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Encapsulated catalase from Serratia genus for H2O2 decomposition in food applications Cover

Encapsulated catalase from Serratia genus for H2O2 decomposition in food applications

Open Access
|Jan 2019

Abstract

The recombinant catalase isolated from a psychrotolerant microorganism belonging to Serratia genus exhibits a high activity in a wide range of pH. Due to a great catalytic potential in operational conditions, it can be used in various industrial applications whereby it acts as a hydrogen peroxide scavenger. To reduce the cost of biocatalyst the enzyme encapsulation into a hydrogel structure was proposed. The obtained results showed a high activity of encapsulated catalase in acidic conditions (pH in range 4.4 - 6.6) and at low temperatures (6-15°C). Moreover, immobilized catalase exhibited a high stability in natural media, especially in milk. Its activity during peroxide decomposition in milk, the possibility of re-using, as well as the fixed bed reactor performance confirmed wide application possibilities. High values of enzyme and substrate concentrations led to the beads burst due to rapid oxygen diffusion from the capsules, thus they are limited.

Language: English
Page range: 39 - 43
Published on: Jan 11, 2019
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2019 Katarzyna Czyzewska, Anna Trusek, published by West Pomeranian University of Technology, Szczecin
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.