Avaliação físico-química, microbiológica e sensorial do presunto de peru submetido à tecnologia de alta pressão hidrostática

Abstract

The high hydrostatic pressure (HHP) is a technology that has advantages over conventional relationship the technologies that use heat and works with high pressure (100 MPa to 900MPa), maintains the sensory characteristics of food and close to the original, ensures a food safe from microbiological point of view and with increasing lifetime. In this study, were used pressures of 200 to 400MPa, with time between 5, 10 and 15 minutes at room temperature for turkey ham. We performed the microbiological analyses (Salmonella sp, positive Staphylococcus coagulase, Coliforms to 45 ° C, reducing Clostridium sulphite and lactic-acid bacteria plating count standard of strict psychrotrophic and facultative anaerobes), physical-chemical (pH, aw, humidity, protein, ash, lipids and carbohydrates), lipids oxidation, color analysis of instrumental, SDS-PAGE electrophoresis and sensory analysis. From the results obtained, it can be observed that the condition 400-15 turkey ham was the increase of life in Approximately 45 days, no changes were observed in proximate composition, pH and aw, and no were verified changes in oxidation of lipids (peroxide index and index of TBA), only the oxidation of color in the 400MPa pressures of 5 and 15 minutes could be observed. There were no changes for the proteins actin and myosin, after treatment. To sensory, an analysis was Performed Quantitative Descriptive of the product, identifying it, and the Test Preferably with a hedonic scale of 9 points, it was a good acceptance by consumers. The treatment was effective in the APH likely to be applied to the product in question and used commercially.