Chromatic, Phenolic and Antioxidant Properties of Sorghum bicolor Genotypes

  • José Juan LÓPEZ-CONTRERAS Universidad Autónoma de Nuevo León, Facultad de Agronomía, Francisco Villa S/N, Col. Ex-Hacienda El Canadá, C.P. 66050, General Escobedo, Nuevo León (MX)
  • Francisco ZAVALA-GARCÍA Universidad Autónoma de Nuevo León, Facultad de Agronomía, Francisco Villa S/N, Col. Ex-Hacienda El Canadá, C.P. 66050, General Escobedo, Nuevo León (MX)
  • Vania URÍAS-ORONA Universidad Autónoma de Nuevo León, Facultad de Salud Pública y Nutrición, Av. Dr. Eduardo Aguirre Pequeño y Yuriria, C.P. 64460, Col. Mitras Centro, Monterrey, Nuevo León (MX)
  • Guillermo Cristian G. MARTÍNEZ-ÁVILA Universidad Autónoma de Nuevo León, Facultad de Agronomía, Francisco Villa S/N, Col. Ex-Hacienda El Canadá, C.P. 66050, General Escobedo, Nuevo León (MX)
  • Romeo ROJAS Universidad Autónoma de Nuevo León, Facultad de Agronomía, Francisco Villa S/N, Col. Ex-Hacienda El Canadá, C.P. 66050, General Escobedo, Nuevo León (MX)
  • Guillermo NIÑO-MEDINA Universidad Autónoma de Nuevo León, Facultad de Agronomía, Francisco Villa S/N, Col. Ex-Hacienda El Canadá, C.P. 66050, General Escobedo, Nuevo León (MX)
Keywords: ABTS; condensed tannins; DPPH; FRAP; total flavonoids; total phenolics; Sorghum bicolor

Abstract

Chromatic, phenolic and antioxidant properties were evaluated in ten sorghum genotypes grown in Nuevo León, México. Lightness, chroma and hue angle ranged from 64 to 83, 12 to 20 and 61 to 82 respectively, indicating that colour of the samples were located in the gray orange-yellow zone of the hue circle. Based on these results, samples were classified in three colour groups being Very Soft Orange, Slightly Desaturated Orange and Grayish Orange. Results in phenolics ranged from 796 to 15,949, 175 to 12,674 and 193 to 25,780 μgCE g-1 in total phenolics by Folin-Ciocalteu, total flavonoids by Aluminum Chloride and condensed tannins by Vanillin-HCl respectively. On the other hand, antioxidant capacity ranged from 1.20 to 93.83, 30.25 to 156.08 and 2.62 to 98.50 CmolTE g-1 in 2,2-diphenyl-1-picrylhydrazyl, 3-ethyl-benzothiazoline-6-sulfonic acid and Ferric Reducing Antioxidant Power respectively. Significant differences (pE0.05) were observed in statistical analysis for both individual and group colour samples in chromatic, phenolics and antioxidant activity evaluations, showing ‘Rox Orange’ genotype and Grayish Orange colour group the highest levels.

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Published
2015-12-10
How to Cite
LÓPEZ-CONTRERAS, J. J., ZAVALA-GARCÍA, F., URÍAS-ORONA, V., MARTÍNEZ-ÁVILA, G. C. G., ROJAS, R., & NIÑO-MEDINA, G. (2015). Chromatic, Phenolic and Antioxidant Properties of Sorghum bicolor Genotypes. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 43(2), 366-370. https://doi.org/10.15835/nbha4329949
Section
Research Articles
CITATION
DOI: 10.15835/nbha4329949