Nucleotide degradation, biogenic amine level and microbial contamination as quality indicators of cold-stored rainbow trout (Oncorhynchus mykiss) gravad

•Vacuum packaging and 7 ± 1 °C storage maintained the quality of gravad for 35 days.•Coliform bacteria disappeared gradually in gravad during the storage period.•Biogenic amines do not pose a threat in rainbow trout gravad.•G value is more than K, Ki and H suitable for determination of gravad quality.