Author(s)

Rachelle Noumpao Hortense Bougoussaré¹, Marius Kounbesioune Somda^1,2*, Rasmata Dabo³, Donatien Kabore³, Mamoudou Hama Dicko¹

¹Laboratoire de Biochimie, Biotechnologie, Technologie Alimentaire et Nutrition (LABIOTAN), Université Joseph KI-ZERBO, Ouagadougou, Burkina Faso.
²Laboratoire de Microbiologie et de Biotechnologies Microbiennes (LAMBM), Université Joseph KI-ZERBO, Ouagadougou, Burkina Faso.
³Département Technologies Alimentaires, Institut de Recherche en sciences appliquées et des technologies (IRSAT), Centre National de Recherche Scientifique et Technologique, Ouagadougou, Burkina Faso.

Polygala multiflora Poiret is an oleaginous plant in Burkina Faso, but most of its quality characteristics remain unexplored. This work aimed to evaluate the chemical and sensory quality of Polygala multiflora Poiret crude oil. Chemical parameters were determined using AOAC standards. The sensory analysis of the samples was carried out using three tests (descriptive and hedonic classification). Principal component analysis (PCA) was used to establish the relationship between the panelists’ evaluation of the attributes and the type of oil extracted. The results showed that P. multiflora seed oil is mainly produced by women using a mechanical extraction process. The chemical analysis of the extracted oil showed a refractive index (1.45 ± 0.02), free fatty acids (1.97% ± 0.2% ac. oleic), acidity index (6.93 ± 0.14 mg KOH/g), saponification index (186.3 ± 9.31 mg KOH/g), iodine index (40.37 ± 0.5 gI2/100 g) and peroxide index (1.58 ± 0.05 Meq O₂/kg). The descriptive sensory attributes showed that the crushed seed oil had the highest appreciation percentage value. The hedonic test showed that the highest percentage value of the attribute “like it” was associated with whole seed oil. The results of the Principal Component Analysis (PCA) showed the variability of the sensory quality depending on the type of oil extracted.

P. Multiflora, Seeds Oil, Chemical Properties, Sensory Profile, Burkina Faso

Bougoussaré, R. , Somda, M. , Dabo, R. , Kabore, D. and Dicko, M. (2025) Assessment, Quality and Sensory Evaluation of Crude Oil of Polygala multiflora Poiret in Burkina Faso. Food and Nutrition Sciences, 16, 163-186. doi: 10.4236/fns.2025.162010.