Elaboração e qualidade de marinado ovino tipo bracciola submetido a diferentes métodos de cocção

Abstract

The sheep bracciola is a meat product made with the meat of the sheep neck, marinated and wrapped, popularly known as the steak turtleneck, which is presented as a choice of meat products derived from ovine. Considered a low commercial value meat, the use of marination and cooking method are alternatives to adding value and offering a differentiated product to the consumer market. This research aimed to develop and evaluate the microbiological quality, physico-chemical and sensory of sheep bracciola subjected to different types of cooking: sous vide, combined oven and autoclave. The microbiological evaluation were assessed total coliforms and thermotolerant, Staphylococcus aureus, sulphite-reducing Clostridium and presence / absence of Salmonella spp. The physicochemical evaluation, the following parameters were analyzed: yield, water holding capacity, cooking loss of weight, color, pH, Aa, texture and chemical composition. Sensory analysis was conducted by 12 panelists trained through a methodology based on the Quantitative Descriptive Analysis (QDA) in which the color attributes, presence of nerves, degree of hydration, sheep aroma, flavor sheep, salty, tenderness, juiciness and fibrousness were studied . The results of the microbiological analyzes revealed the absence of Salmonella spp. and low total coliform counts and thermotolerant, Staphylococcus aureus and sulphite-reducing Clostridium in the samples evaluated. The physical and chemical quality of sheep bracciola showed an excellent nutritional value, for each 100g of sheep bracciola presented an average of 73g of moisture, 1.6 g ash, 16.0 g of protein and 2.6 g of lipid. In the instrumental texture analysis, samples were highlighted subjected to cooking sous vide (70 ° C for 6h, 12h and 24h) and autoclave, the combined oven under the conditions used in this study, were not enough to make it soft , serving as an indicator for the selection of these samples in the sensory evaluation. The sample baked in an autoclave recorded the highest scores on the attributes studied in sensory analysis, highlighting the softness attribute. Thus, it is concluded that the samples ovine bracciola coupled with the use of cooking methods sous vide and the autoclave showed detachable nutritional value, high protein, low fat and high quality for their sensory softness. Also, because it is inexpensive raw material, the use of this by-product of slaughter can generate income for producers, leveraging the goat and sheep farming sector.