Possibilities of enhancing the colour of egg yolk

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62157124%3A16270%2F12%3A43871152" target="_blank" >RIV/62157124:16270/12:43871152 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1002/jsfa.4657" target="_blank" >http://dx.doi.org/10.1002/jsfa.4657</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/jsfa.4657" target="_blank" >10.1002/jsfa.4657</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Possibilities of enhancing the colour of egg yolk

Popis výsledku v původním jazyce

BACKGROUND: This study attempts to compare two possibilities of enhancing the colour of egg yolk. One of them is based on the ecological rearing of laying hens on natural green grass whereas the other uses a feeding dose supplemented with natural pigments in laying hens reared in individual cages. Is it possible to distinguish these two technologies using yolk colour determination in the CIELAB system? RESULTS: Yolk colour parameters such as L?, a?, and b? in the group of grazed hens are significantly different (alfa = 0.001) from those observed in hens reared in cages. The yolk colour shows a darker, redder and more yellow colour. The greatest difference was seen in the red colour parameter, a?, that increased more than twice. Visually, this means a shift towards a more orange colour. Compared to grazing in the meadow (E? = 13.257), the addition of artificial pigments in the feed resulted in a more significant increase in the parameter E? (CIE total colour difference), with the greate

Název v anglickém jazyce

Possibilities of enhancing the colour of egg yolk

Popis výsledku anglicky

BACKGROUND: This study attempts to compare two possibilities of enhancing the colour of egg yolk. One of them is based on the ecological rearing of laying hens on natural green grass whereas the other uses a feeding dose supplemented with natural pigments in laying hens reared in individual cages. Is it possible to distinguish these two technologies using yolk colour determination in the CIELAB system? RESULTS: Yolk colour parameters such as L?, a?, and b? in the group of grazed hens are significantly different (alfa = 0.001) from those observed in hens reared in cages. The yolk colour shows a darker, redder and more yellow colour. The greatest difference was seen in the red colour parameter, a?, that increased more than twice. Visually, this means a shift towards a more orange colour. Compared to grazing in the meadow (E? = 13.257), the addition of artificial pigments in the feed resulted in a more significant increase in the parameter E? (CIE total colour difference), with the greate

Druh

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

CEP obor

GH - Výživa hospodářských zvířat

OECD FORD obor

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Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Journal of the Science of Food and Agriculture

ISSN

0022-5142

e-ISSN

—

Svazek periodika

92

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

4

Strana od-do

853-856

Kód UT WoS článku

000299888700019

EID výsledku v databázi Scopus

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