Papers on mycobacteria in food, feed and water, published between 1945 and 2010 and indexed in the database Web of Science® (Thomson Reuters) were ranked according to authors, institutions, countries and source titles. The total number of papers on mycobacteria and food and mycobacteria and water were 1486 and 1419, respectively. More than 40% of papers have been published in the last five years. In addition to publications in peer reviewed journals the archives of ProMED-mail and the Rapid Alert System for Food and Feed of the European Union were also searched. It is evident that much attention is being paid to mycobacteria in food, feed and water as they likely pose a public health risk.

As the world has changed during the past 50 years, so has agriculture. And so has agricultural research, which continues to confront new challenges, from food security to ecological concerns to land use issues. Indeed, as Guy Paillotin, the former president of the French National Institute for Agricultural Research (INRA) has noted, agricultural research "has reached new heights in biology and is exploring other disciplines. It is forever changing, as are the needs of the society". The changing challenges faced by agricultural research were examined in depth at a conference organised by the OECD’s Co-operative Research Programme on Biological Resource Management for Sustainable Agricultural Systems, together with the Czech Republic’s Ministry of Agriculture. Participants came from all agricultural sectors and included farmers, industry, scientists and decision makers, as well as other stake holders.This publication presents the twenty papers delivered at the conference. They highlight recent major progress in agricultural research outcomes and address the challenges that lie ahead. | PR | IFPRI4 | EPTD

Papers on mycobacteria in food, feed and water, published between 1945 and 2010 and indexed in the database Web of Science (Thomson Reuters), were ranked according to authors, institutions, countries and source titles. The total number of papers on mycobacteria and food, and mycobacteria and water were 1,486 and 1,419, respectively. More than 40% of papers have been published in the last five years. In addition to publications in peer reviewed journals the archives of ProMED-mail and the Rapid Alert System for Food and Feed of the European Union were also searched. It is evident that much attention is being paid to mycobacteria in food, feed and water as they likely pose a public health risk.

PR | IFPRI4 | EPTD

This work is focused on the development of o/w salad dressing-type emulsions stabilized by tuna proteins. The influence of protein conservation methods after the extraction process (freezing or liofilization) on the rheological properties and microstructure of these emulsions was analyzed. Processing variables during emulsification were also evaluated. Stable emulsions with adequate rheological and microstructural characteristics were prepared using 70% oil and 0.50% tuna proteins. From the experimental results obtained, we may conclude that emulsion rheological properties are not significantly affected by the protein conservation method selected. On the contrary, an increase in homogenization speed favours an increase in the values of the linear viscoelastic functions. Less significant is the fact that as agitation speed increases further, mean droplet size steadily decreases.

The effect of orally supplemented melatonin (MT) at 1 mg/kg bw for 4 weeks on feeding behavior of non-diabetic and diabetic male Wistar rats has been studied by computerized meal pattern analysis. Exogenous MT has a satiating effect in non-diabetic rats, but not in diabetic animals. The changes in feeding behavior induced by MT in non-diabetic animals are related to changes in meal frequency, size and duration leading to lower total food intake during the scotophase. MT administration to diabetic rats resulted in lower drinking time and higher faecal output, without further behavioral effects. We conclude that the notorious metabolic changes ocurring in the streptozotocin-diabetic rat can overcome most of the underlying effects of MT supplementation. The possible MT usage for therapeutical purposes could benefit from the lack of behavioral alterations in diabetic animals.<br>Varias líneas de evidencia señalan a la melatonina (MT) como un importante factor en el complejo entramado de la regulación de la ingestión de alimento. Puesto que la secreción de MT aumenta en la rata con diabetes tipo I, y dada la importancia de MT en el tracto gastrointestinal, es interesante comprobar los efectos de MT sobre el alterado comportamiento ingestivo de estos animales. Se ha estudiado el efecto de la suplementación oral de MT (1 mg por kg de peso corporal y día) en la escotofase sobre el comportamiento ingestivo de ratas Wistar macho diabéticas y no diabéticas durante cuatro semanas mediante análisis de pautas de ingestión asistido por ordenador. La administración de MT exógena indujo un efecto de saciación en ratas no diabéticas, pero no en animales diabéticos. Los cambios en comportamiento ingestivo inducidos por MT en animales no diabéticos están relacionados con cambios en frecuencia, tamaño y duración de las comidas, con el resultado de una disminución de la ingestión total de alimento durante la escotofase. La administración de MT en ratas diabéticas originó una disminución del tiempo total de actividad dípsica y aumento de la masa fecal durante la escotofase, sin otros cambios comportamentales significativos. Se concluye que los notables cambios metabólicos que tienen lugar en la rata con diabetes experimental inducida por estreptozotocina provocan cambios comportamentales más potentes que los ejercidos por la suplementación oral con MT. El posible uso terapéutico de MT podría beneficiarse de la falta de alteraciones comportamentales en animales diabéticos.