Oxygen transfer rate
Quasi-continuous parallel online scattered light, fluorescence and dissolved oxygen tension measurement combined with monitoring of the oxygen transfer rate in each well of a shaken microtiter plate
... dissolved oxygen ten- sion (DOT) are not directly measurable via fluorescence, fluorescence dyes sensitive towards protons or molecular oxygen were developed [11, ...infrared oxygen-sensitive ...
15
The metabolic switch can be activated in a recombinant strain of Streptomyces lividans by a low oxygen transfer rate in shake flasks
... Streptomyces lividans is the bacterial system of choice within the genus Streptomyces for heterologous protein and glycoprotein production, even though the most stud- ied species of the genus is S. coelicolor [14]. This ...
12
Oxygen transfer rate during the production of alginate by Azotobacter vinelandii under oxygen-limited and non oxygen-limited conditions
... synthesis rate and the specific growth rate increased at high agitation rate (600-700 rpm) with respect to the cultures of ...agitation rate, a slimy layer or alginate capsule is formed around ...
12
Investigation of poly(γ-glutamic acid) production via online determination of viscosity and oxygen transfer rate in shake flasks
... as oxygen supply, carbon dioxide removal, degree of mixing as well as hydromechanical stress or dispersion of an organic liquid phase are all more or less dependent on the specific power input ...impair ...
16
Evaluation and Optimization of Efficiency and Mixing Time in a Surface Aeration Tank - Volume 6 Number 3 (Jun. 2015) - IJCEA
... and oxygen transfer ...both oxygen transfer rate and power ...rpm, oxygen transfer rate grows rapidly with the rotor speed increase causing SAE ...rpm, ...
5
Polymer-based controlled-release fed-batch microtiter plate – diminishing the gap between early process development and production conditions
... Exception: Oxygen transfer rate (OTR) and pH are measured in ...a Oxygen transfer rate (OTR) b Cell dry weight (CDW, squares) and pH (stars); c Flavin mononucleotide binding ...
15
Systematic evaluation of characteristics of the membrane-based fed-batch shake flask
... the oxygen transfer rate in the RAMOS device, are the initial substrate concentration in the reservoir and the membrane used for the controlled ...
17
Development of a modified Respiration Activity Monitoring System for accurate and highly resolved measurement of respiration activity in shake flask fermentations
... of oxygen transfer rate (OTR), carbon dioxide transfer rate (CTR) and respiratory quotient (RQ) in shake flasks down to 100 ...determining oxygen lim- itations in shake flask ...
12
Effect of oxygen mass transfer rate on the production of 2,3-butanediol from glucose and agro-industrial byproducts by Bacillus licheniformis ATCC9789
... Background: 2,3-Butanediol (BD) is a largely used fossil-based platform chemical. The yield and productivity of bio-based BD fermentative production must be increased and cheaper substrates need to be identified, to make ...
14
Final Technical Report, Elisa Rehak.pdf
... provide oxygen to the waste at Butler ...the oxygen transfer rate because microbes would drive the oxygen concentration at the membrane/water interface to zero, thus maximizing the ...
47
Bubble-free oxygen and carbon dioxide mass transfer in bioreactors using microporous membranes
... transport oxygen from gas to liquid as oxygen is the most important electron acceptor in bioprocesses (Garcia-Ochoa and Gomez, 2009; Garcia-Ochoa et ...the transfer of oxygen is usually the ...
141
Experimental studies on determination of volumetric oxygen transfer coefficient in stirred tank bioreactor using fungal broths isolated from textile effluent
... the transfer criteria established for these ...mass transfer coefficient, Power consumption per unit volume, Impeller tip velocity, mixing ...The oxygen transfer rate is dependent upon ...
5
Design Characteristics of Submersible Aerator
... Propeller-aspirator-pump aerators, vertical pump aerators and diffused-air aeration systems are widely used in aquaculture for aeration of small ponds. Values for standard oxygen transfer rate (SOTR) ...
7
Comprehensive Study on Ceramic Membranes for Low Cost Microbial Fuel Cells
... mass transfer and the physicochemical changes of the feed- stock on the development of microbial ...higher rate of protons that pass through a particular mem- brane type encourages electro-active ...
9
Do seasonal changes in metabolic rate facilitate changes in diving behaviour?
... study, we do not know how, or even whether, oxygen stores varied. However, the proportion of dives in excess of the cADL did not vary between summer and mid-winter (Fig.·7), suggesting that whether or not the ...
13
Effects of hypoxia acclimation on morpho physiological traits over three generations of Daphnia magna
... different oxygen tensions ...The oxygen tension was checked by an oxygen analyzer (S3A-II Ametek; Thermox instruments division, Pittsburgh, ...USA). Oxygen saturations were calculated from the ...
11
Heart rate and rate of oxygen consumption of exercising macaroni penguins
... heart rate data, the HRDL also emitted a radio signal when an ECG signal was detected, and this was picked up using a receiver (877R, International) tuned to 115 ...heart rate as a back-up to the ...
13
Model based study of autothermal thermophilic aerobic digestion (ATAD) processes : a thesis presented in partial fulfilment of the requirements for the degree of Master of Technology in Engineering and Automation of Massey University
... Model Based Study of AT AD Processes A control strategy that is slightly cheaper less sensors required to implement but less effective than the aeration rate - oxygen transfer efficiency[r] ...
127
Effects of oxygen enriched tent by a new oxygen concentration machine on blood oxygen saturation and heart rate in tibet
... provide oxygen-enriched gas, the outlet could be connected with a circular pipe and the output of the machine was 35 L/min of 32% ...12 oxygen enrichment membranes con- nected with a pump by tubes, the pump ...
6
THE PULMONARY RETENTION OF AEROSOLS: A QUANTITATIVE METHOD OF MEASUREMENT USING SODIUM PARA AMINO HIPPURATE
... Observations Time of breathing and sampling Time of aerosol production oxygen flow Rate of aerosol production oxygen flow Rate of sampling Correction for position of spirometer at end of[r] ...
6