Journal
JOURNAL OF AQUATIC FOOD PRODUCT TECHNOLOGY
Volume 18, Issue 1-2, Pages 3-17Publisher
HAWORTH PRESS INC
DOI: 10.1080/10498850802580924
Keywords
fish; rainbow trout; sodium treatment; dipping; shelf life; storage
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The influence of dipping rainbow trout fillets for 10 min in 2.5% solutions containing sodium acetate (NaA), sodium lactate (NaL), and sodium citrate (NaC) on microbiological, chemical, color, textural, and sensory analyses of fish fillets were assessed. According to the results of microbiological analyses, total mesophilic counts for rainbow trout fillets exceeded 7 log cfu/g, which considered the maximum level of acceptability for freshwater and marine fish after 6 days for the control, and 9 days for NaA, NaL, and NaC treatment. The shelf life of the treated trout fillets was extended by 3 days. NaA, NaL, and NaC were efficient in preventing the proliferation of total mesophilic bacteria (TMC), psychrotrophic (PC), and coliform bacteria (CB) counts. The general order of antibacterial activity of different organic salts used was: NaA > NaL > NaC. Organic salts treatment did not affect lipid oxidation and textural qualities. NaA, NaL, and NaC treatment can be an alternative way to improve the shelf life of fish and fish products.
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