Original scientific paper

https://doi.org/10.17113/ftb.57.02.19.6032

The Effect of Sous-Vide Cooking Parameters, Chilled Storage and Antioxidants on Quality Characteristics of Atlantic Mackerel (Scomber scombrus) in Relation to Structural Changes in Proteins

Janna Cropotova orcid.org/0000-0002-4938-2674 ; Department of Biotechnology and Food Science, Norwegian University of Science and Technology, Sem Sælandsvei 6-8, 7491 Trondheim, Norway
Revilija Mozuraityte ; SINTEF Ocean, Brattorkaia 17C, 7010 Trondheim, Norway
Inger Beate Standal ; SINTEF Ocean, Brattorkaia 17C, 7010 Trondheim, Norway
Kari Cecilie Aftret ; Department of Biotechnology and Food Science, Norwegian University of Science and Technology, Sem Sælandsvei 6-8, 7491 Trondheim, Norway
Turid Rustad orcid.org/0000-0002-8972-6347 ; Department of Biotechnology and Food Science, Norwegian University of Science and Technology, Sem Sælandsvei 6-8, 7491 Trondheim, Norway

Abstract

The aim of the present study is to assess the influence of different sous-vide time-temperature regimes and use of two types of commercial antioxidants (rosemary extract and rosemary extract with ascorbyl palmitate) on quality parameters of Atlantic mackerel (Scomber scombrus) during chilled storage. The mackerel fillets were treated with the antioxidants, exposed to sous-vide cooking at 70 and 80 °C for 10 and 20 min, and further stored for 1, 3, 9 and 15 days at (0±1) °C. Changes in dry matter and ash, cook loss, protein oxidation and solubility, as well as texture parameters in sous-vide cooked mackerel during storage, were assessed by application of multiple regression analysis. It was revealed that duration of chilled storage had the highest contribution to the decrease in cook loss due to a possible reabsorption of water released during cooking by unfolded proteins. At the same time, this parameter increased protein carbonylation in mackerel samples, resulting in a decreased protein solubility due to aggregation of proteins and subsequent toughening of the fish muscle. However, the use of antioxidants has shown to be highly efficient in decreasing the protein carbonylation in the analysed fish samples.

Keywords

Atlantic mackerel; sous-vide cooking; antioxidants; chilled storage; protein carbonylation

Hrčak ID:

223873

URI

https://hrcak.srce.hr/223873

Publication date:

30.6.2019.

Article data in other languages: croatian

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