Estimation of diffusion coefficients during carrots cooking in arsenious solution at different temperatures.

This study is based on an investigation of the transport phenomenon, specifically the quantification of arsenic diffusion in carrots within a temperature range of 89 °C-99 °C using a thin plate model. Studying the diffusion of arsenic in carrots is important due to its toxicity, as it can concentrate during cooking. The World Health Organization considers arsenic as one of the ten chemical substances of public health concern. In this study, biennial hybrid carrots of the Nantesa variety were cooked whole with their epidermis in an aqueous solution containing diarsenic trioxide with an As concentration of 5 mgL-1 at 89 °C, 94 °C, and 99 °C. The cooking times of the carrots at different temperatures were based on a specific degree of tenderness, with a value of ≤3 kg m-2. The evaluated data showed consistency with increasing temperature. The calculated effective diffusion coefficients at temperatures of 89 °C, 94 °C, and 99 °C were 5.84E-09 m2s-1, 1.08E-08 m2s-1, and 2.51E-08 m2s-1 for the flesh (DL), and 1.601E-11 m2s-1, 2.15E-11 m2s-1, and 4.39E-11 m2s-1 for the epidermis (DE), respectively. The activation energy for diffusion was determined to be 159.54 kJmol-1 for the and 110.68 kJmol-1 for the epidermis. Similar behaviours were observed in different radial positions of the carrot, where the arsenic content decreased from the periphery to the centre, consistent with studies on diffusion phenomena with other solutes in food. The novelty was the detailed quantification of arsenic diffusion in the Nantes-type hybrid carrot matrix. This study is limited to a specific concentration of 5 mgL-1 of arsenic solution. The findings of this study may have significant implications for public health and food safety.

Mathematical modelling of mass transfer phenomena for sucrose and lactitol molecules during osmotic dehydration of cherries.

The diffusion phenomena of sucrose and lactitol in cherries using different proportions during osmotic dehydration was quantified by means of a mathematical model based on Fick's second law. The average effective diffusion coefficient for soluble solids in skin and flesh are 5.37 10-11 m2∕s and 1.24 10-10 m2∕s. Whereas, for water in skin and flesh are 9.27 10-09 m2∕s and 5.48 10-08 m2∕s. A significant difference for water diffusion coefficients (p < 0.05) was observed between the treatments. This could indicate that the diffusion between species and treatments is differential. Effective diffusion coefficients for water in skin and flesh are 2 orders of magnitude greater than effective diffusion coefficients for soluble solids. This is probably due to its lesser molecular weight. Furthermore, the effective diffusion coefficients for water and soluble solids in cherry skin are between 1 and 2 orders of magnitude lower than effective diffusion coefficients for both in cherry flesh, possibly due to the barrier effect exerted by the cherry skin.

Guía de atención integral para la detección temprana y diagnóstico del episodio depresivo y trastorno depresivo recurrente en adultos. Atención integral de los adultos con diagnóstico de episodio depresivo o trastorno depresivo recurrente Parte II: Aspectos generales del tratamiento, manejo de la fase aguda, continuación y mantenimiento del paciente con diagnóstico de depresión / Guide for Early Detection and Diagnosis of Depressive Episodes and Recurrent Depressive Disorder in Adults. Integral Attention of Adults with a Diagnosis of Depressive Episodes and Recurrent Depressive DisorderPart II: General Aspects of Treatment, Management of the Acute Phase, Continuation and Maintenance of Patients with a Depression Diagnosis. Integral Care

Introducción: El presente artículo busca presentar las recomendaciones basadas en la evidencia que surgieron como respuesta a una serie de preguntas clínicas respecto al episodio depresivo y al trastorno depresivo recurrente, haciendo hincapié en los aspectos generales de tratamiento, el tratamiento en la fase aguda y el manejo de la fase de continuación/mantenimiento, con el fin de brindar parámetros de atención en salud basados en la mejor y más actualizada evidencia disponible para lograr los estándares mínimos de calidad en el abordaje de adultos con dichos diagnósticos. Método: Se elaboró una guía de práctica clínica bajo los lineamientos de la Guía Metodológica del Ministerio de la Protección Social. Se adaptaron las recomendaciones de las guías NICE90 y CANMAT para las preguntas que estas guías contestaban y se desarrollaron de novo para las preguntas no encontradas. Resultados: Se presentan las recomendaciones 5-22 correspondientes al manejo de la depresión...

Introduction: This article presents recommendations based on evidence gathered to answer a series of clinical questions concerning the depressive episode and the recurrent depressive disorder, with emphasis on general treatment aspects, treatment in the acute phase and management of the continuation/maintenance, all intended to grant health care parameters based on the best and more updated available evidence for achieving minimum quality standards with adult patients thus diagnosed. Methodology: A practical clinical guide was elaborated according to standards of the Methodological Guide of the Ministry of Social Protection. Recommendation from NICE90 and CANMAT guides were adopted and updated so as to answer the questions posed while de novo questions were developed. Results: Recommendations 5-22 corresponding to management of depression are presented...

[Integral Care Guide for Early Detection and Diagnosis of Depressive Episodes and Recurrent Depressive Disorder in Adults. Integral Attention of Adults with a Diagnosis of Depressive Episodes and Recurrent Depressive Disorder: Part II: General Aspects of Treatment, Management of the Acute Phase, Continuation and Maintenance of Patients with a Depression Diagnosis]. / Guía de atención integral para la detección temprana y diagnóstico del episodio depresivo y trastorno depresivo recurrente en adultos. Atención integral de los adultos con diagnóstico de episodio depresivo o trastorno depresivo recurrente: Parte II: Aspectos generales del tratamiento, manejo de la fase aguda, continuación y mantenimiento del paciente con diagnóstico de depresión.

INTRODUCTION: This article presents recommendations based on evidence gathered to answer a series of clinical questions concerning the depressive episode and the recurrent depressive disorder, with emphasis on general treatment aspects, treatment in the acute phase and management of the continuation/maintenance, all intended to grant health care parameters based on the best and more updated available evidence for achieving minimum quality standards with adult patients thus diagnosed. METHODOLOGY: A practical clinical guide was elaborated according to standards of the Methodological Guide of the Ministry of Social Protection. Recommendation from NICE90 and CANMAT guides were adopted and updated so as to answer the questions posed while de novo questions were developed. RESULTS: Recommendations 5-22 corresponding to management of depression are presented.