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  • Biochemistry and Biotechnology  (46)
  • Analytical Chemistry and Spectroscopy
  • Wiley-Blackwell  (46)
  • 1960-1964  (46)
  • 1962  (46)
Collection
Keywords
Publisher
  • Wiley-Blackwell  (46)
Years
  • 1960-1964  (46)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Editorial (1962)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 4 (1962), S. 1-3 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260040102
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  • 2
    Electronic Resource
    Electronic Resource
    An apparatus for aeration of tissue cells in suspended culture with controlled gas mixtures (1962)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 4 (1962), S. 79-86 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: An apparatus is described for the aeration of a series of tissue cultures at rates which may be varied independently for each vessel. The composition of the aerating gas can be adjusted to any desired percentages of CO2 and O2. While designed particularly for study of the aeration requirements of submerged tissue growth, the equipment is equally adaptable for study of submerged growth of bacterial and other systems. The apparatus has been designed for future scale-up and is adaptable to both the overlay and bubble-through types of aeration. Flow rates necessary for producing mixtures of 5.0% CO2 and 95.0% air or 5.6% CO2, 14.0% O2, and 80.4% nitrogen are given. The described system has been operated satisfactorily and has proved to be an inexpensive and useful research tool.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260040110
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  • 3
    Electronic Resource
    Electronic Resource
    Aeration in tower-type fermentors: Effect of tower diameter and number of aeration disksContribution No. 6866, from the Division of Applied Biology, National Research Council, Ottawa, Canada (1962)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 4 (1962), S. 241-245 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The rate of oxygen absorption by aqueous sodium sulphite solutions in tower-type fermentors up to 6 in. in diameter was related both to tower diameter and to the number of sintered Pyrex disks used for dispersing air entering the towers. Maximal rates of absorption were obtained in towers 2.5 in. in diameter. Under comparable conditions, rates of oxygen transfer in towers containing one aeration disk were approximately 30% higher than those in similar towers containing two or more disks. In towers greater than 6 in. in diameter, the absorption rate was independent of vessel diameter and number of aeration disks when more than one disk was used. Bubble coalescence was the main cause of the difference in the rate of oxygen absorption.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260040214
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  • 4
    Electronic Resource
    Electronic Resource
    “Sleeve” stirrer for submerged cultures (1962)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 4 (1962), S. 299-301 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: An aseptic agitation system for submerged culture has been devised. It consists of a stirring rod which is isolated from the interior of the culture vessel by a sleeve of flexible plastic tubing.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260040305
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  • 5
    Electronic Resource
    Electronic Resource
    Some effects of turbine size on novobiocin fermentations (1962)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 4 (1962), S. 231-240 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Studies were made of oxygen transfer and power in 20-1. novobiocin fermentations with five sizes (23-60% of the tank diameter) of geometrically similar flatblade turbine impellers. The influence of changes in apparent viscosity on oxygen transfer and power was found to be related to impeller diameter. At constant agitator speed the oxygen availability rate (OAR) decreased with increase in apparent viscosity, but the magnitude of the reduction was less with a small impeller than with a large one. At constant power input the small-diameter impeller (23% of tank diameter) gave an OAR about 8 times that of the large one (60% of tank diameter) when tested in viscous beer, whereas with sulfite or yeast all impeller diameters gave the same OAR. Impeller tip velocity correlated with OAR independently of diameter for the five turbine sizes examined. The power required for optimal novobiocin yields increased with increase in turbine diameter, but the yields were independent of diameter at equal OAR.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260040213
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  • 6
    Electronic Resource
    Electronic Resource
    Continuous chemical sterilization of microbiological media with β-propiolactone (1962)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 4 (1962), S. 331-340 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A laboratory bench set-up for the continuous chemical sterilization of microbiological media using β-propiolactone was developed. The apparatus permits the sterilization of up to 4 liters/hr. of liquid media. The parameters of hydrolyzing time and temperature necessary to reduce the β-propiolactone to nontoxic levels were determined using a E. coli-nutrient broth system. The sterilization technique was applied successfully to a variety of media, and its potential usefulness on an industrial scale is discussed.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260040309
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  • 7
    Electronic Resource
    Electronic Resource
    Automatic control of dissolved oxygen levels in fermentations (1962)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 4 (1962), S. 345-356 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Dissolved oxygen levels in fermentation systems are affected by (a) gas flow rate, (b) degree of agitation, and (c) oxygen partial pressure in the gas. Since the first two variables cannot easily be separated, a method for dissolved oxygen control has been devised based on the variation of oxygen partial pressure in the gas. Oxygen and nitrogen are fed to a special mixing valve capable of varying the proportions of the two gases while keeping the total flow rate constant. A dissolved oxygen electrode and control system adjust the valve setting to automatically maintain a preset oxygen level. Oxygen analyzers, monitoring the inlet and outlet gas streams, provide additional information from which oxygen absorption and uptake rates may be determined. The system provides a means for the quantitative and independent study of aeration and agitation effects. In addition, it offers a basis for routine control of oxygen levels in plant fermentation equipment.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260040311
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  • 8
    Electronic Resource
    Electronic Resource
    Masthead (1962)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 4 (1962) 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260040101
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  • 9
    Electronic Resource
    Electronic Resource
    A modified adsorption method for determining percentage of dead yeast cells (1962)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 4 (1962), S. 247-254 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The adsorption of methylene blue from different aqueous solutions by dead yeast cells follows Freundlich's law when the percentage of dead cells varies from 0 to 100. When the Fink and Kühles methylene blue was used, there was observed a linear relation between the percentage of dead cells and the dye concentration at the equilibrium. The experimental errors were measured. A simpler and more precise colorimetric method for determining the percentage of dead yeast cells is deseribed.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260040215
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  • 10
    Electronic Resource
    Electronic Resource
    Biological treatment of pharmaceutical wastes (1962)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 4 (1962), S. 171-180 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260040208
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