 / Chapter 2.3.2 --- Cuvettes for transmittance spectral acquisition --- p.53 / Chapter 2.3.3 --- Bottles for reflectance spectral acquisition --- p.54 / Chapter 2.3.4 --- Spectral acquisition --- p.55 / Chapter 2.3.4.1 --- Transmittance --- p.55 / Chapter 2.3.4.2 --- Reflectance --- p.55 / Chapter 2.4 --- Multivariate calibration and validation --- p.56 / Chapter 2.4.1 --- Spectral preprocessing --- p.56 / Chapter 2.4.2 --- Multivariate calibration --- p.57 / Chapter 2.4.3 --- Model validation --- p.57 / Chapter 3 --- Results and discussion / Chapter 3.1 --- Sample presentation and NIR spectrum --- p.59 / Chapter 3.1.1 --- Transmission measurement --- p.60 / Chapter 3.1.2 --- Reflectance measurement --- p.63 / Chapter 3.1.3 --- Spectral responses and pre-treatment method --- p.64 / Chapter 3.1.4 --- Design of experiments for calibration sample preparation --- p.67 / Chapter 3.1.5 --- Summary --- p.68 / Chapter 3.2 --- Adaptive calibration --- p.69 / Chapter 3.2.1 --- Selection of Multivariate calibration model --- p.70 / Chapter 3.2.1.1 --- Matrix 1 calibration models --- p.70 / Chapter 3.2.1.2 --- Matrix 2 calibration models --- p.74 / Chapter 3.2.1.3 --- Matrix 3 calibration models --- p.76 / Chapter 3.2.1.4 --- Summary --- p.78 / Chapter 3.2.2 --- Model validation --- p.79 / Chapter 3.2.2.1 --- Performance of Reference analytical methods --- p.79 / Chapter 3.2.2.1.1 --- Enzymatic test kits --- p.79 / Chapter 3.2.2.1.2 --- Automatic biochemistry anaylyzer (Bioprofile) --- p.81 / Chapter 3.2.2.1.3 --- Summary --- p.83 / Chapter 3.2.2.2 --- Model validation using external test samples --- p.83 / Chapter 3.2.2.2.1 --- Matrix 1 models --- p.83 / Chapter 3.2.2.2.2 --- Matrix 2 models --- p.87 / Chapter 3.2.2.2.3 --- Matrix 3 models --- p.89 / Chapter 3.2.2.2.4 --- Overall NIR measurement errors --- p.90 / Chapter 3.2.2.2.5 --- Summary --- p.91 / Chapter 3.3 --- Use of calibrated NIRS in at-line monitoring and control of fermentation --- p.93 / Chapter 3.3.1 --- Analysis of small-scale fermentation --- p.94 / Chapter 3.3.1.1 --- pGRF plasmid DNA production --- p.94 / Chapter 3.3.1.2 --- H5N1 plasmid DNA production --- p.95 / Chapter 3.3.1.3 --- Summary --- p.97 / Chapter 3.3.2 --- Analysis of large scale fermentation --- p.97 / Chapter 3.3.2.1 --- 30 L clinical production of H5N1 plasmid DNA --- p.97 / Chapter 3.3.2.2 --- 80 L scale-up production of H5N1 plasmid DNA --- p.99 / Chapter 3.3.2.3 --- Summary --- p.100 / Chapter 3.3.3 --- Effective control of fermentation production using at-line NIR analysis --- p.101 / Chapter 3.3.3.1 --- At-line monitoring of Batch 11 --- p.101 / Chapter 3.3.3.2 --- At-line monitoring of Batch 12 X --- p.102 / Chapter 3.3.3.3 --- Summary --- p.104 / Chapter 3.4 --- General discussion and conclusion --- p.105 / Chapter 3.5 --- Future prospects --- p.108 / References --- p.112 / Appendix 1 --- p.117 / Appendix 2 --- p.118 / Appendix 3 --- p.123 / Appendix 4 --- p.131 / Appendix 5 --- p.134

Identiferoai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_327213
Date January 2010
ContributorsLiu, Haijing., Chinese University of Hong Kong Graduate School. Division of Life Sciences.
Source SetsThe Chinese University of Hong Kong
LanguageEnglish, Chinese
Detected LanguageEnglish
TypeText, bibliography
Formatprint, xvii 134 leaves : ill. (chiefly col.) ; 30 cm.
RightsUse of this resource is governed by the terms and conditions of the Creative Commons “Attribution-NonCommercial-NoDerivatives 4.0 International” License (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Page generated in 0.0021 seconds