Invertase‐catalyzed reactions in alcoholic solutions | Zendy

Selisko Barbara | Zendy; Ulbrich Renate | Zendy; Schellenberger Alfred | Zendy; Müller Ute | Zendy

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Invertase‐catalyzed reactions in alcoholic solutions

Author(s) -

Selisko Barbara,

Ulbrich Renate,

Schellenberger Alfred,

Müller Ute

Publication year - 1990

Publication title -

biotechnology and bioengineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.136

H-Index - 189

eISSN - 1097-0290

pISSN - 0006-3592

DOI - 10.1002/bit.260351008

Subject(s) - invertase , chemistry , alkyl , hydrolysis , sucrose , fructose , methanol , ethanol , alcohol , propanol , organic chemistry , catalysis , aqueous solution

The formation of alkyl β‐ D ‐fructofuranosides by invertase from sucrose in aqueous solutions of methanol, ethanol, or n ‐propanol is studied for the dependence on alcohol and invertase concentrations as well as on reaction time. The yield of alkyl β‐ D ‐fructosides is shown to be controlled by three competitive reactions: the alcoholysis of sucrose, the hydrolysis of sucrose, and the hydrolysis of alkyl β‐ D ‐fructosides. Both the conversion rate of sucrose and the fraction of alkyl β‐ D ‐fructosides in the product mixture are dependent on the chain length of the alcohols. They decrease in the sequence methanol > ethanol > n ‐propanol. Alkyl β‐ D ‐fructosides are also formed by invertase starting from alcoholic solutions of fructose.

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