Resumen La percepción que presenta la población hacia una determinada amenaza permite comprender la postura de quienes han sido afectados por la materialización de un desastre, producto de la interrelación de amenazas y vulnerabilidades existentes en los territorios. El objetivo de la presente investigación es establecer si existe relación significativa entre las variables de los datos de estudios de amenaza de deslizamiento, inundación y microzonificación sísmica, así como, los estudios de la percepción y representación social del riesgo del cantón Portoviejo, la metodología empleada se basa en una revisión de información de fuentes bibliográficas, se aplicó la prueba chi cuadrado ya que los datos no presentaron una distribución normal. Como resultado se obtuvo que en la amenaza de sismo y deslizamiento existe una relación significativa; mientras que, en la amenaza de inundación, no existe relación significativa. Este tipo de análisis proporciona al gobierno local directrices para establecer estrategias de intervención correctiva y prospectiva de reducción de riesgos presentes y futuros, ya que contribuye al fortalecimiento de capacidades locales, potencializando la resiliencia territorial para mejorar sus mecanismos de prevención ante las amenazas existentes en el territorio.

Abstract The perception that the population presents towards a certain hazard allows us to understand the position of those who have been affected by the materialization of a disaster, as a result of the interrelation of hazard and vulnerabilities existing in the territories, The objective of this research is to establish if there is a significant relationship between the variables of the data from studies of landslide hazard, flooding and seismic microzoning, as well as studies of the perception and social representation of risk in the canton Portoviejo, the methodology used is based on a review of information from bibliographic sources, the chi-square test was applied since the data did not present a normal distribution. As a result, it was obtained that there is a significant relationship in the earthquake and landslide hazard; while, in the threat of flooding, there is no significant relationship. This type of analysis provides the local government with guidelines to establish strategies for corrective and prospective intervention to reduce present and future risks, since it contributes to the strengthening of local capacities, enhancing territorial resilience to improve its prevention mechanisms in the face of existing threats in the region.

The aim of this work was to identify and quantify the volatile compounds in five different commercial brands of charqui and longaniza sausages. Volatile compounds were extracted from some samples headspace using solid phase microextraction (SPME). The identification and quantification were made through the gas chromatography with a mass-selective detector (GS-MS). Fifty-four volatile compounds were identified in charqui samples and thirty-two volatile compounds in longaniza sausages. The chemical groups of the volatile compounds found in both the products were: aldehydes, alcohols, ketones, organic acids, furans, aromatic and aliphatic hydrocarbons. Significant differences were found (p<0.05) in the volatile compounds among the brands of longaniza and charqui. A characteristic volatile compounds profile was not found in the analyzed products. However, an important percentage of the volatile compounds in charqui came from the lipid oxidation. In the case of longanizas sausages, volatile compounds come mainly from the carbohydrates fermentation and spices.