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1992 (1)
1980 (1)
1Author    P. Grunwald, W. G. Unßer, K. P. Pfaff, R. K. Rause, K. LutzRequires cookie*
 Title    Zur Beeinflussung der Aktivität von adsorptiv auf eloxierten Aluminiumblechen immobilisierter Urease durch die Anodisier-Bedingungen The Influence o f Anodizing Conditions on the Activity o f Urease Immobilized to Anodized Sheet A lum inium  
 Abstract    The activity of urease immobilized by adsorption on anodized sheet aluminium strongly depends on the method chosen for preparation of these carriers. If oxalic acid is applied as electrolyte, only the anodizing temperature significantly influences the activity of the prepara­ tions. In case of the well-known GS process, however, the activity is not only affected by the temperature, but also by other conditions of anodizing, for example the current density and the electrolyte concentration. For both methods the correlation between the topography of the carrier surfaces and the activity of enzyme immobilized to the surface is described. 
  Reference    Z. Naturforsch. 35c, 819—823 (1980); eingegangen am 15. Februar/6. Mai 1980 
  Published    1980 
  Keywords    Immobilized Enzymes, Urease, Anodized Sheet Aluminium, Surface Structure, Scanning Elec­ tron Microscopy 
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 TEI-XML for    default:Reihe_C/35/ZNC-1980-35c-0819.pdf 
 Identifier    ZNC-1980-35c-0819 
 Volume    35 
2Author    P.-GG. Ülz, E. M. Üller, T. H. Errm AnRequires cookie*
 Title    Chemical Composition and Surface Structures of Epicuticular Leaf Waxes from Castanea sativa and Aesculus hippocastanum  
 Abstract    Epicuticular leaf waxes of Castanea sativa and Aesculus hippocastanum contain the same lipids in form of homologous series o f hydrocarbons, wax esters, aldehydes, primary alcohols and fatty acids in similar concentrations without any main component dominating. In Ae. hip­ pocastanum wax acetates are present, additionally. Both waxes are found to contain triter-penols and triterpenol esters in remarkable amounts. ß-Amyrin, a-amyrin and lupeol are pres­ ent in both plant waxes, in Ae. hippocastanum wax friedelanol and friedelanone, additionally. The epidermis o f both plants are covered with a thin continuous wax layer without crystal­ loids. But the adaxial leaf surface o f C. sativa shows granular wax sculptures and therefore a different micromorphological ultrastructure for both leaf sides. 
  Reference    Z. Naturforsch. 47c, 661—666 (1992); received March 12/May 20 1992 
  Published    1992 
  Keywords    Castanea sativa, Aesculus hippocastanum, Leaves, Epicuticular Wax Composition, Surface Structures, Scanning Electron Microscopy 
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 DEBUG INFO      
 TEI-XML for    default:Reihe_C/47/ZNC-1992-47c-0661.pdf 
 Identifier    ZNC-1992-47c-0661 
 Volume    47