Por favor, use este identificador para citar o enlazar este ítem:
http://dspace.udla.edu.ec/handle/33000/10635| Tipo de material : | bachelorThesis |
| Título : | Análisis de peligros y puntos críticos (APPCC) de agentes biológicos a la producción de hortalizas en el Distrito Metropolitano de Quito |
| Autor : | Panchi Guachamin, Erika Estefania |
| Tutor : | Guerrero Latorre, Laura |
| Palabras clave : | TIERRAS AGRÍCOLAS;HORTALIZAS;QUÍMICA DE ALIMENTOS;QUITO-ECUADOR |
| Fecha de publicación : | 2018 |
| Editorial : | Quito: Universidad de las Américas, 2018 |
| Citación : | Panchi Guachamin, E. E. (2018). Análisis de peligros y puntos críticos (APPCC) de agentes biológicos a la producción de hortalizas en el Distrito Metropolitano de Quito (Tesis de pregrado). Universidad de las Américas, Quito. |
| Resumen : | El análisis de peligros y puntos críticos de control “APPCC” es un informe que promueve la seguridad alimenticia mediante la identificación de riesgos en las etapas de procesado... |
| Descripción : | The analysis of hazards and critical control points (HACCP) is a report that promotes food safety by identifying risks in the stages of processing. Within the Metropolitan District of Quito the agricultural development of vegetables is favored due to the environmental advantages. In spite of this, the urban growth and the dispossession of water served in rivers used for agriculture puts at risk the health of the food and therefore of the consumer. The objective of this study is to identify, through the HACCP system, critical points necessary to improve safety in the vegetable production chain in the DMQ. The study focused on three stages of production: irrigation water (Pisque, La Merced and Santa Martha), garden food (lettuce, pepper, strawberry and tomato) and market (Mayorista, San Roque and La Ofelia). For the water analysis, 100ml of water was collected from each channel mentioned, after Escherichia coli was quantified by means of the membrane filtration technique and for the food analysis was carried out in a PBS wash. All the samples were cultivated in selective agar medium (Chromocult ®) and incubated for 18 - 24 hours. The results obtained showed that the three irrigation channels exceeded the quality regulation (E. coli <1000 cfu / 100ml), where the largest amount of E. coli is in the Pisque channel with 12433.3 cfu / 100ml of E. coli. On the other hand, the analysis of vegetables and fruits in orchards resulted in high E. coli values in strawberry and lettuce 0.93 (cfu / g) ) and 0.70 (cfu / g) respectively. These did not surpass the norms established for lettuce (10 - 10 2 of E. coli ufc / g) and, tomato, strawberry and pepper (10 2 -10 3 E. coli ufc / g). In markets the highest value was in lettuce with 5.67 E. coli cfu / g but it does not exceed the regulations. In conclusion, the study carried out along the entire chain in the DMQ reveals the need of using treatments for contaminated irrigation water. |
| URI : | http://dspace.udla.edu.ec/handle/33000/10635 |
| Aparece en las colecciones: | Ingeniería en Biotecnología |
Ficheros en este ítem:
| Fichero | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| UDLA-EC-TIB-2018-37.pdf | 2,18 MB | Adobe PDF | Visualizar/Abrir |
Este ítem está sujeto a una licencia Creative Commons Licencia Creative Commons
