The effects of chitosan, sodium lactate and sodium diacetate on the shelf life of hot smoked and vacuum packed rainbow trout fillets

Abstract

© 2017, Chartered Inst. of Building Services Engineers. All rights reserved. This study aims to determine the shelf life of hot smoked and vacuum packed rainbow trout fillets after the application of chitosan, sodium lactate and sodium diacetate. In the study, control group, and rainbow trout fillet sample groups (average weight 100-120 g) each processed with 2% chitosan, 2% sodium lactate and 0.2% sodium diacetate. Each group containing 20 samples, were examined in plate count agar for total mesophilic and psychrophilic microorganisms. Total volatile basic nitrogen (TVB-N) and pH values were also determined. As a result, the shelf life of trout fillets was extended by the use of consumable additives used in the process, particularly chitosan.