The effect of gaseous ozone treatment on egg components.
J Sci Food Agric
; 90(4): 593-8, 2010 Mar 15.
Article
em En
| MEDLINE
| ID: mdl-20355086
ABSTRACT
BACKGROUND:
Because of the salmonella problem in poultry, disinfection technologies are necessary. Ozone is a strong oxidant used for the disinfection of surfaces, drinking water and foods. However, since ozone not only destroys bacteria but may also damage eggs, it is necessary to clarify the effects of ozone treatment on hatching egg components. In this study, doses of gaseous ozone ranging from 10 to 50 mL L(-1) were tested. The vitamin A and E contents and fatty acid composition of the egg yolk were determined. To detect possible damage to the DNA of the germ disc, single-cell gel electrophoresis was used. Moreover, free SH groups were measured in the egg white. The soluble cuticula proteins were analysed by polyacrylamide gel electrophoresis.RESULTS:
The yolk was not significantly affected by ozone treatment. However, the DNA of the germ disc was attacked and a significant decrease in free SH groups in the egg white was recorded at 50 mL L(-1) ozone. Even at low ozone doses the soluble cuticula proteins were completely destroyed.CONCLUSION:
Significant alterations of egg components were caused by 50 mL L(-1) ozone. At lower ozone doses the oxidative processes occurred mainly at the egg surface and are therefore probably harmless to the developing embryo.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ozônio
/
Aves Domésticas
/
Proteínas
/
Estresse Oxidativo
/
Casca de Ovo
/
Clara de Ovo
/
Gema de Ovo
Limite:
Animals
Idioma:
En
Revista:
J Sci Food Agric
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
Alemanha