Fatty Acid Composition and Oxidative Stability of the Lipid Fraction of Skin-On and Skinless Fillets of Prussian Carp (<i>Carassius gibelio</i>)

The aim of the study was to compare the fatty acid profile and content and the oxidative stability of the lipid fraction of Prussian Carp (<i>Carassius gibelio</i>) fillets with and without skin. Carp specimens were obtained in spring from a fish farm located in the Lublin Voivodeship. T...

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Main Authors: Piotr Skałecki, Agnieszka Kaliniak-Dziura, Piotr Domaradzki, Mariusz Florek, Monika Kępka
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/10/5/778
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author Piotr Skałecki
Agnieszka Kaliniak-Dziura
Piotr Domaradzki
Mariusz Florek
Monika Kępka
author_facet Piotr Skałecki
Agnieszka Kaliniak-Dziura
Piotr Domaradzki
Mariusz Florek
Monika Kępka
author_sort Piotr Skałecki
collection DOAJ
description The aim of the study was to compare the fatty acid profile and content and the oxidative stability of the lipid fraction of Prussian Carp (<i>Carassius gibelio</i>) fillets with and without skin. Carp specimens were obtained in spring from a fish farm located in the Lublin Voivodeship. The research material consisted of skin-on (n = 12) and skinless (n = 12) fillets (hand-filleted). Their chemical composition (water, ash, protein, and fat content), calorific value, and nutritional quality index (NQI) were analysed, as well as their fatty acid content and profile. The oxidative stability of the lipids was assessed on the basis of the peroxide value (PV), thiobarbituric acid reactive substances (TBARS) value, and the content of the conjugated dienes and trienes (CD and CT), while determination of the degree of fat hydrolysis was based on the acid value (AV) and free fatty acids (FFA). The Carp fillet with skin contained significantly (<i>p</i> ≤ 0.01) more fat (by 2.69 pp) and calories (by 92.16 kJ∙100 g<sup>−1</sup>) than the skinless fillet, and over three times as much n-3 polyunsaturated fatty acids (n-3 PUFA), including eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids. In the skin-on fillet, the lipid oxidation and hydrolysis parameters were significantly higher, but did not deviate from the values specified for fresh fish and/or fish fit for consumption.
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spelling doaj.art-ac09a51a0153419e9395257b0d2ba7582023-11-19T23:08:51ZengMDPI AGAnimals2076-26152020-04-0110577810.3390/ani10050778Fatty Acid Composition and Oxidative Stability of the Lipid Fraction of Skin-On and Skinless Fillets of Prussian Carp (<i>Carassius gibelio</i>)Piotr Skałecki0Agnieszka Kaliniak-Dziura1Piotr Domaradzki2Mariusz Florek3Monika Kępka4Institute of Quality Assessment and Processing of Animal Products, Faculty of Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin, PolandInstitute of Quality Assessment and Processing of Animal Products, Faculty of Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin, PolandInstitute of Quality Assessment and Processing of Animal Products, Faculty of Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin, PolandInstitute of Quality Assessment and Processing of Animal Products, Faculty of Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin, PolandInstitute of Quality Assessment and Processing of Animal Products, Faculty of Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin, PolandThe aim of the study was to compare the fatty acid profile and content and the oxidative stability of the lipid fraction of Prussian Carp (<i>Carassius gibelio</i>) fillets with and without skin. Carp specimens were obtained in spring from a fish farm located in the Lublin Voivodeship. The research material consisted of skin-on (n = 12) and skinless (n = 12) fillets (hand-filleted). Their chemical composition (water, ash, protein, and fat content), calorific value, and nutritional quality index (NQI) were analysed, as well as their fatty acid content and profile. The oxidative stability of the lipids was assessed on the basis of the peroxide value (PV), thiobarbituric acid reactive substances (TBARS) value, and the content of the conjugated dienes and trienes (CD and CT), while determination of the degree of fat hydrolysis was based on the acid value (AV) and free fatty acids (FFA). The Carp fillet with skin contained significantly (<i>p</i> ≤ 0.01) more fat (by 2.69 pp) and calories (by 92.16 kJ∙100 g<sup>−1</sup>) than the skinless fillet, and over three times as much n-3 polyunsaturated fatty acids (n-3 PUFA), including eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids. In the skin-on fillet, the lipid oxidation and hydrolysis parameters were significantly higher, but did not deviate from the values specified for fresh fish and/or fish fit for consumption.https://www.mdpi.com/2076-2615/10/5/778Prussian Carpfatty acidsoxidative stabilitylipid hydrolysis
spellingShingle Piotr Skałecki
Agnieszka Kaliniak-Dziura
Piotr Domaradzki
Mariusz Florek
Monika Kępka
Fatty Acid Composition and Oxidative Stability of the Lipid Fraction of Skin-On and Skinless Fillets of Prussian Carp (<i>Carassius gibelio</i>)
Animals
Prussian Carp
fatty acids
oxidative stability
lipid hydrolysis
title Fatty Acid Composition and Oxidative Stability of the Lipid Fraction of Skin-On and Skinless Fillets of Prussian Carp (<i>Carassius gibelio</i>)
title_full Fatty Acid Composition and Oxidative Stability of the Lipid Fraction of Skin-On and Skinless Fillets of Prussian Carp (<i>Carassius gibelio</i>)
title_fullStr Fatty Acid Composition and Oxidative Stability of the Lipid Fraction of Skin-On and Skinless Fillets of Prussian Carp (<i>Carassius gibelio</i>)
title_full_unstemmed Fatty Acid Composition and Oxidative Stability of the Lipid Fraction of Skin-On and Skinless Fillets of Prussian Carp (<i>Carassius gibelio</i>)
title_short Fatty Acid Composition and Oxidative Stability of the Lipid Fraction of Skin-On and Skinless Fillets of Prussian Carp (<i>Carassius gibelio</i>)
title_sort fatty acid composition and oxidative stability of the lipid fraction of skin on and skinless fillets of prussian carp i carassius gibelio i
topic Prussian Carp
fatty acids
oxidative stability
lipid hydrolysis
url https://www.mdpi.com/2076-2615/10/5/778
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