1Biosciences Laboratory, Joseph KI-ZERBO University, Ouagadougou, Burkina Faso.
2Institute of Environment and Agricultural Research (INERA), Ouagadougou, Burkina Faso.
3Institute of Environment and Agricultural Research/Farako-Ba (INERA/Farako-Ba), Bobo-Dioulasso, Burkina Faso.
4Laboratory of Biochemistry and Chemistry Applied (LABIOCA), Joseph KI-ZERBO University, Ouagadougou, Burkina Faso.
5Laboratory of Biochemistry, Biotechnology, Food Technology and Nutrition, Joseph KI-ZERBO University, Ouagadougou, Burkina Faso.
6West Africa Centre for Crop Improvement, School of Agriculture, University of Ghana, Legon, Ghana.
*Corresponding Author: Mamadou Tondé, Biosciences Laboratory, Joseph KI-ZERBO University, Ouagadougou, Burkina Faso. Email: mamadoutonde@gmail.com
The soybean crop plays a crucial role in Burkina Faso’s agricultural sector and contributes significantly to food security and nutrition. The study aimed to evaluate the nutritional composition and antioxidant potential of soybean cultivated in Burkina Faso.
A total of 40 soybean varieties cultivated in 2022 at two sites in Burkina Faso were analyzed using standard methods for six parameters, including total phenolic, total flavonoid, total protein, soluble sugars, phytic acid, DPPH radical scavenging activity and ferric reducing antioxidant power (FRAP). Total phenolic ranged from 1.769 to 2.923 μg GAE/100 mg, total flavonoid from 0.008 to 0.031 μg QE/100 mg, total protein from 1.526 to 2.021 mg/100 mg, soluble sugar from 107.6 to 228.1 μg GE/100 mg and phytic acid concentration from 130.9 to 378.0 μg APE/100 mg. Antioxidant activity varied from 0.786 to 2.282 μg AAE/100 mg for DPPH and from 0.019 to 0.079 μg AAE/100 mg dw for FRAP.
Four soybean varieties, GPV12, GPV17, GPV22 and GMV19 are characterized by high nutrient content, particularly total protein and soluble sugars. The GPV3, GPV6 and GPV8 lines are distinguished by their high concentration of bioactive compounds, such as total phenolic compounds and total flavonoids. In contrast, the GPV4 and GPV5 varieties have relatively high levels of antinutrients. The varieties with high nutritional potential could help strengthen the resilience of poor households against food insecurity in Sub-Saharan Africa.
Burkina faso, Glycine max, Nutrients, Phytochemicals compounds