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  • 1
    Electronic Resource
    Electronic Resource
    Screening of mannanases in actinomycetes and their potential application in the biobleaching of pine kraft pulps (1999)
    Springer
    Applied microbiology and biotechnology 52 (1999), S. 240-245 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Fifty actinomycete strains were screened for the production of mannanase activity during growth in both liquid and solid media. Streptomyces scabies CECT 3340 and Streptomyces ipomoea CECT 3341 were selected for their ability to produce high levels of mannanase (294.3 U/l and 242.9 U/l, respectively) during growth in liquid culture. β-Mannosidase (15.3 U/l) and α-galactosidase (7.7 U/l) activities were also detected in culture filtrate from S. scabies CECT 3340. Highest levels of mannanase activity for S. scabies CECT 3340 were achieved in media containing locust bean gum and asparagine (4.8 U mg−1 protein) whilst in S. ipomoea CECT 3341 greatest activity was detected in media containing locust bean gum and yeast extract (13.2 U mg−1 protein). No carboxymethylcellulase activity was detected. In biobleaching experiments, enzyme treatment, carried out with mannanase activity produced by S. ipomoea CECT 3341, followed by alkaline extraction of pine kraft pulp resulted in the release of colour (A 465, 0.69) and chromophoric material from the pulp (A 237, 12.9; A 254, 6.9 and A 280, 6.7). The ability of this enzyme complex to improve the bleaching of pine kraft pulps was also shown by a pulp brightness increase (2.4 units ISO) and a reduction in kappa number (from 21.4 units to 20.1 units) with the absence of variations on the viscosity values.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002530051515
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  • 2
    Electronic Resource
    Electronic Resource
    Plasma protein and red cell enzyme groups in Galicia (North West Spain) (1987)
    Springer
    International journal of legal medicine 98 (1987), S. 133-140 
    Details
    ISSN: 1437-1596
    Keywords: Blood groups, GALT-EsD-PLG-Hp ; GALT-EsD-PLG-Hp gene frequencies, Galicia (Spain) ; Blutgruppen, GALT-EsD-PLG-Hp ; GALT-EsD-PLG-Hp Genfrequenzen, Galizien (Spanien)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Description / Table of Contents: Zusammenfassung Die Phänotypen der GALT, EsD und PLG wurden durch PAGIF in einer Stichprobe aus Galizien bestimmt. Hp wurden durch konventionelle Elektrophorese bestimmt. Folgende Genfrequenzen wurden ermittelt: für GALT: GALTN: 0,930; GALTD1: 0,044; GALTD2: 0,025; für EsD: EsD1: 0,874; EsD2: 0,104; EsD3: 0,021; für PLG: PLG1: 0,800; PLG2: 0,199; für Hp: Hp1: 0,426; Hp2: 0,573. Die Ergebnisse der Bevölkerungsdaten aller elektrophoretischen Charakteristika (Markers), die bisher innerhalb der Galizischen Bevölkerung ermittelt wurden, wurden ebenfalls berücksichtigt.
    Notes: Summary Galactose-1-phosphate uridyl transferase (GALT), esterase D (EsD), and plasminogen (PLG) phenotypes were determined by isoelectric focusing in thin-layer polyacrylamide gels (PAGIF) in a random sample from Galicia. Haptoglobins (Hp) were determined by conventional electrophoresis. The following gene frequencies were observed: for GALT: GALTN: 0.930; GALTD1: 0.044; GALTD2: 0.025; for EsD: EsD1: 0.874; EsD2: 0.104; EsD3: 0.021; for PLG: PLG1: 0.800; PLG2: 0.199; for Hp: Hp1: 0.426; Hp2: 0.573. Population data results of all electrophoretic markers typed until now in Galician population are also included.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00200471
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    Paper (German National Licenses)
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