Nitrogen factor of common carp Cyprinus carpio fillets with and without skin

Abstract Consumer protection against food adulteration and misleading labelling is integrated into EU legislation, but accurate analysis of the meat content of farmed freshwater fish products is not possible because of the lack of established nitrogen factors for farmed common carp. The aim of this...

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Main Authors:	Alena Honzlova, Helena Curdova, Lenka Schebestova, Pavel Bartak, Alzbeta Stara, Josef Priborsky, Anna Koubova, Zdenka Svobodova, Josef Velisek
Format:	article
Language:	EN
Published:	Nature Portfolio 2021
Subjects:	Medicine R Science Q
Online Access:	https://doaj.org/article/23fef15d0ba34a9dacd53e9ff4962dbc
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spelling	oai:doaj.org-article:23fef15d0ba34a9dacd53e9ff4962dbc2021-12-02T15:36:30ZNitrogen factor of common carp Cyprinus carpio fillets with and without skin10.1038/s41598-021-89491-y2045-2322https://doaj.org/article/23fef15d0ba34a9dacd53e9ff4962dbc2021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-89491-yhttps://doaj.org/toc/2045-2322Abstract Consumer protection against food adulteration and misleading labelling is integrated into EU legislation, but accurate analysis of the meat content of farmed freshwater fish products is not possible because of the lack of established nitrogen factors for farmed common carp. The aim of this study was to determine nitrogen factors for farmed common carp Cyprinus carpio. Seven-hundred samples collected in 2018–2019 in three harvest seasons (March/April, Jun/July, and October/November) at seven locations in the Czech Republic were analysed for nitrogen, dry matter, protein, ash, and fat content according to standard ISO methods. The recommended nitrogen factor for fat-free common carp fillet with skin is 3.04 ± 0.13 and, for fillet without skin, 2.95 ± 0.12. Availability of nitrogen factors for common carp can help ensure that consumers are purchasing correctly labelled products.Alena HonzlovaHelena CurdovaLenka SchebestovaPavel BartakAlzbeta StaraJosef PriborskyAnna KoubovaZdenka SvobodovaJosef VelisekNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Alena Honzlova Helena Curdova Lenka Schebestova Pavel Bartak Alzbeta Stara Josef Priborsky Anna Koubova Zdenka Svobodova Josef Velisek Nitrogen factor of common carp Cyprinus carpio fillets with and without skin
description	Abstract Consumer protection against food adulteration and misleading labelling is integrated into EU legislation, but accurate analysis of the meat content of farmed freshwater fish products is not possible because of the lack of established nitrogen factors for farmed common carp. The aim of this study was to determine nitrogen factors for farmed common carp Cyprinus carpio. Seven-hundred samples collected in 2018–2019 in three harvest seasons (March/April, Jun/July, and October/November) at seven locations in the Czech Republic were analysed for nitrogen, dry matter, protein, ash, and fat content according to standard ISO methods. The recommended nitrogen factor for fat-free common carp fillet with skin is 3.04 ± 0.13 and, for fillet without skin, 2.95 ± 0.12. Availability of nitrogen factors for common carp can help ensure that consumers are purchasing correctly labelled products.
format	article
author	Alena Honzlova Helena Curdova Lenka Schebestova Pavel Bartak Alzbeta Stara Josef Priborsky Anna Koubova Zdenka Svobodova Josef Velisek
author_facet	Alena Honzlova Helena Curdova Lenka Schebestova Pavel Bartak Alzbeta Stara Josef Priborsky Anna Koubova Zdenka Svobodova Josef Velisek
author_sort	Alena Honzlova
title	Nitrogen factor of common carp Cyprinus carpio fillets with and without skin
title_short	Nitrogen factor of common carp Cyprinus carpio fillets with and without skin
title_full	Nitrogen factor of common carp Cyprinus carpio fillets with and without skin
title_fullStr	Nitrogen factor of common carp Cyprinus carpio fillets with and without skin
title_full_unstemmed	Nitrogen factor of common carp Cyprinus carpio fillets with and without skin
title_sort	nitrogen factor of common carp cyprinus carpio fillets with and without skin
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/23fef15d0ba34a9dacd53e9ff4962dbc
work_keys_str_mv	AT alenahonzlova nitrogenfactorofcommoncarpcyprinuscarpiofilletswithandwithoutskin AT helenacurdova nitrogenfactorofcommoncarpcyprinuscarpiofilletswithandwithoutskin AT lenkaschebestova nitrogenfactorofcommoncarpcyprinuscarpiofilletswithandwithoutskin AT pavelbartak nitrogenfactorofcommoncarpcyprinuscarpiofilletswithandwithoutskin AT alzbetastara nitrogenfactorofcommoncarpcyprinuscarpiofilletswithandwithoutskin AT josefpriborsky nitrogenfactorofcommoncarpcyprinuscarpiofilletswithandwithoutskin AT annakoubova nitrogenfactorofcommoncarpcyprinuscarpiofilletswithandwithoutskin AT zdenkasvobodova nitrogenfactorofcommoncarpcyprinuscarpiofilletswithandwithoutskin AT josefvelisek nitrogenfactorofcommoncarpcyprinuscarpiofilletswithandwithoutskin
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Nitrogen factor of common carp Cyprinus carpio fillets with and without skin

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