Standard operating procedure for determination of extensibility of pounded yam using Kieffer dough extensibility method

Adinsi Laurent, Diby Sylvie Nnan, Bouniol Alexandre, Hotegni Francis, Deffan Prudence, Domingo Romain, Honfozo Laurenda, Adesokan Michael, Alamu Ayomide, Chijioke Ugo, Otegbayo Bolanle, Arufe Santiago, Akissoé Noël, Mestres Christian, Dufour Dominique, Ayetigbo Oluwatoyin. 2024. Standard operating procedure for determination of extensibility of pounded yam using Kieffer dough extensibility method. Cotonou : RTB Breeding Project-CIRAD, 20 p.

Résumé : This SOP describes the procedure for determining the extensibility of pounded yam using the Kieffer dough extensibility method. The SOP also reviews the procedure for preparation of pounded yam by adjusting the dry matter of the pounded yam to 30% during pounding. The SOP reviewed the existing method of preparing pounded yam from Dioscorea rotundata and Dioscorea alata genotypes mechanically by modifying the method through adjusting the dry matter of the pounded yam to 30% in order to determine the amount of water to be added during pounding. Results showed that the extensibility and area under extension curve were the most discriminant textural parameters while extensogram peak force was the least discriminant textural parameter. The method was able to differentiate between the extensibility of D. alata genotypes and D. rotundata genotypes. The precautions required to conduct the procedure correctly and the statistical recommendations of minimum number of observations to be conducted are given.

Mots-clés libres : Pounded yam, Dry matter, Extensibility, Discriminant, Texture

Agences de financement hors UE : Centro Internacional de la Papa, Centre de Coopération Internationale en Recherche Agronomique pour le Développement, Bill and Melinda Gates Foundation

Projets sur financement : (FRA) RTB Breeding

Auteurs et affiliations

• Adinsi Laurent, UAC (BEN)
• Diby Sylvie Nnan, CNRA (CIV)
• Bouniol Alexandre, CIRAD-PERSYST-UMR Qualisud (CIV) ORCID: 0000-0002-6140-424X
• Hotegni Francis, UAC (BEN)
• Deffan Prudence, CNRA (CIV)
• Domingo Romain, CIRAD-PERSYST-UMR Qualisud (FRA) ORCID: 0000-0002-6372-4925
• Honfozo Laurenda, UAC (BEN)
• Adesokan Michael, IITA (NGA)
• Alamu Ayomide, Bowen university (NGA)
• Chijioke Ugo, NRCRI (NGA)
• Otegbayo Bolanle, Bowen university (NGA)
• Arufe Santiago, CIRAD-PERSYST-UMR Qualisud (FRA) ORCID: 0000-0002-8644-6921
• Akissoé Noël, UAC (BEN)
• Mestres Christian, CIRAD-PERSYST-UMR Qualisud (FRA)
• Dufour Dominique, CIRAD-PERSYST-UMR Qualisud (FRA) ORCID: 0000-0002-7794-8671
• Ayetigbo Oluwatoyin, CIRAD-PERSYST-UMR Qualisud (FRA) ORCID: 0000-0001-5757-6674

Source : Cirad-Agritrop (https://agritrop.cirad.fr/611188/)

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