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Enzymatic gallic acid esterification
Author(s) -
Weetal Howard H.
Publication year - 1985
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.260270203
Subject(s) - gallic acid , tannase , chemistry , alcohol , enzyme , organic chemistry , chromatography , antioxidant
Gallic acid esters of n ‐propyl and amyl alcohols have been produced by enzymatic synthesis in organic solvents using immobilized tannase. Studies indicate that maximum esterification of gallic acid occurs with amyl alcohol. The enzyme shows broad alcohol specificity. However, the enzyme exhibits absolute specificity for the acid portion of the ester. Studies were carried out on K m , V max , pH, and temperature optima.