Citas bibligráficas
Ramón, F., (2017). Efecto del estrés abiótico post-cosecha en las características físico-químicas y de algunos metabolitos primarios de mashua morada (Tropaeolum tuberosum Ruíz & Pavón) [Tesis, Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/3009
Ramón, F., Efecto del estrés abiótico post-cosecha en las características físico-químicas y de algunos metabolitos primarios de mashua morada (Tropaeolum tuberosum Ruíz & Pavón) [Tesis]. : Universidad Nacional Agraria La Molina; 2017. https://hdl.handle.net/20.500.12996/3009
@misc{renati/243045,
title = "Efecto del estrés abiótico post-cosecha en las características físico-químicas y de algunos metabolitos primarios de mashua morada (Tropaeolum tuberosum Ruíz & Pavón)",
author = "Ramón Ccana, Fiorella Consuelo",
publisher = "Universidad Nacional Agraria La Molina",
year = "2017"
}
The objective of this study was to evaluate the effect of three types of post-harvest abioticstress on the physicochemical characteristics (pH, acidity, color, minerals, dietary fiber andstarch) and the content of primary metabolites (sugar and organic acids) in samples ofmashua. For this, the mashua tubers after harvesting were exposed to three abiotic stresses,refrigeration, shade and sunny, for a period of fifteen days; in all cases, samples were takenperiodically in order to carry out the respective analyzes. The freshly harvested mashuapresented values of 10.8, 46.2, 7.2, 8.4, 2.2 and 0.72 g/100g dry matter (DM), for total dietaryfiber, starch, fructose (F), glucose (G), sucrose and quinic acid, respectively; and 2.7 mg/gDM of L-ascorbic acid. The results show that the application of post-harvest abiotic stressesaffect the physical-chemical characteristics and the content of primary metabolites inmashua. The sunny causes the loss of the purple hue; the reduction of acidity, the content ofstarch, oxalic acid and L-ascorbic acid; while insoluble dietary fiber (IDF), G, S, quinic,succinic and formic acids increase. Refrigerated storage resulted in an increase in solubledietary fiber content, G, F, S and quinic acid; a decrease in starch content; while color andL-ascorbic acid din not show significant variations. Finally, storage in shade caused adecrease in acidity and starch content, an increase in IDF; while the color and content ofprimary metabolites did not show noticeable changes.
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