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'water' in keywords Facet   Publication Year 1979  [X]
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1Author    B. Rigitte, S. ChobertRequires cookie*
 Title    A Near-Infrared Spectroscopic Investigation of Water in Solutions with Proline, Glycinebetaine, Glycerol and Albumin  
 Abstract    The (v2 + v3) com bination band o f water has been investigated in aqueous solutions o f proline, glycinebetaine and glycerol and in a three component solution with each o f these substances and albumin. It is shown that the hydrogen bonding strength between the water protons and proline or betaine is higher than between water and glycerol. Betaine exhibits a higher affinity versus the oxygen o f water than does proline. The water binding capacity o f pure proline solutions is unchanged in a three-com ponent solu­ tion with albumin. Proline neither enhances nor reduces the solubility o f this highly soluble pro­ tein. In contrast, in a three-com ponent solution with betaine, the solubility o f both betaine and al­ bum in is reduced. It is assumed that these solute particles com pete for the sam e binding position on the water m olecule. Concentrated glycerol solutions with very low water concentrations dissolve a considerable am ount o f albumin, which points to the fact that the protein must be partly dis­ solved in glycerol itself. 
  Reference    Z. Naturforsch. 34c, 699—703 (1979); received February 2/M ay 29 1979 
  Published    1979 
  Keywords    Water, Protein, Proline, Betaine, Glycerol 
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 TEI-XML for    default:Reihe_C/34/ZNC-1979-34c-0699.pdf 
 Identifier    ZNC-1979-34c-0699 
 Volume    34 
2Author    K. T. RindierRequires cookie*
 Title    Die Temperaturabhängigkeit biologischer Prozesse Temperature-Dependence of Biological Process  
 Abstract    Temperature dependence of biological processes is described by the modified Arrhenius equa­ tion, in which the constant is replaced by a temperature-variable coefficient. The theoretical foun­ dation for this replacement is given and experimentally verified. 1. Die Tem peraturabhängigkeit der Geschwindig­ keit chemischer Reaktionen wird durch die A rrhe­ niusgleichung beschrieben: v = v0 -e~ ElR T . 
  Reference    Z. Naturforsch. 34c, 474 (1979); eingegangen am 11. April 1978 
  Published    1979 
  Keywords    Arrhenius Equation, Phase-Change, Water, Mitochondria, Metabolizing Cell 
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 TEI-XML for    default:Reihe_C/34/ZNC-1979-34c-0474.pdf 
 Identifier    ZNC-1979-34c-0474 
 Volume    34