Consumer testing of eba in rural and urban areas in Nigeria. Understanding the drivers of trait preferences and the development of multi-user RTB product profiles, WP1, Step 4

Madu Tessy, Okoye Benjamin, Ukeje Blessing, Onyemauwa Nnaemeka, Ofoeze Miriam, Fliedel Geneviève, Adinsi Laurent, Bechoff Aurélie. 2022. Consumer testing of eba in rural and urban areas in Nigeria. Understanding the drivers of trait preferences and the development of multi-user RTB product profiles, WP1, Step 4. Umudike : RTBfoods Project-CIRAD, 17 p.

Résumé : Consumer testing of Eba was conducted in rural and urban areas of Imo state in South-East Nigeria using hedonic, Just-About-Right (JAR) and CATA tests. A majority (69.3%) of the consumers interviewed (n=150) were women and only a third (30.7%) were men. Four Eba products were made from varieties with different quality characteristics during the Activity 4 “Processing diagnosis”, and were tested with consumers in Activity 5. The Eba products were processed from the following cultivars: improved varieties: TMS 01/1368, TMS 01/1412, TMS 98/0505 and local: Nwaocha. The most liked Eba samples were TMS 98/0505 with a mean overall liking score of 6.1 followed by Nwaocha and TMS 01/1412 with a medium score close to 5, 'neither like nor dislike' (5.4 and 4.8, respectively). The least liked was TMS 01/1368 sample with a mean overall liking score of 2.1 ('dislike very much'). TMS 01/1412 and 01/1368 were from recently developed biofortified yellow cassava varieties while Nwaocha and TMS 98/0505 were from white cassava varieties. The Agglomerative Hierarchical Clustering analysis of the mean overall liking scores identified three groups of consumers. No variety fulfilled the hedonic acceptability expectations for all groups of consumers (this means that there were no cluster of 'all likers') while TMS 01/1368 was scored lower than 3 for all groups of consumers. The graphic representation of sensory characteristics on PCA plan highlighted the high quality characteristics of eba in Y axis, while the poor quality characteristics were reported in X axis. The most liked Eba samples (TMS 98/0505 and Nwocha) were associated to the hig quality characteristics such as 'good aroma', 'yellow', 'stretchy', 'smooth', 'not mouldable', 'sour' but also 'fibre/dirt/particles'. An important observation was that the smoothness of the four eba samples evaluated was considered JAR by only 31.3 to 39.2% of consumers and could explain the low score i.e. 6.1 (like slightly) given to the highest quality Eba sample. Lack of smoothness and lumps in the product may highlight that the eba samples may not have been processed from gari in an optimal manner (i.e. inadequate water temperature, water amount, stirring time…).

Mots-clés libres : Cassava, Eba, Hedonic testing, Check-All-That-Apply analysis, Consumer liking, Consumption habits, Just-About-Right analysis, Sensory quality characteristics

Agences de financement hors UE : Bill and Melinda Gates Foundation, Centre de Coopération Internationale en Recherche Agronomique pour le Développement, Centro Internacional de Agricultura Tropical, Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, James Hutton Institute

Projets sur financement : (FRA) Breeding RTB Products for End User Preferences

Auteurs et affiliations

• Madu Tessy, NRCRI (NGA)
• Okoye Benjamin, NRCRI (NGA)
• Ukeje Blessing, NRCRI (NGA)
• Onyemauwa Nnaemeka, NRCRI (NGA)
• Ofoeze Miriam, NRCRI (NGA)

Contributeurs et affiliations

• Fliedel Geneviève, CIRAD-PERSYST-UMR Qualisud (FRA) - collaborateur
• Adinsi Laurent, UAC (BEN) - collaborateur
• Bechoff Aurélie, NRI (GBR) - collaborateur

Source : Cirad-Agritrop (https://agritrop.cirad.fr/602092/)

Métriques

[ Page générée et mise en cache le 2023-04-19 ]