Características qualitativas da carne de bubalinos submetida a diferentes períodos de maturação

• Autor(a) principal: Luz, Patricia Aparecida Cardoso da [UNESP]
• Data de Publicação: 2014
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/108441
• topic: Colesterol; Carne - Cor; Microbiologia; Carne - Qualidade; Meat Quality

The objective of this study was to evaluate the effects of different ageing times on the quality of buffalo meat, in order to suggest the ideal spot for the same color characteristics and beef tenderness of young buffalo feedlot finished. Longissimus muscle samples were collected from 10 animals aged 20-24 months old at 24 hours post mortem. Samples were transported to the laboratory for the realization of the first rib eye area (REA), fat thickness (SFT) and marbling. Then were submitted by 0, 7, 14 and 21 days of ripening yet analyzes of proximate composition, cholesterol, fatty acid profile, microbiological analysis, pH, weight losses by cooking, shear force, meat color and fat and sensory analysis. According to the data, it was observed that the carcass of young Murrah buffaloes from a dairy herd had low income housing, high EGS, less muscle development and justified by AOL slightest amount of marbling. The ageing of the meat of this species significantly affected the ash content, pH and red meat (P<0.05), but for these parameters, the changes found in a certain period of ageing were not maintained until 21 days. Ageing altered the profile of the fatty acid linoleic (P< 0.05), on the other hand, did not influence the concentrations of cholesterol in weight loss by cooking and bacterial growth (P>0.05), but there was evidence of higher initial contamination during the hygienic procedures adopted throughout the stages of product handling. The ageing improved the smoothness of buffalo meat from 20.43 days to significantly reduce shear force and is still evident that improvement in softness by sensory analysis, however changed the color of the meat, which suffered very obvious changes to human, and the fat that presented with lower lightness (L*) and more redness (a*) and yellow (b*) (P< 0.05) over the period of ageing eye. Thus, it is concluded that ageing of buffalo meat does not interfere with the microbiological quality, the concentration of cholesterol and the chemical composition, except for the ash content, but influences the fatty acid Linoleic profile, softness and color meat and fat. Also, choose the most suitable ageing time of buffalo for meat depends on the attribute to be valued.