ABSTRACT The aim of this study was to assess the internal quality of free-range eggs available for sale in Alfenas – MG, Brazil, and stored under refrigerated conditions (maximum and minimum temperatures of 9.7 and 6.7 °C, respectively). The experimental design was completely randomized, structured as a 2x5 factorial arrangement involving two types of retail outlets (supermarket (S) and open-air market (OA)) and five storage periods (1, 8, 15, 22, and 29 days), resulting in 10 treatments. Each treatment had six replicates, represented by individual eggs. The following parameters were evaluated: Haugh unit (HU); percentage of egg weight loss (WL%); percentages of albumen, yolk, and shell; yolk index (YI); albumen index (AI); yolk pH; and yolk color. Egg weight loss increased (p<0.05) with the length of the storage period. Eggs acquired from S were deemed to be of inferior quality (HU < 60), in contrast to those obtained from OA (p<0.05). A significant interaction effect was noted for YI (p<0.05), with eggs from S exhibiting higher YI values than those from OA at 15 and 22 days of storage. Additionally, eggs from S had diminished AI values (p<0.05) when compared to those acquired from OA. The yolk color in eggs from S was more intense than that in eggs from OA (p<0.05). A lower yolk percentage was detected in eggs from S relative to those from OA (p<0.05). Therefore, eggs sold in Alfenas – MG, Brazil, from open-air markets possess superior quality compared to those sold in supermarkets. freerange free range MG Brazil maximum 97 9 7 9. 67 6 6. C °C respectively. respectively . respectively) randomized x 2x supermarket (S openair open air (OA) 1, 1 (1 8 2 days, , days) treatments replicates evaluated HU (HU) WL% WL (WL%) shell (YI) (AI) pH p<0.05 p005 p 0 05 (p<0.05 period 60, 60 60) p<0.05. p<0.05, Additionally Therefore supermarkets (OA ( (WL% (YI (AI p<0.0 p00 (p<0.0 (WL p<0. p0 (p<0. p<0 (p<0 p< (p< (p
RESUMO Objetivou-se avaliar a qualidade interna de ovos tipo caipira comercializados na cidade de Alfenas – MG, armazenados sob refrigeração (máxima 9,7°C e mínima 6,7°C). Os ovos foram distribuídos em um delineamento inteiramente casualizado, em esquema fatorial 2x5, sendo dois estabelecimentos comerciais (supermercado (S) e feira livre (FL)) e cinco períodos de armazenamento (um, oito, 15, 22, 29 dias) totalizando 10 tratamentos com 6 repetições (ovo) cada. As variáveis analisadas foram unidade Haugh(UH), perda de peso dos ovos (PP%), porcentagem de albúmen, gema e casca, índice de gema (IG) e albúmen (IA), pH de gema e coloração da gema. A PP% aumentou (p<0,05) conforme o período de armazenamento. Os ovos do S foram classificados como de baixa qualidade (UH < 60), diferindo dos ovos da FL (p<0,05). Para o IG observou-se uma interação significativa (p<0,05), de modo que, aos 15 e 22 dias de armazenamento os ovos do S apresentaram maior IG que aqueles provenientes da FL. Os ovos do S apresentaram valores inferiores de IA (p<0,05) em relação aos adquiridos na FL. Ovos do S apresentaram coloração de gema mais acentuada que os ovos comercializados na FL (p<0,05). Constatou-se menor porcentagem de gema dos ovos do S quando comparados com os da FL (p<0,05). Os ovos comercializados na cidade de Alfenas-MG provenientes de feira livre apresentam qualidade superior aos do supermercado. Objetivouse Objetivou se MG máxima 97C C 9 7 6,7°C. 67C 6,7°C . 6,7°C) casualizado 2x5 x supermercado (S (FL) um, (um oito 2 1 ovo (ovo cada HaughUH, HaughUH Haugh UH , Haugh(UH) PP%, PP (PP%) casca (IG IA, (IA) p<0,05 p005 p 0 05 (p<0,05 60, 60 60) p<0,05. observouse observou p<0,05, Constatouse Constatou AlfenasMG 2x (FL Haugh(UH (PP% (IA p<0,0 p00 (p<0,0 (PP p<0, p0 (p<0, p<0 (p<0 p< (p< (p