The effect of a diet supplemented with sea-buckthorn pomace on the colour and viscosity of the egg yolk

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62157124%3A16270%2F17%3A43875557" target="_blank" >RIV/62157124:16270/17:43875557 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.2754/avb201786030303" target="_blank" >http://dx.doi.org/10.2754/avb201786030303</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2754/avb201786030303" target="_blank" >10.2754/avb201786030303</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The effect of a diet supplemented with sea-buckthorn pomace on the colour and viscosity of the egg yolk

Popis výsledku v původním jazyce

Sea-buckthorn pomace is a very valuable product which contains not only important nutrients but also high-quality oils. The question addressed in the present study was to what extent the diet containing the sea-buckthorn pomace would affect the viscosity and colour of egg yolk measured in the CIELAB system. The feeding mixture for laying hens was supplemented with 20; 50 and 100 g?kg-1 of sea-buckthorn pomace. As a result, colour indices of the egg yolk such as L*, a* and b* changed significantly (? = 0.01). The greatest relative enhancement was observed for indicator a* for the red colour. Visually, this corresponds to the more intense orange colour of the egg yolk. The addition of sea-buckthorn pomace to the diet for laying hens resulted in a larger increase in indicator ?E* (CIE total colour difference) compared to the control group. Colour indicator hab is the only indicator whose value oscillated around that determined for the control group. The addition of sea-buckthorn pomace to the diet resulted in an increase in colour indices a*, b* and C*ab. Indicator ?E* also increased significantly with an increasing amount of sea-buckthorn pomace in a diet. Egg yolks were darker, had more intense red and yellow colours, and showed lower viscosity which are all features preferred by the consumer.

Název v anglickém jazyce

The effect of a diet supplemented with sea-buckthorn pomace on the colour and viscosity of the egg yolk

Popis výsledku anglicky

Sea-buckthorn pomace is a very valuable product which contains not only important nutrients but also high-quality oils. The question addressed in the present study was to what extent the diet containing the sea-buckthorn pomace would affect the viscosity and colour of egg yolk measured in the CIELAB system. The feeding mixture for laying hens was supplemented with 20; 50 and 100 g?kg-1 of sea-buckthorn pomace. As a result, colour indices of the egg yolk such as L*, a* and b* changed significantly (? = 0.01). The greatest relative enhancement was observed for indicator a* for the red colour. Visually, this corresponds to the more intense orange colour of the egg yolk. The addition of sea-buckthorn pomace to the diet for laying hens resulted in a larger increase in indicator ?E* (CIE total colour difference) compared to the control group. Colour indicator hab is the only indicator whose value oscillated around that determined for the control group. The addition of sea-buckthorn pomace to the diet resulted in an increase in colour indices a*, b* and C*ab. Indicator ?E* also increased significantly with an increasing amount of sea-buckthorn pomace in a diet. Egg yolks were darker, had more intense red and yellow colours, and showed lower viscosity which are all features preferred by the consumer.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40301 - Veterinary science

Projekt

—

Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Acta veterinaria Brno

ISSN

0001-7213

e-ISSN

—

Svazek periodika

86

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

6

Strana od-do

303-308

Kód UT WoS článku

000416306200013

EID výsledku v databázi Scopus

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