Antioxidant components and nutritional quality of 15 genotypes of Xoconostle (Opuntia spp.)

Abstract

This study determined nutritional quality, content of antioxidant compounds and antioxidantactivity in the rind (mesocarp) of the fruit of 15 genotypes of xoconostle to identify those thathave greater nutraceutical potential. A proximal analysis was conducted. Contents ofbetalain, total phenolic compounds, flavonoids, ascorbic acid and antioxidant activity werequantified. The data obtained were analyzed with an analysis of variance (ANOVA), theTukey test (P ? 0.05) and the Pearson coefficient of correlation. Significant differences in theproximal composition and antioxidant compounds were found among the 15 genotypes. Thegenotype Cambray had the highest total content of betalains (35.06 mg 100 g-1 f.w.). Theantioxidant activity observed in the other genotypes may be due to a synergetic effect of thepresence of total betalains, phenolic compounds, flavonoids and vitamin C. The wildgenotype Chaveñito (O. sainaltense), which had the highest percentage (95.88 %) ofinhibition of the DPPH radical (indicating greater antioxidant activity), can be considered thegenotype with the best nutraceutic quality.

A study on biochemical properties of different parts of three Opuntia species (Opuntia ficus-indica, O. microdasys, and O. basilaris)

“…Furthermore, vitamin C content of stems of O. ficus-indica and O. basilaris was relatively higher than that of their fruits, though the difference was not statistically significant. Significant differences in betalain content, phenolic compounds, flavonoids, and vitamin C were found among the 15 xoconostle genotypes (Martínez et al 2015).…”

El fruto de Opuntia oligacantha var. Ulapa, fuente potencial de fitoquímicos

“…Referente a los contenidos de fenoles totales (CFT) (Tabla 2) fueron menores a lo reportado porGuzmán-Maldonado et al (2010); donde estas variaciones pueden deberse al tiempo de madurez del producto, zona geográfica de recolección y situaciones de estrés de la planta. Respecto a los flavonoides totales (CFvT) (Tabla 2), el contenido fue mayor a lo reportado porLópez-Martínez et al (2015) en genotipos diferentes de xoconostle. De acuerdo aLemos et al (2017) los valores del contenido total de fenoles y flavonoides pueden variar entre especies y dentro de las especies; donde los factores que intervienen en las diferencias del género Opuntia spp., son la variabilidad genética y las condiciones edafoclimáticas.…”