Processamento da carne-de-sol com carne maturada: qualidade sensorial e textura

• Autor(a) principal: Salvino, Alanne Tamize de Medeiros
• Data de Publicação: 2011
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UFPB
• Texto Completo: https://repositorio.ufpb.br/jspui/handle/tede/4004
• topic: Carne-de-sol; Características do processo; Maturação; Qualidade; Sun meat; Characteristics of the process; Maturation; Quality; CIENCIA E TECNOLOGIA DE ALIMENTOS::TECNOLOGIA DE ALIMENTOS

Sun meat is a widely accepted foodstuff in the Brazilian northeast, with processing generally carried out by hand by small producers who, due to the absence of specific legislation, show differences in their acquisition processes, which influences the final quality with considerable variation in its physical-chemical, microbiological and sensory aspects. This study aimed to characterize the sun meat processing commercialized in the municipality of João Pessoa/PB through structured interviews with shopkeepers and producers and to evaluate the physical-chemical, microbiological and sensory characteristics of sun meat processed with previously matured raw material compared to sun meat commercialized in the municipality of João Pessoa/PB. Three sun meat samples were evaluated, with two being processed at pilot scale, differentiated by the previous treatment of the raw material, one being traditional and the other having matured previously during 14 days. The samples were processed using the commercial cut inside round (m. semimenbranosus e m. adductor femoris), following the processing stages (preparation of the raw material, salting, washing, drying and refrigeration) in accordance with the survey carried out among the producers of the city of João Pessoa/PB. The processed samples were compared with a commercial sample from the city of João Pessoa/PB, which were evaluated in relation to its physical-chemical quality: composition, centesimal composition, chlorates, water activity (Aa), pH, water retention capacity (CRA), color (L*, a*, b*) and shear force with a Warner-Bratzler blade, microbiological analysis (total coliforms and thermotolerant bacteria, Salmonella sp e Estafilococos coagulase positiva) and sensory analysis, by trained panelists, and, acceptance by potential consumers. 79 shopkeepers were interviewed in 15 visited establishments of which, 31,6% process their own sun meat they commercialize, and the slaughterhouses operation was checked (39,2%) regarding the supply of sun meat commercialized in these establishments. A similarity in the processing techniques of processed sun meat was observed for both small producers and slaughterhouses, however, a lack of standardization of operations was found in relation to the type and salting time and the way in which drying was realized in the sun meat processing. The maturing process did not influence the physical-chemical, nor the microbiological quality of the sun meat, not being different from the traditional, nor the commercial sun meat. However, the addition of sodium chlorate and the salting time of the present study were sufficient to reduce the humidity and to increase the chlorate concentrations of the products, but these variations were not sufficient to reduce the Aa, no difference was observed (p≥ 0,05) between the raw material and the products. However, low content of chlorates between 2,49 and 4,66, elevated. Aa between 0,94 and 0,95 and pH between 5,8 and 6,1 show the high perishability of the product, which should have double attention for the use of good practices during its processing, using matured raw material. The maturing process also did not influence the sensory quality of the sun meat, not having any difference (p≥ 0,05), according to both the trained panelists and the acceptance test, where the three samples obtained an acceptance rate of over 60%. The maturing process did not produce the expected effects. Therefore, further study with longer maturing times, and, or, new techniques with the intent of providing even greater tenderness of the sun meat, is recommended.