Active packaging for fresh food based on the release of carvacrol and thymol

Active packaging is becoming an emerging food technology to improve quality and safety of food products. One of the most common approaches is based on the release of antioxidant/antimicrobial compounds from the packaging material. In this work an antifungal active packaging system based on the release of carvacrol and thymol was optimized to increase the post-harvest shelf life of fresh strawberries and bread during storage. Thermal properties of the developed packaging material were determined by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Volatile compounds in food samples contained in active packaging systems were monitored by using headspace solid phase microextraction followed by gas chromatography analysis (HS-SPME-GC-MS) at controlled conditions. The obtained results provided evidences that exposure to carvacrol and thymol is an effective way to enlarge the quality of strawberries and bread samples during distribution and sale.

Carvacrol and thymol for fresh food packaging

Active packaging is becoming an emerging food technology to improve quality and safety of food products. One of the most common approaches is based on the release of antioxidant/antimicrobial compounds from the packaging material. In this work an antifungal active packaging system based on the release of carvacrol and thymol was optimized to increase the post-harvest shelf life of fresh strawberries and bread during storage. Thermal properties of the developed packaging material were determined by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Volatile compounds in food samples contained in active packaging systems were monitored by using headspace solid phase microextraction followed by gas chromatography analysis (HS-SPMEGC-MS) at controlled conditions. The obtained results provided evidences that exposure to carvacrol and thymol is an effective way to enlarge the quality of strawberries and bread samples during distribution and sale.

Comportamiento y salud en la vejez

Determinados comportamientos pueden ser factores protectores y promotores de salud, o actuar como variables de riesgo de mortalidad prematura, de morbilidad y de discapacidad funcional. Frente a las enfermedades ligadas a la cronología, el comportamiento pasaría a constituir una variable crucial de las enfermedades de biografía. En este artículo se presenta una sucinta revisión de trabajos epidemiológicos que han analizado la relación comportamiento y salud en gerontología. Se presenta también una breve síntesis en relación al estado actual de algunos comportamientos de elección personal implicados en la salud del anciano o de interés para un envejecimiento satisfactorio: fumar, alcohol, ejercicio físico, comportamiento alimentario, hábitos de sueño, y sexo seguro. Finalmente, se sugieren algunas implicaciones prácticas de la revisión, destacando la necesidad de incorporar a las personas de edad en los programas de promoción de comportamientos de salud y de prevención de enfermedad, y de valorar la evidencia científica disponible ala hora de aconsejar cambios en determinados comportamientos de riesgo, sobre todo en aquellos ancianos sin problemas de salud para los que ciertos comportamientos se asocian a un hedonismo ponderado y a disfrute de la vida.

The impact of the internet on the pricing strategies of the European low cost airlines

This study seeks to analyse the price determination of low cost airlines in Europe and the effect that Internet has on this strategy. The outcomes obtained reveal that both users and companies benefit from the use of ICTs in the purchase and sale of airline tickets: the Internet allows consumers to increase their bargaining power comparing different airlines and choosing the most competitive flight, while companies can easily check the behaviour of users to adapt their pricing strategies using internal information. More than 2500 flights of the largest European low cost airlines have been used to carry out the study. The study revealed that the most significant variables for understanding pricing strategies were the number of rivals, the behaviour of the demand and the associated costs. The results indicated that consumers should buy their tickets before 25 days prior to departure.

Los bienes raíces de los moriscos expulsados

La expulsión de los moriscos fue un proceso complejo, a pesar de los innumerables trabajos que se han realizado hasta el día de hoy aún quedan aspectos por dilucidar. La confiscación y venta de los bienes raíces de los moriscos generó una inmensa documentación, cuyo estudio nos puede ayudar a comprender la vertiente económica de la expulsión, así como aspectos socioeconómicos de la minoría. En este artículo se presentan los primeros datos globales sobre la tasación de todos los bienes raíces de los moriscos en Castilla, Extremadura, Murcia y Andalucía, tanto en lugares de realengo como en lugares de señorío.