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The Simultaneous Isomerization and Hydrogenation of Glucose in Alkali Solutions
Author(s) -
Pijnenburg H. C. M.,
Kuster B. F. M.,
van der Baan H. S.
Publication year - 1978
Publication title -
starch ‐ stärke
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.62
H-Index - 82
eISSN - 1521-379X
pISSN - 0038-9056
DOI - 10.1002/star.19780300606
Subject(s) - isomerization , arrhenius equation , arrhenius plot , yield (engineering) , chemistry , kinetics , catalysis , reaction rate constant , alkali metal , activation energy , mannitol , thermodynamics , photochemistry , organic chemistry , physics , quantum mechanics
The kinetics of the simultaneous isomerization and hydrogenation of glucose are studied, and the experimental results are described with a simplified reaction model. By simulating the course of the reactions with a computer the rate constants were determined, and the energies of activation were calculated. From an Arrhenius plot the apparent isomerization activation energies were deduced. Under the experimental conditions a yield of 27% mannitol was obtained starting from glucose. Higher yields can be obtained at low temperatures and low catalyst concentrations.