Bibliographic citations
Cristóbal, E., (2022). Obtención de frijol (Phaseolus vulgaris L.) precocido y preservado con recubrimiento de aceite esencial de Orégano (Origanum vulgare) [Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/5522
Cristóbal, E., Obtención de frijol (Phaseolus vulgaris L.) precocido y preservado con recubrimiento de aceite esencial de Orégano (Origanum vulgare) []. PE: Universidad Nacional Agraria La Molina; 2022. https://hdl.handle.net/20.500.12996/5522
@mastersthesis{renati/245141,
title = "Obtención de frijol (Phaseolus vulgaris L.) precocido y preservado con recubrimiento de aceite esencial de Orégano (Origanum vulgare)",
author = "Cristóbal de la Cruz, Evelyn Paula",
publisher = "Universidad Nacional Agraria La Molina",
year = "2022"
}
The common bean (Phaseolus vulgaris L.) represents the main source of low-cost protein in the human diet. It is considered one of the preferred legumes for its texture and flavor, but it is little included in the diet due to difficulty in preparation. This research work aimed to evaluate and model the hydration operation and the pre-cooking operation of three varieties of beans (Canario, Panamito and Castilla), subsequently, the beans were coated with a 0.33% solution of oregano essential oil for their physicochemical, microbiological and sensory evaluation during storage in refrigeration (4º C). The bean varieties were evaluated during 12 hours of soaking, which registered a maximum hydration value of 1,575 g/g dm for Castilla, 1,311g/g dm for Canario, and 1,224 g/g dm for Panamito, the moisture gain constant was also found where the less time was for Castilla beans, followed by Canario beans and Panamito. A pre-cooking was carried out in 10 min, 15 min and 20 min, and the behavior of the force-displacement curve was obtained and the equation of the effect of force in relation to precooking time, from which the maximum force that allowed to determine the precooking time in Castilla beans at 20 min (692.99 N), in Panamito beans at 20 min (445.66 N) and in Canario beans at 15 min (252.65 N). These chosen treatments were coated with the oregano essential oil solution and vacuum packed; then, they were stored at a temperature of 4°C, where the evaluation of the organoleptic characteristics and physicochemical parameters did not show significant differences in all the treatments. Regarding the microbiological evaluation, the incorporation of the essential oil of oregano presented a delay in the exponential growth of the mesophilic aerobes microorganisms, managing to increase the time twice that of the control, being a viable option for prepared foods where an average of fifteen days was maintained. in good microbiological condition.
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