Stability of the pigmentation of egg yolks enriched with omega-3 and carophyll stored at room temperature and under refrigeration
The objective of this experiment was to study yolk pigmentation stability in omega 3 (ω-3) enriched eggs stored under different temperatures in zeaxanthin equivalent (by using visible light spectrophotometer) and visual score (with values obtained by yolk color fan) and to verify the correl...
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Sociedade Brasileira de Zootecnia
2011-07-01
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doaj-7b882e7bada44535aa855879d78424f72020-11-25T00:26:27ZengSociedade Brasileira de ZootecniaRevista Brasileira de Zootecnia1516-35981806-92902011-07-014071540154410.1590/S1516-35982011000700020Stability of the pigmentation of egg yolks enriched with omega-3 and carophyll stored at room temperature and under refrigerationVanessa Camarinha BarbosaArlene GasparLigia Fátima Lima CalixtoTarcísio Simões Pereira AgostinhoThe objective of this experiment was to study yolk pigmentation stability in omega 3 (ω-3) enriched eggs stored under different temperatures in zeaxanthin equivalent (by using visible light spectrophotometer) and visual score (with values obtained by yolk color fan) and to verify the correlation among those methodologies. Three hundred big eggs from Isa Brown hens were distributed into two lots each one containing 150 eggs, stored at room temperature (26.5ºC) or under refrigeration (7.9ºC) for 35 days. It was used a completely randomized design in a 2 × 6 factorial arrangement (storage temperature × storage period). Pigmentation observed with the yolk color fan was steady during the experiment period when eggs were kept under refrigeration and it reduced when stored at room temperature. At spectrophotometric quantification, carotenoids decreased in both temperatures studied. There is a high correlation between the methods of analysis for eggs stored at room temperature and for eggs stored under refrigeration as well, but this correlation is sharper when eggs are stored under refrigeration.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000700020carotenoidscolour fanspectrophotometeryolk |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Vanessa Camarinha Barbosa Arlene Gaspar Ligia Fátima Lima Calixto Tarcísio Simões Pereira Agostinho |
spellingShingle |
Vanessa Camarinha Barbosa Arlene Gaspar Ligia Fátima Lima Calixto Tarcísio Simões Pereira Agostinho Stability of the pigmentation of egg yolks enriched with omega-3 and carophyll stored at room temperature and under refrigeration Revista Brasileira de Zootecnia carotenoids colour fan spectrophotometer yolk |
author_facet |
Vanessa Camarinha Barbosa Arlene Gaspar Ligia Fátima Lima Calixto Tarcísio Simões Pereira Agostinho |
author_sort |
Vanessa Camarinha Barbosa |
title |
Stability of the pigmentation of egg yolks enriched with omega-3 and carophyll stored at room temperature and under refrigeration |
title_short |
Stability of the pigmentation of egg yolks enriched with omega-3 and carophyll stored at room temperature and under refrigeration |
title_full |
Stability of the pigmentation of egg yolks enriched with omega-3 and carophyll stored at room temperature and under refrigeration |
title_fullStr |
Stability of the pigmentation of egg yolks enriched with omega-3 and carophyll stored at room temperature and under refrigeration |
title_full_unstemmed |
Stability of the pigmentation of egg yolks enriched with omega-3 and carophyll stored at room temperature and under refrigeration |
title_sort |
stability of the pigmentation of egg yolks enriched with omega-3 and carophyll stored at room temperature and under refrigeration |
publisher |
Sociedade Brasileira de Zootecnia |
series |
Revista Brasileira de Zootecnia |
issn |
1516-3598 1806-9290 |
publishDate |
2011-07-01 |
description |
The objective of this experiment was to study yolk pigmentation stability in omega 3 (ω-3) enriched eggs stored under different temperatures in zeaxanthin equivalent (by using visible light spectrophotometer) and visual score (with values obtained by yolk color fan) and to verify the correlation among those methodologies. Three hundred big eggs from Isa Brown hens were distributed into two lots each one containing 150 eggs, stored at room temperature (26.5ºC) or under refrigeration (7.9ºC) for 35 days. It was used a completely randomized design in a 2 × 6 factorial arrangement (storage temperature × storage period). Pigmentation observed with the yolk color fan was steady during the experiment period when eggs were kept under refrigeration and it reduced when stored at room temperature. At spectrophotometric quantification, carotenoids decreased in both temperatures studied. There is a high correlation between the methods of analysis for eggs stored at room temperature and for eggs stored under refrigeration as well, but this correlation is sharper when eggs are stored under refrigeration. |
topic |
carotenoids colour fan spectrophotometer yolk |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000700020 |
work_keys_str_mv |
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