Bibliographic citations
Espinoza, J., (2017). Efecto del tratamiento térmico sobre el color y el contenido de carotenoides totales en salsas de ajíes (Capsicum spp) nativos [Tesis, Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/3007
Espinoza, J., Efecto del tratamiento térmico sobre el color y el contenido de carotenoides totales en salsas de ajíes (Capsicum spp) nativos [Tesis]. : Universidad Nacional Agraria La Molina; 2017. https://hdl.handle.net/20.500.12996/3007
@misc{renati/246154,
title = "Efecto del tratamiento térmico sobre el color y el contenido de carotenoides totales en salsas de ajíes (Capsicum spp) nativos",
author = "Espinoza Orihuela, Javier Ernesto",
publisher = "Universidad Nacional Agraria La Molina",
year = "2017"
}
The present study had as its main objectives, to characterize 20 accessions of native chilies, in color and total carotenoids content as well as to assess the effect of heat treatment (pasteurization) in physicochemical characteristics in three pepper sauces. Assessment of color (L*, a* and b*) was performed using a colorimeter, whereas the assessment of total carotenoids (mg carotene / 100g of pulp) was performed by spectrophotometry. The Panca accession (brown) showed the lowest values in color, while yellow accessions showed the highest values of Lightness (L*). The range of total carotenoids determined was within 2,68 to 230,72 mg carotene / 100 g of pulp, in which the highest value corresponded to the Panca accession and the lowest value to the yellow accessions. Selected accessions were Chico (red), Miscucho Amarillo (yellow) and Miscucho Naranja (orange color). Three treatments were applied in the thermal process: T0 (unpasteurized), T1 (90 °C) and T2 (100 °C). There were significant differences between unpasteurized and pasteurized sauces, however color and total carotenoids content were significantly the same at 90 °C and 100 ºC. Moreover, blanching as pre-treatment caused a greater effect on the variables studied. The greatest effect of heat treatment on total carotenoids, was in Chico chili sauce, with a decrease of 28,25 percent and 30,03 percent, respectively. Carotenoids content was unaffected throughout the process in the case of the Miscucho Amarillo, due to its low content. The greatest value of brightness L* (Miscucho Amarillo) decreased by 14 percent, the highest value of reddish a * (Chico) decreased by 14,64 percent and the highest value of yellowish b* (Miscucho Amarillo) decreased 24,20 percent.
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