| Journal: | Revista do Instituto Adolfo Lutz |
| Database: | PERIÓDICA |
| System number: | 000360604 |
| ISSN: | 0073-9855 |
| Authors: | Ramalho, Heryka M1 Costa, Ana Paula M. da1 Soares, Nathalia K.M1 Silva, Keith H.D1 Santos, Videanny V.A1 Dimenstein, Roberto1 |
| Institutions: | 1Universidade Federal do Rio Grande do Norte, Centro de Biociencias, Natal, Rio Grande do Norte. Brasil |
| Year: | 2007 |
| Volumen: | 66 |
| Number: | 3 |
| Pages: | 256-260 |
| Country: | Brasil |
| Language: | Portugués |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | The lack of information of cholesterol in food items and the implications of its consumption has resulted in a reduction in the use of animal food products. The purpose of this study was to determine the cholesterol concentrations in country chicken eggs, farm grown chicken eggs, and quail eggs that have been stored under different temperature conditions. Thirty fresh eggs were divided in five groups of six. The cholesterol content of one group was immediately analyzed; two groups were maintained at room temperature for 10 and 20 days; and other two groups were stored under refrigeration for the same period. The cholesterol dosage was performed by enzymatic method. The fresh eggs presented cholesterol concentrations of 956mg/100g, 813mg/100g and 921mg/100g, for the country chicken eggs, farm grown eggs, and quail eggs, respectively. In all types of eggs an increase of cholesterol concentration was observed during storage at room temperature and with refrigeration. In eggs stored at room temperature the increase was significant after 10 days, while under refrigeration, only after 20 days. We concluded that there was increase in the concentration of cholesterol eggs, and this increase was observed in less time, when the eggs were stored at room temperature |
| Portuguese abstract | A falta de informação sobre o colesterol nos alimentos tem levado à redução do consumo de produtos de origem animal, com conseqüentes desvantagens nutricionais. Esse trabalho teve o propósito de determinar a concentração de colesterol em ovos de galinha caipira, de granja e de codorna armazenados sob diferentes condições de temperatura. Trinta ovos frescos foram divididos em cinco grupos de seis. Em um grupo o colesterol foi analisado imediatamente; dois grupos foram mantidos sob temperatura ambiente por 10 e 20 dias e dois outros grupos sob refrigeração pelo mesmo período. A dosagem do colesterol foi realizada por método enzimático. Os ovos frescos apresentaram concentração de colesterol de 956mg/100g, 813mg/100g e 921mg/100g, para ovos de galinha caipira, de granja e codorna, respectivamente. A temperatura e o tempo de armazenamento elevaram os níveis de colesterol em todos os tipos de ovos. Nos ovos estocados a temperatura ambiente o aumento foi significativo após 10 dias, enquanto que sob refrigeração, somente após 20 dias. Concluímos que houve aumento na concentração de colesterol dos ovos estudados, e que esse aumento foi observado em menor tempo, quando os ovos foram estocados em temperatura ambiente |
| Disciplines: | Química, Medicina |
| Keyword: | Química de alimentos, Metabolismo y nutrición, Huevos, Gallinas, Codornices, Análisis nutricional, Colesterol |
| Keyword: | Chemistry, Medicine, Food chemistry, Metabolism and nutrition, Eggs, Hens, Quails, Nutritional analysis, Cholesterol |
| Full text: | Texto completo (Ver HTML) |
