The influence of salts and temperature on enzymatic activity of microbial transglutaminase

authored by
Carolin Kütemeyer, M. Froeck, H. D. Werlein, B. M. Watkinson
Abstract

Microbial transglutaminase is used world-wide to improve the texture and to modify the properties of prepared foods in general. It was of interest to investigate the influence of different salts (KCl, NaCl, CaCl2, MgCl2) and salt concentrations (0%, 5%, 10%, 15%, 20%) on the enzymatic activity and thermal stability of microbial transglutaminase. The food enzyme preparation Activa WM (Ajinomoto Europe Sales. Hamburg) was examined using the hydroxamate test. Compared to the microbial transglutaminase solution in water, the addition of NaCl and KCl (monovalent ions) increased the enzymatic activity and thermal stability. By contrast, bivalent ions either had only a slight influence (MgCl2) or decreased the enzymatic activity and thermal stability (CaCl2).

Organisation(s)
Institute of Food Science and Human Nutrition
Type
Article
Journal
FOOD CONTROL
Volume
16
Pages
735-737
No. of pages
3
ISSN
0956-7135
Publication date
10.2005
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Biotechnology, Food Science
Electronic version(s)
https://doi.org/10.1016/j.foodcont.2004.06.012 (Access: Closed)