Evaluating standard procedures for instrumental textural analysis of steamed potato: Relationship with sensory parameters

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cg.authorship.typesCGIAR and developing country instituteen
cg.authorship.typesCGIAR and advanced research instituteen
cg.contributor.affiliationInternational Potato Centeren
cg.contributor.affiliationNational Agricultural Research Laboratories, Ugandaen
cg.contributor.affiliationCentre de Cooperation International en Recherché Agronomique pour le Developmenten
cg.coverage.regionAfrica
cg.creator.identifierMariam Nakitto: 0000-0002-4140-7216en
cg.creator.identifierMukani Moyo: 0000-0001-5658-2669en
cg.creator.identifierThiago Otavio Mendes De Paula: 0000-0003-3695-7827en
cg.creator.identifierReuben SSALI Tendo: 0000-0002-8143-6564en
cg.identifier.urlhttps://agritrop.cirad.fr/610381/en
cg.subject.actionAreaGenetic Innovation
cg.subject.actionAreaResilient Agrifood Systems
cg.subject.cipPOTATOESen
cg.subject.cipGENETIC RESOURCESen
cg.subject.cipGENETICS, GENOMICS AND CROP IMPROVEMENT SCIENCES GGCIen
cg.subject.cipBREEDINGen
cg.subject.cipCROP AND SYSTEMS SCIENCES CSSen
cg.subject.impactAreaNutrition, health and food security
cg.subject.impactAreaClimate adaptation and mitigation
cg.subject.impactAreaEnvironmental health and biodiversity
cg.subject.sdgSDG 2 - Zero hungeren
cg.subject.sdgSDG 13 - Climate actionen
cg.subject.sdgSDG 3 - Good health and well-beingen
dc.contributor.authorNakitto, M.en
dc.contributor.authorMoyo, M.en
dc.contributor.authorMendes, T.en
dc.contributor.authorBalikoowa, B.en
dc.contributor.authorSsali, R.T.en
dc.contributor.authorAyetigbo, O.en
dc.contributor.authorMestres, C.en
dc.contributor.authorDufour, D.en
dc.date.accessioned2025-04-01T20:28:00Zen
dc.date.available2025-04-01T20:28:00Zen
dc.identifier.urihttps://hdl.handle.net/10568/173960
dc.titleEvaluating standard procedures for instrumental textural analysis of steamed potato: Relationship with sensory parametersen
dcterms.abstractConsumer preference for boiled potato in Uganda has been assessed to be prevalently based on soft (hardness) and mealy texture. However, harmonised standard procedures have not been hitherto developed to characterize the texture of boiled potato instrumentally in SSA. The RTBBreeding© project focussed on developing discriminant and sensory-correlated procedures based on comparative analyses of Extrusion, Penetration and Texture Profile Analysis (TPA) techniques for mid-throughput evaluation of texture of steamed potato from potato varieties. Tubers of nine popular landrace varieties cultivated in Kabale and Rakai districts of Uganda were used. The tubers were cut into 25 mm cubes, steamed for 15 min in banana leaves and analysed using a calibrated TA-XT texture analyser under standard conditions (Extrusion: test speed 1 mm s-1, strain 80 %, 5-blade grid Ottawa cell; Penetration: test speed 1 mm s-1, distance 10 mm, 60° cone probe; TPA: test speed 1 mm s-1, distance 5 mm, wait period 5 s, 75 mm cylindrical plate) at about 25 °C. For descriptive sensory analysis, twenty random tubers from each variety were steamed for 40 min and evaluated in duplicate by trained panellists for eleven selected sensory parameters on a 11-point scale ranging from 0 (minimum intensity) to 10 (maximum intensity). Results show that Area under curve/Extrusion work (73-236 N.mm), Maximum force/ hardness (6-17 N), and End force (6-15 N) were the more discriminant textural parameters for extrusion. Maximum force, End force and Extrusion work significantly correlated with sensory Moisture release and Hardness by hand. The discriminant textural parameters for penetration were Area under curve/ Penetration work (6-21 N mm) and Maximum force/ hardness (2-6 N). Significant correlations exist between penetration Hardness and Area under curve and the sensory Hardness by hand, fracturability, cohesiveness, and smoothness. Finally, the more discriminant textural parameters for TPA were Hardness (20-52 N), Gumminess (5-19 N) and Chewiness (5-18 N). There are significant correlations between TPA Adhesiveness and sensory moisture release and mealiness. Among the methods, the penetration method was more preferred as it correlated most with sensory evaluation, while TPA was least correlated with sensory.en
dcterms.accessRightsOpen Access
dcterms.bibliographicCitationNakitto, M.; Moyo, M.; Mendes, T.; Balikoowa, B.; Ssali, R.T.; Ayetigbo, O.; Mestres, C.; Dufour, D. 2024. Evaluating standard procedures for instrumental textural analysis of steamed potato: Relationship with sensory parameters. In: Tielkes, E. (ed.). Tropentag 2024: International Research on Food Security, Natural Resource Management and Rural Development – Book of Abstracts. Göttingen, Germany: Cuvillier Verlag. p. 300.en
dcterms.issued2024en
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.subjectpotatoesen
dcterms.subjectgenome-wide association studiesen
dcterms.subjectplant diseasesen
dcterms.subjectgenetic diversity (resource)en
dcterms.typeConference Paper

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