A nitrogen factor for European pike-perch (Sander lucioperca), northern pike (Esox lucius), and sheatfish (Silurus glanis) fillets

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F21%3A43902652" target="_blank" >RIV/60076658:12520/21:43902652 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.3897/aiep.51.63281" target="_blank" >https://doi.org/10.3897/aiep.51.63281</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3897/aiep.51.63281" target="_blank" >10.3897/aiep.51.63281</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A nitrogen factor for European pike-perch (Sander lucioperca), northern pike (Esox lucius), and sheatfish (Silurus glanis) fillets

Popis výsledku v původním jazyce

Measures for consumer protection against food adulteration and misleading labeling are integrated into EU legislation, including methods for detection of misleading practices. Verification of meat content is available for marine products but not for freshwater fish because of the lack of standard nitrogen factors. The aim of this study was to establish nitrogen factors for European pike-perch Sander lucioperca (Linnaeus, 1758), northern pike Esox lucius Linnaeus, 1758, and sheatfish Silurus glanis Linnaeus, 1758. The study involved analysis of 808 fillet samples obtained in spring (March-April) and autumn (October-November) harvest seasons, 2018-2019, from seven Czech Republic fish rearing facilities. Samples with and without skin were analyzed for nitrogen content, dry matter, protein, ash, and fat according to established ISO methods. The recommended nitrogen factor for European pike-perch with the skin is 3.28 +/- 0.09 and without the skin is 3.21 +/- 0.09; for northern pike with the skin is 3.18 +/- 0.09 and without skin is 3.15 +/- 0.09; and for sheatfish with skin is 2.73 +/- 0.13 and without skin is 2.75 +/- 0.12. The established nitrogen factors will enable analysis of meat content to ensure that consumers are purchasing correctly described and labeled fish products.

Název v anglickém jazyce

A nitrogen factor for European pike-perch (Sander lucioperca), northern pike (Esox lucius), and sheatfish (Silurus glanis) fillets

Popis výsledku anglicky

Measures for consumer protection against food adulteration and misleading labeling are integrated into EU legislation, including methods for detection of misleading practices. Verification of meat content is available for marine products but not for freshwater fish because of the lack of standard nitrogen factors. The aim of this study was to establish nitrogen factors for European pike-perch Sander lucioperca (Linnaeus, 1758), northern pike Esox lucius Linnaeus, 1758, and sheatfish Silurus glanis Linnaeus, 1758. The study involved analysis of 808 fillet samples obtained in spring (March-April) and autumn (October-November) harvest seasons, 2018-2019, from seven Czech Republic fish rearing facilities. Samples with and without skin were analyzed for nitrogen content, dry matter, protein, ash, and fat according to established ISO methods. The recommended nitrogen factor for European pike-perch with the skin is 3.28 +/- 0.09 and without the skin is 3.21 +/- 0.09; for northern pike with the skin is 3.18 +/- 0.09 and without skin is 3.15 +/- 0.09; and for sheatfish with skin is 2.73 +/- 0.13 and without skin is 2.75 +/- 0.12. The established nitrogen factors will enable analysis of meat content to ensure that consumers are purchasing correctly described and labeled fish products.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40103 - Fishery

Projekt

<a href="/cs/project/QK1810095" target="_blank" >QK1810095: Stanovení dusíkových faktorů pro vybrané druhy sladkovodních ryb jako indikátorů obsahu rybí složky v „čerstvých“ rybách a ve výrobcích ze sladkovodních ryb</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Acta Ichthyologica et Piscatoria

ISSN

0137-1592

e-ISSN

—

Svazek periodika

51

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

11

Strana od-do

119-129

Kód UT WoS článku

000683381300001

EID výsledku v databázi Scopus

2-s2.0-85111116665