Qualidade da paleta maturada de cordeiros alimentados com diferentes níveis de feno de erva-sal (Atriplex nummularia)
Carregando...
Data
2011-02-18
Autores
Costa, Tharcilla Isabella Rodrigues [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Estadual Paulista (Unesp)
Resumo
Objetivou-se com este trabalho avaliar o efeito do nível de feno de erva-sal e tempo de maturação sobre as características físicas, químicas e sensoriais da carne de cordeiros Santa Inês. Foram utilizadas 60 paletas de cordeiros machos alimentados com 30, 40, 50 e 60% de feno de erva-sal, que foram embaladas à vácuo e mantidas refrigeradas em temperatura de 0 ± 1 oC por 0, 7 e 14 dias de maturação. O delineamento experimental utilizado foi o inteiramente casualizado em esquema fatorial três × quatro (três tempos de maturação e quatro níveis de feno de erva-sal). Paletas maturadas por um período de 14 dias apresentaram menor teor de umidade (75,94%) e maior teor de proteína bruta (18,19%) quando comparadas as paletas in natura e as maturadas por 7 dias. A inclusão do feno de erva-sal na dieta de cordeiros impediu que ocorresse a rancidez oxidativa durante o processo de maturação por até 14 dias de estocagem. Houve interação (P<0,05) entre nível de feno de erva-sal e tempo de maturação para a luminosidade (L*). Níveis de inclusão do feno de erva-sal elevaram o pH e o teor de vermelho (a*) da carne. A força de cisalhamento, a perda de peso por cozimento e a capacidade de retenção de água não foram influenciados (P>0,05) pelos fatores estudados, apresentando valores médios de 3,06kg/cm2, 37,28% e 76,71% respectivamente. A maturação da carne ovina não alterou a força de cisalhamento, entretanto os provadores avaliaram a carne maturada como mais macia e menos fibrosa
The objective of this study was to evaluate the effect of level of hay saltbush and aging time on the physical , chemical and sensory quality lamb meat from Santa Ines. We used 60 shoulders of male lambs fed 30, 40, 50 and 60% hay saltbush, which were vacuum packed and kept refrigerated at a temperature of 0 ± 1 oC for 0, 7 and 14 days of aging. The experimental design was completely randomized factorial three × four (three aging times and four levels of hay saltbush). Shoulders aged for a period of 14 days had lower moisture content (75.94%) and higher crude protein content (18.19%) compared with fresh shoulders and aged for 7 days. The inclusion of saltbush hay in the diet of lambs prevented the oxidation occurred during the ripening process for up to 14 days of storage. There was an interaction (P < 0.05) between the level of saltbush hay and aging time for the relative lightness (L *). Inclusion levels of saltbush hay increased the pH and relative redness (a*) of meat. The shear force, weight loss by cooking and water-holding capacity were not affected (P > 0.05) by treatments, showing average values of 3.06 kg/cm2, 37.28% and 76.71% respectively. The aging of the meat that did not alter the shear force, however the panel evaluated meat matured as softer and less fibrous
The objective of this study was to evaluate the effect of level of hay saltbush and aging time on the physical , chemical and sensory quality lamb meat from Santa Ines. We used 60 shoulders of male lambs fed 30, 40, 50 and 60% hay saltbush, which were vacuum packed and kept refrigerated at a temperature of 0 ± 1 oC for 0, 7 and 14 days of aging. The experimental design was completely randomized factorial three × four (three aging times and four levels of hay saltbush). Shoulders aged for a period of 14 days had lower moisture content (75.94%) and higher crude protein content (18.19%) compared with fresh shoulders and aged for 7 days. The inclusion of saltbush hay in the diet of lambs prevented the oxidation occurred during the ripening process for up to 14 days of storage. There was an interaction (P < 0.05) between the level of saltbush hay and aging time for the relative lightness (L *). Inclusion levels of saltbush hay increased the pH and relative redness (a*) of meat. The shear force, weight loss by cooking and water-holding capacity were not affected (P > 0.05) by treatments, showing average values of 3.06 kg/cm2, 37.28% and 76.71% respectively. The aging of the meat that did not alter the shear force, however the panel evaluated meat matured as softer and less fibrous
Descrição
Palavras-chave
Carne ovina, Oxidação, Maturação, Aging, Cooking, meat, Oxidation, Sheep, Tenderness
Como citar
COSTA, Tharcilla Isabella Rodrigues. Qualidade da paleta maturada de cordeiros alimentados com diferentes níveis de feno de erva-sal (Atriplex nummularia). 2011. xi, 42 f. Dissertação (mestrado) - Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, 2011.