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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

40103 - Fishery

Project

<a href="/en/project/QK1810095" target="_blank" >QK1810095: Determination of nitrogen factors for selected species of freshwater fish as indicators of the fish component content of "fresh" fish and products from freshwater fish</a><br>

Continuities

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

Publication year

2021

Confidentiality

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

Name of the periodical

Acta Ichthyologica et Piscatoria

ISSN

0137-1592

e-ISSN

—

Volume of the periodical

51

Issue of the periodical within the volume

2

Country of publishing house

PL - POLAND

Number of pages

11

Pages from-to

119-129

UT code for WoS article

000683381300001

EID of the result in the Scopus database

2-s2.0-85111116665