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  • 1990-1994  (2)
  • 1970-1974  (2)
  • Biochemistry and Biotechnology  (2)
  • 62G07  (1)
  • Chlorella  (1)
  • immobilization  (1)
Source
Material
Years
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Rates of convergence and optimal spectral bandwidth for long range dependence (1994)
    Springer
    Probability theory and related fields 99 (1994), S. 443-473 
    Details
    ISSN: 1432-2064
    Keywords: 60G18 ; 62G07 ; 62M15
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Summary For a realization of lengthn from a covariance stationary discrete time process with spectral density which behaves like λ1−2H as λ→0+ for 1/2〈H〈1 (apart from a slowly varying factor which may be of unknown form), we consider a discrete average of the periodogram across the frequencies 2πj/n,j=1,..., m, wherem→∞ andm/n→0 asn→∞. We study the rate of convergence of an analogue of the mean squared error of smooth spectral density estimates, and deduce an optimal choice ofm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01199901
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Mercury removal by immobilized algae in batch culture systems (1990)
    Springer
    Journal of applied phycology 2 (1990), S. 223-230 
    Details
    ISSN: 1573-5176
    Keywords: Chlorella ; immobilization ; mercury ; accumulation ; volatilization ; alginate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The accumulation and volatilization of mercury by non-immobilized and immobilizedChlorella emersonii have been studied in batch culture systems. Reduction in the mercury concentration in the growth medium by non-immobilized cells was highly dependent on inoculum density, whilst reduction in mercury concentration by immobilized cells was rapid at all inoculum densities. Mercury accumulation by immobilized cell biomass was significantly greater than by non-immobilized cells with 106 and 105 cells bead−1 or ml−1. Volatilization of mercury by non-immobilized cell systems was greatest at higher inoculum densities, whereas more mercury was volatilized from immobilized cell systems at lower inoculum densities, and was greatest with unstocked alginate beads. Thus, in immobilized systems, mercury removal from solution is complex and involves mercury accumulation by the cells and volatilization by the matrix and cells. Further studies of mercury accumulation and volatilization by unstocked immobilization matrices revealed that agarose volatilized much less mercury than alginate or agar. The precise mechanism of mercury volatilization by alginate remains unclear, though it is thought to be a chemical effect.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02179779
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Pilot scale affinity chromatography: Purification of β-galactosidase (1974)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 16 (1974), S. 1103-1112 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: β-Galactosidase has been purified from an ammonium sulfate precipitate of E. coli strain ML308 by biospecific adsorption on a column of agarose gel substituted with p-aminophenyl-β-D-thiogalactopyranoside. The system described using a 1.8 liter column has a useful processing capacity of 3.8 × 106 units of β-galactosidase per 2 hr cycle. This corresponds to about 5 g of pure enzyme. An electromechanical timing device operates a set of six solenoid valves and carries out a preset program consisting of sample application, washing, and elation operations.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260160810
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    The properties of magnetic supports in relation to immobilized enzyme reactors (1973)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 15 (1973), S. 603-606 
    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: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260150318
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    Paper (German National Licenses)
    Fulltext
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