Monitoring of physicochemical changes in frozen fish muscle tissue

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62157124%3A16270%2F11%3A43870345" target="_blank" >RIV/62157124:16270/11:43870345 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Monitoring of physicochemical changes in frozen fish muscle tissue

Popis výsledku v původním jazyce

The aim of the study was to monitor physicochemical parameters (pH, nitrogen trimethylamine N-TMA, total volatile basic nitrogen TVBN, free fatty acids FFA, peroxide value and thiobarbituric acid assay TBA) of postmortal changes in muscle tissue of silver carp (Hypophthalmichthys molitrix) during a period of storage at -18 °C. Fresh silver carp samples and samples after 3, 6, 9 and 12 months of storage were tested. The degree of acidification during the experiment was insignificant (P } 0.05). Proteolytic changes were almost stopped and TVBN levels remained unchanged (P } 0.05), while TMA levels fluctuated significantly (P { 0.01) between months 3 and 12. The essential were lipid hydrolysis and oxidation, which caused a significant increase in FFA values (5.89 +- 0.99 % total lipids as oleic acid), peroxides (9.90 +- 2.83 mekv O2.kg-1) and TBA values (50.76 +- 31.52 mg MDA.kg-1). The shelf life recommended for silver carp was set at 3 months.

Název v anglickém jazyce

Monitoring of physicochemical changes in frozen fish muscle tissue

Popis výsledku anglicky

The aim of the study was to monitor physicochemical parameters (pH, nitrogen trimethylamine N-TMA, total volatile basic nitrogen TVBN, free fatty acids FFA, peroxide value and thiobarbituric acid assay TBA) of postmortal changes in muscle tissue of silver carp (Hypophthalmichthys molitrix) during a period of storage at -18 °C. Fresh silver carp samples and samples after 3, 6, 9 and 12 months of storage were tested. The degree of acidification during the experiment was insignificant (P } 0.05). Proteolytic changes were almost stopped and TVBN levels remained unchanged (P } 0.05), while TMA levels fluctuated significantly (P { 0.01) between months 3 and 12. The essential were lipid hydrolysis and oxidation, which caused a significant increase in FFA values (5.89 +- 0.99 % total lipids as oleic acid), peroxides (9.90 +- 2.83 mekv O2.kg-1) and TBA values (50.76 +- 31.52 mg MDA.kg-1). The shelf life recommended for silver carp was set at 3 months.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GM - Potravinářství

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Agriculturae Conspectus Scientificus

ISSN

1331-7768

e-ISSN

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Svazek periodika

76

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

HR - Chorvatská republika

Počet stran výsledku

4

Strana od-do

201-204

Kód UT WoS článku

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EID výsledku v databázi Scopus

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