immobilized cell hollow fiber membrane for fermentation of high sugar concentration

... of Glucose with Inhibitors by Immobilized Cells 78 4.3 Conclusions 84 CHAPTER IMMOBILIZED- CELL HOLLOW FIBER MEMBRANE FOR FERMENTATION OF HIGH SUGAR CONCENTRATION 86 5.1 Introduction ... properties of hollow fiber membrane for the purpose of microbial immobilization Firstly, hollow fiber immobilized cells, or immobilized cells in general, have numerous advantages compared to free cell ... develop an immobilized- cell hollow fiber membrane bioreactor to alleviate inhibitors in lignocellulosic hydrolysate To investigate the performance of immobilized- cell hollow fiber membrane bioreactor...

Ngày tải lên: 09/09/2015, 11:09

... HFCLM Hollow fiber contained liquid membrane HFMB Hollow fiber membrane bioreactor HFRLM Hollow fiber renewal liquid membrane HFSLM Hollow fiber supported liquid membrane HFSLMB Hollow fiber ... conducted for more than 400 hours to evaluate long term stability of the HFSLMB The focus of the third part of the thesis was the incorporation of the organic phase into the hollow fiber membranes for ... biodegradation performance was brought about by limiting the presence of the organic solvent to a liquid membrane supported on the hollow fiber membranes The resulting hollow fiber supported liquid membrane...

Ngày tải lên: 30/09/2015, 06:22

... (a) temporal profiles of P putida concentration and percentage of remaining glucose; (b) temporal concentration profiles of C vulgaris; (c) temporal profiles of total microalgal cell mass ... 43 3.2 Membrane Contactor and Fiber Bundle Fabrication 43 3.2.1 Gas exchange hollow fiber membrane 43 3.2.2 Hollow fiber membrane contactor 44 3.2.3 Fiber bundle ... exchange, the use of hollow fiber membranes also offers several advantages over mechanical aeration, such as minimizing the stripping of organic compounds or the formation of foaming, higher aeration...

Ngày tải lên: 09/09/2015, 11:31

... design of dual-layer hollow fiber DCMD 219 9.1.2 Design of lotus-root-like multi-bore hollow fiber membrane for DCMD 220 9.1.3 Highly asymmetric multi-bore hollow fiber membrane for VMD ... measurements for dual-layer hollow fiber D1 68 Figure 4.5 DCMD Permeation fluxes obtained for PVDF hollow fibers 70 Figure 4.6 Temperature profile for PVDF hollow fiber D1: Tf ... development of suitable hollow fiber membranes for MD process has gained great interest in recent year In this thesis, the micro-morphology and macro-geometry of the hollow fiber membranes are...

Ngày tải lên: 10/09/2015, 09:08

... nanofiltration system 23 Figure 2.3 Morphology of Torlon® PAI NF hollow fiber membranes 25 Figure 2.4 Effects of take-up speed on the membrane structure of Torlon® PAI NF hollow- fiber membranes ... development of a positively charged NF hollow fiber membrane for removal of ciprofloxacin with high rejection and low fouling tendency The effect of PEI modification on the mechanisms of ciprofloxacin ... the lumen side of hollow fibers A high flow rate of 1.6 L/min was applied so that the effect of concentration polarization was minimized (Re > 4000) Before testing, the hollow fiber membranes were...

Ngày tải lên: 12/09/2015, 11:29

... The high demands on high performance membranes for energy, water and life science usages provide the impetus for membrane scientists to search for a comprehensive understanding of membrane formation ... evaporation of low boiling solvents is the key factor for the formation of defect-free gas separation hollow fiber membranes [17, 21] 1.1.3 The effects of air-gap on hollow fiber formation Air-gap ... 3.8 Set-up for pure gas permeation test for hollow fiber modules………………….68 Fig 3.9 Set-up for binary mixed gas permeation test for hollow fiber modules……… 69 Fig 4.1 Effects of polymer concentration...

Ngày tải lên: 14/09/2015, 08:46

... weight of wet hollow fiber membrane before drying Wd Weight of dried hollow fiber membranes ρw The density of water ρ CS The density of the chitosan A Adsorption density or capacity of the hollow fiber ... sheet membrane, spiral wound membrane and hollow fiber membranes, hollow fiber membranes possess some unique advantages Firstly, hollow fibers can be packed at high density and thus provide high ... Figure 6.6 WF of the prepared blend hollow fiber membranes Figure 6.7 Effect of pH on copper ion adsorption on blend hollow fibers (q e is in terms of per gram of dry CS/CA blend hollow fiber pieces,...

Ngày tải lên: 14/09/2015, 08:49

... adsorption amounts of BSA on Pure CA hollow fiber membranes and CS/CA blend hollow fiber membranes 0.5-26.5-OH and 1-26-OH 78 Table 3.9 Reuse of CS/CA blend hollow fiber membranes 1-26-OH for BSA adsorption ... of CS and Pure CA hollow fiber membrane and CS/CA blend hollow fiber membranes 0.5-26.5-OH and 1-26-OH 66 Table 3.3 Pure water fluxes and water contact angles of CS and Pure CA hollow fiber membranes ... spectra of CS and Pure CA hollow fiber membranes and CS/CA blend hollow fiber membranes 0.5-26.5-OH and 1-26-OH 64 Figure 3.4 XRD diffractograms of CS and Pure CA hollow fiber membranes...

Ngày tải lên: 14/09/2015, 11:42

... PBI/POSS-PAN/PVP hollow fiber membranes Fig 3.13 46 Effects of PVP concentration on the NF performance of dual-layer hollow fiber membranes Fig.3.14 Effects of APS concentration on FO performance of hollow fibers ... dual-layer hollow fibers 29 3.1.3 Effects of POSS on the morphology of the hollow fibers 32 3.1.4 Effects of POSS on permeability and selectivity of hollow fibers in NF processes 34 3.1.5 Application of ... PBI/POSS-PAN/PVP hollow fiber membrane This work may provide useful insights for the development of outer selective FO and PRO hollow fiber membranes for osmotic power generation as well as for nanofiltration...

Ngày tải lên: 04/10/2015, 17:06

... asymmetric membranes, however the research is lacking in the area of hollow fiber membranes especially as pervaporation dehydration membranes The development of novel hollow fiber pervaporation membranes ... dense / asymmetric membranes to hollow fiber membranes It comprises the understanding of pervaporation transport process, the development of novel hollow fiber pervaporation membranes based on ... pervaporation performance of recently developed polyimide membranes for pervaporation dehydration of alcohols Although investigation of inherent membrane properties through dense membranes is essential,...

Ngày tải lên: 16/10/2015, 15:38

... transport of cholesterol to the inner mitochondrial membrane [11] In contrast, the factors and processes responsible for the intracellular supply of cholesterol to the outer mitochondrial membrane ... hormoneproducing tissues For example, the corpus luteum and adrenal cortex contain higher concentrations of Adxp and Adrp than does the placenta ([14,15]) In the latter case, the concentration of Adrp limits ... coding for the mature Adrp (preceded by a methionine codon) by sequences coding for the mature form of cytochrome CYP11A1 (preceded by a methionine codon) pV13SCC expresses the mature form of CYP11A1...

Ngày tải lên: 08/03/2014, 08:20

... Preparation of membrane solution and its rheological characteristics 81 3.3.2 Effect of shear rate on the performance of hollow fiber membranes 84 v 3.3.3 Effect of take-up speed on the performance of hollow ... fabrication of hollow fiber membrane modules with high packing density Single-layer Fibers Dual-layer Fibers Procedure for Lab-scale Hollow Fiber Module with High Packing Density Figure 1-9 The scope of ... outer morphologies of hollow fiber membranes spun from batch (A, 806 s-1; B, 3225 s-1) Figure 3-8 89 The influence of take-up speed on the performance of hollow fiber membranes (membrane solution...

Ngày tải lên: 16/09/2015, 17:11

... diameter of the hollow fiber (m) Effective diffusivity of phenol through EIHFM pores (m²/s) Outer diameter of the hollow fiber (m) Theoretical value of diffusivity of phenol through a gas filled membrane ... hurdles of phase separation The design of hollow fiber membrane contactors is simple, compact and occupies minimal space Due to the cylindrical form of hollow fibers, they provide the highest ... objectives of this investigation are as follows: 1) Modification of immobilization method and control of parameters to obtain uniform distribution of TOPO within the thickness of hollow fiber membranes...

Ngày tải lên: 30/09/2015, 10:12

... less than 10% was observed for 3D4/31 cells infected with the same virus concentration.  PK15‐ C1  was  therefore  chosen  as  the  cell line  for development  of the  screening  platform.    A  large  batch of cells were frozen and used in the study until passage number 20 to ensure uniformity of ... (GraphPad  Software,  San  Diego  California  USA,  www.graphpad.com).  One‐way  Analysis  of Variance (ANOVA) with Bonferroni’s post‐test was performed for data obtained for Cell ELISA.  Cell Based Screening Assay for Inhibitors of Porcine Circovirus Type 2 (PCV2) Replication  ... 2.4.2 Evaluating Drug Cytotoxicity   Cells were seeded onto 96‐well plates at a density of 6000 cells per well and incubated  overnight at 37o C, 5% CO2 in fresh medium. Cells were treated with various concentrations of Cell Based Screening Assay for Inhibitors of Porcine Circovirus Type 2 (PCV2) Replication ...

Ngày tải lên: 03/10/2015, 11:36

... PCV2 replication. Screening assays in drug discovery are generally divided  into cell based and cell free  formats.  In  this  study,  a  whole cell approach  was  chosen  for development  primarily  because  of availability  of materials;  cell lines  and  ... higher  infection  rates  for all  seeding  densities,    these  were  less  than  50%  and  cells  seeded  at  higher  density  formed stacks of cells with multiple layers. Infection with higher MOI (> 10), alternatively, did  ... PK15‐C1  cells,  with  the  hope  of obtaining  higher infection rates1.    In  summary,  the  goal  of developing  a  cell based  method  for primary  screening  of potential  inhibitors of ...

Ngày tải lên: 13/10/2015, 16:41

... where the concentrations of enzymes and binding sites are often of the same order of magnitude In all of these cases, the accuracy of MichaelisMenten kinetics is unsatisfactory as a result of small ... demonstrate the validity of this last statement, we compared the performance of a simple integrator for the ZDP1-reduced PTS system against that of a state -of- theart integrator for the full PTS system ... the remaining eight concentrations off the y-axes For example, a concentration of 25 lm for EIIAặP yields a concentration of approximately 40 lm for HPrặP As we remarked earlier, an important assumption...

Ngày tải lên: 18/02/2014, 06:20

... detect parses of high quality from the set of parsed sentences To explore the quality of the selected set in terms of filter f-score, we recall that the quality of a selected set of parses increases ... SEPA outperforms CB and random for all val- ues of the filter f-score parameter k, and outperforms the MR baseline where the value of k is 95 or more Although for small k values MR gets a higher f-score ... reported that the quality of a selected T-set of parses increases as the number of models N increases and sample size S decreases We therefore show the results for relatively high N (20) and relatively...

Ngày tải lên: 20/02/2014, 12:20

... future THE ECONOMIC IMPACTS FOR IRELAND OF HIGH OIL AND GAS PRICES 01 Foreword Foreword O il and gas prices have been the subject of considerable interest in the wake of a particularly volatile ... effect of the oil price shock on the levels of GDP for the US, UK and Euro Area are shown in Figure The THE ECONOMIC IMPACTS FOR IRELAND OF HIGH OIL AND GAS PRICES 09 Economic and Social Impacts of ... ECONOMIC IMPACTS FOR IRELAND OF HIGH OIL AND GAS PRICES  Pathways to risk mitigation and a low carbon future For each of the Focus Areas presented, we offer a qualitative examination of each against...

Ngày tải lên: 08/03/2014, 06:20