Effect of Germination on the Physicochemical and Antinutritionnal Parameters of White Beans (Phaseolus vulgaris L.) Seeds Cultivated in Côte d'Ivoire
Jacques Mankambou Gnanwa
Laboratoire d’ Agrovalorisation de l’UFR Agroforesterie, Université Jean Lorougnon Guédé, BP 150 Daloa, Côte d’Ivoire.
Jean Bedel Fagbohoun
*
Laboratoire de Biochimie- Génétique, Université Peleforo Gon Coulibaly, Korhogo, BP 1328 Korhogo, Côte d’Ivoire.
Anon Attoh Hyacinthe
Laboratoire de Biochimie, Microbiologie et de Valorisation des Agro-Ressources, Institut Agropastoral, BP 1328 Korhogo, Côte d’Ivoire.
Edmond Dué Ahipo
Laboratoire de Biocatalyse et de Bioprocédés, Université Nanguy Abrogoua, Abidjan, Côte d’Ivoire, 02 BP 801 Abidjan 02, Côte d’Ivoire.
*Author to whom correspondence should be addressed.
Abstract
The objective of the present study was to evaluate some physicochemical and some antinutritional factors characteristics of sprouted seeds of white bean (Phaseolus vulgaris L.) with a view to their valorization in the Ivorian diet. The contents of dry matter, ash, reducing sugars, total sugars, fat, increased significantly under the effect of the germination of bean seeds. In addition, the mineral contents (Calcium, Magnesium, Iron, Sodium, Potassium) of sprouted bean samples are statistically different from those of ungerminated beans. Then, it was found that germination resulted in a significant increase in the contents of vitamins (A, B1, C, D and E). However, a significant decrease in the anti-nutritive compounds such alkaloid, oxalates, phytates and tannins was observed in the sprouted bean seeds. The mean values range from 45.00 ± 3.54 to 16.25 ± 1.28; from 68.29 ± 0.71 to 21.32 ± 0.18; from 81.72 ± 2.48 to 38.14 ± 1.76 and from 51.58 ± 0.26 to 19.35 ± 0.53 per cent respectively. Thus, germination is an effective processing method for increasing vitamins and mineral bioavailability, and for reducing significantly anti-nutritve compounds after the bean seeds germinate.
Keywords: Germination, Phaseolus vulgaris L, physicochemical, antinutritional parameters