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Immobilized Peroxidase: A Potential Bioindicator for Evaluation of Thermal Processes
Author(s) -
WENG ZHIJUN,
HENDRICKX M.,
MAESMANS G.,
TOBBACK P.
Publication year - 1991
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1991.tb05326.x
Subject(s) - bioindicator , peroxidase , dodecane , chemistry , analytical chemistry (journal) , nuclear chemistry , chromatography , environmental chemistry , enzyme , organic chemistry
The heat‐stable fraction of covalently immobilized peroxidase on/in porous glass beads in an environment of dodecane was studied as a bioindicator for evaluation of thermal processes under conditions of pasteurization. The verified bioindicator had a z value of 10.1°C and a Dref (at 70°C) of 22 min. At processing temperatures of 70°C and 80°C, the lethalities (F) bio as read from the bioindicator agreed very well with the target Ft 10.0 values calculated from the time temperature data according to the general method.