Tecnología de alimentos y evolución en los alimentos de textura modificada; del triturado o el deshidratado a los productos actuales / Texture-modified foods; from grounding or dehydration to current products

Las dietas trituradas son unas de las dietas más utilizadas en hospitales y residencias de ancianos. Estas dietas elaboradas de manera tradicional pueden tener un bajo valor nutricional, especialmente suelen tener bajo contenido en energía y proteínas. Su uso continuado puede provocar déficits nutricionales y comprometer el estado nutricional del paciente. Durante las últimas décadas hemos visto cómo la tecnología ha evolucionado y ahora es posible encontrar en el mercado productos industriales con un completo valor nutricional y una textura adecuada para la deglución del paciente. Estos productos son fáciles de preparar y servir, por lo que su inclusión en las cocinas hospitalarias aporta grandes ventajas (AU)

Texture modified diets are among the most used in hospitals and nursing homes. These traditionally prepared diets may have a low nutritional value and particularly tend to have low energy and protein content. The continued use of these diets can lead to nutritional deficiencies and compromise the patient’s nutritional status Over the last decades, we have witnessed the evolution of technology and evolved and nowadays it is possible to find on the market industrial products with a complete nutritional value and a suitable texture for deglutition among inpatients. These products are easy to prepare and serve, so that their inclusion in the hospital kitchens provides great advantages (AU)

Prediction of acid lactic-bacteria growth in turkey ham processed by high hydrostatic pressure

High hydrostatic pressure (HHP) has been investigated and industrially applied to extend shelf life of meat-based products. Traditional ham packaged under microaerophilic conditions may sometimes present high lactic acid bacteria population during refrigerated storage, which limits shelf life due to development of unpleasant odor and greenish and sticky appearance. This study aimed at evaluating the shelf life of turkey ham pressurized at 400 MPa for 15 min and stored at 4, 8 and 12 ºC, in comparison to the non pressurized product. The lactic acid bacteria population up to 10(7) CFU/g of product was set as the criteria to determine the limiting shelf life According to such parameter the pressurized sample achieved a commercial viability within 75 days when stored at 4 ºC while the control lasted only 45 days. Predictive microbiology using Gompertz and Baranyi and Roberts models fitted well both for the pressurized and control samples. The results indicated that the high hydrostatic pressure treatment greatly increased the turkey ham commercial viability in comparison to the usual length, by slowing down the growth of microorganisms in the product.