Journal of
Plant Breeding and Crop Science

  • Abbreviation: J. Plant Breed. Crop Sci.
  • Language: English
  • ISSN: 2006-9758
  • DOI: 10.5897/JPBCS
  • Start Year: 2009
  • Published Articles: 432

Full Length Research Paper

Nutritional and phytochemical characterization of taro [Colocasia esculenta (L.) Schott] germplasm from Burkina Faso

Nicolas Ouédraogo
  • Nicolas Ouédraogo
  • Laboratoire Biosciences, Université Joseph KI-ZERBO, Ouagadougou, Burkina Faso.
  • Google Scholar
Pierre Alexandre Eric Djifaby Sombié
  • Pierre Alexandre Eric Djifaby Sombié
  • Laboratoire Biosciences, Université Joseph KI-ZERBO, Ouagadougou, Burkina Faso.
  • Google Scholar
Renan Ernest Traoré
  • Renan Ernest Traoré
  • Laboratoire Biosciences, Université Joseph KI-ZERBO, Ouagadougou, Burkina Faso.
  • Google Scholar
Hemayoro Sama
  • Hemayoro Sama
  • Laboratoire Biosciences, Université Joseph KI-ZERBO, Ouagadougou, Burkina Faso.
  • Google Scholar
Pauline Bationo/Kando
  • Pauline Bationo/Kando
  • Laboratoire Biosciences, Université Joseph KI-ZERBO, Ouagadougou, Burkina Faso.
  • Google Scholar
Mahamadou Sawadogo
  • Mahamadou Sawadogo
  • Laboratoire Biosciences, Université Joseph KI-ZERBO, Ouagadougou, Burkina Faso.
  • Google Scholar
Vincent Lebot
  • Vincent Lebot
  • Laboratoire Biosciences, Université Joseph KI-ZERBO, Ouagadougou, Burkina Faso.
  • Google Scholar


  •  Received: 07 July 2022
  •  Accepted: 15 September 2022
  •  Published: 31 January 2023

Abstract

Taro (Colocasia esculenta (L.) Schott) is a food crop mainly produced for its nutrient-rich corms. This study aims to characterize the nutritional and antioxidant potential of fifty-nine genotypes of taro to identify the most interesting chemotypes. The traits evaluated were: starch, proteins, soluble sugars, total phenolics, flavonoids, and antioxidant capacity, assessed by Ferric reducing antioxidant power (FRAP) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) methods. Results indicate that taro corms are a good source of nutritional and bioactive compounds. Also, significant variations were recorded between genotypes for the different parameters evaluated. Total phenolics content varied from 4.37± 0.02 to 115.21 ± 8.24 mg GAE/100 g dw, flavonoids from 0.25 ± 0 to 1.47 ± 0.07 mg quercetin equivalent (QE)/100 g dw, starch content from 0.31 ± 0.17 to 17.56 ± 0.27 mg/100 mg dw, proteins from 0.03 ± 0.03 to 0.80 ± 0.02 mg/100 mg dw and soluble sugars from 0.02 ± 0 to 8.10 ± 0.38 mg/100 mg dw. Antioxidant activities ranged from 39.20 ± 1.74 to 98.67 ± 1.62% for the ability to reduce DPPH and from 0.06 ± 0.03 to 12.16 ± 0.72 mg AAE/100 g dw for the ability to reduce iron (FRAP). These variations have allowed us to distinguish four chemotypes.

Key words: Colocasia esculenta, taro, nutritional compounds, bioactive compounds, breeding, Burkina Faso.