Ciencia e Ingeniería en Alimentos y Biotecnología

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Author: search.filters.author.Chicaiza Paredes, Pedro AlejandroSubject: search.filters.subject.ATMÓSFERAS MODIFICADAS

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    Efecto de la aplicación de atmósferas modificadas en la composición de compuestos bioactivos del tomate de árbol (Solanum betaceum Cav.) variedad mora ecuatoriana
    (Universidad Técnica de Ambato. Facultad de Ciencia e Ingeniería en Alimentos. Carrera de Ingeniería Bioquímica, 2018-03) Chicaiza Paredes, Pedro Alejandro; Angós Iturgaiz, Ignacio Ángel
    In the present work was studied the influence of several modified atmospheres to preserve the bioactive components of tree tomato (Solanum betaceum Cav.) variety mora ecuatoriana, stored under refrigeration at 4 Celsius degrees during a period of 10 days. First, determination of the antioxidants present in the tree tomato pulp, considering total anthocyanins, total carotenoids, total flavonoids and total polyphenols was carried out. The second part consisted in analyzing the effect of the storage atmospheres on the bioactive content present in the fruit peel, which were total anthocyanins and total chlorophyll. The modified atmospheres used were: (percentage of O2: percentage of CO2): 2.5: 2.5; 2.5: 5.0; 80:10; 80:20 and 90:10. And analysis were carried out on days 1, 4, 7 and 10, in two storage chambers and each one in duplicate. When postharvest storage was considered, the best global results were obtained using the gas combination 80 percent O2 + 20 percent CO2. This treatment allowed to obtain an increase of 12 percent in the total flavonoid content and 11 percent less total chlorophyll content than in the control in the peel. Both results were beneficial due to the increased antioxidant capacity afforded by the flavonoids and the improvement of the external color of the fruit.