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Chemical stability of rainbow trout in icing medium containing pistachio (Pistachia vera) green hull extract during chilled storage

Fatemeh Sadat Nazeri; Nafiseh Soltanizadeh; Sayed Amir Hossein Goli; Sheida Mazaheri. 2018. Chemical stability of rainbow trout in icing medium containing pistachio (Pistachia vera) green hull extract during chilled storage. Journal of  Food Science and Technology. 55(2): 449–456.

In this study, the effect of icing medium containing different concentration of pistachio (Pistacia vera
L. cv. Akbari) green hull extract (PHE) was investigated on the chemical stability of rainbow trout. The fishes were stored for 12 days in flaked ice containing 0, 0.1, 0.2 and 0.3% PHE and the parameters of pH, total volatile base nitrogen (TVB-N), histamine, free fatty acids, peroxide and thiobarbituric acid index (TBA-i) were periodically evaluated. In all experiments, a significant difference was evident between control and fish muscles stored in ice containing PHE. Fish icing with 0.3% PHE could considerably
retard the oxidative and hydrolytic rancidity. In addition, it had significant effect on prevention of pH
increase and production of volatile basic nitrogen during 12 days storage. PHE could diminish histamine accumulation in fish muscle and improve safety of rainbow trout. Consequently, PHE could have potential of application in icing medium for preservation of fish quality especially fatty ones.

Keywords: Rainbow trout; Pistachio green hull extract;  Icing; Chemical stability.

Journal Papers
Month/Season: 
February
Year: 
2018

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