Ciencia e Ingeniería en Alimentos y Biotecnología

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Author: search.filters.author.Cando Collaguazo, David AndrésSubject: search.filters.subject.ATMÓSFERAS MODIFICADAS

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    Evalución del efecto de la aplicación de atmósferas modificadas sobre la composición bioquímica de arazá (Eugenia stipitata Mc Vaugh)
    (Universidad Técnica de Ambato. Facultad de Ciencia e Ingeniería en Alimentos. Carrera de Ingeniería en Alimentos., 2018-03) Cando Collaguazo, David Andrés; Angós Iturgaiz, Ignacio Ángel
    The purpose of this work was to evaluate the effects of the application of modified atmospheres on the biochemical composition of the arazá at a temperature of 12 Celsius degrees for ten days of storage. The first phase of the study is to validate the methods for the quantification of bioactive compounds. The second phase evaluated the effect of the application of gaseous mixtures of low and high oxygen concentration on the bioactive components. The gas mixtures with low coffee concentration were: G1: 2.5 / 2.5; G2: 2.5 / 5; and mixtures of high oxygen concentration were G3: 80/10; G4: 80/20 and G5: 90/10 (percentage of O2 percentage of CO2), all analyzes were performed with their respective control samples corresponding to atmospheric air. The gaseous mixtures that helped to conserve the polyphenols were the G1 treatment with a relative difference of 103 percent with respect to its control air, in the same way the G2 treatment with 88.49 percent; respect to the flavonoids, characteristic, previously, conservation, with, a, greater, percentage, said, compounds, a, difference, of, its, air, air, control, with, a 66.64 percent, G1, and, 76,05 percent, G2. The mixture that showed a relative difference in carotenoid content and did not allow the development of pulp in the G2 treatment with -36.32 percent and for the analysis of carotenoids in the shell The treatment that showed a difference was the G5 with a 10.70 percent While to maintain chlorophyll, it was the G2 treatment that showed a relative difference of 34.99 percent.