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Sensory evaluation and consumer acceptability of pale-fleshed and orange-fleshed sweetpotato by school children and mothers with preschool children

Sensory evaluation and consumer acceptability of pale-fleshed and orange-fleshed sweetpotato by school children and mothers with preschool children

Tomlins, Keith, Ndunguru, Gabriel, Stambul, Kimboka, Joshua, Neema, Ngendello, Theresia, Rwiza, Elizabeth, Amour, Rahila, Ramadhani, Bundala, Kapande, Asia and Westby, Andrew (2007) Sensory evaluation and consumer acceptability of pale-fleshed and orange-fleshed sweetpotato by school children and mothers with preschool children. Journal of the Science of Food and Agriculture, 87 (13). pp. 2436-2446. ISSN 0022-5142 (doi:10.1002/jsfa.2931)

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Abstract

The purpose of this study was to evaluate the flavour profile and consumer acceptability of four
sweetpotato (Ipomoea batatas (L.) Lam.) cultivars that differed in β-carotene content. Descriptive sensory
profiles of the sweetpotato cultivars were determined using a sensory panel. Consumers in the Lake Zone of
Tanzania comprised school children (n = 94) and mothers with preschool children (n = 59). Additionally, mothers
gave acceptability scores for how they perceived their children’s acceptance. Traditional pale-fleshed (PFSP) and
high-β-carotene orange-fleshed (OFSP) sweetpotato cultivars showed distinct differences in sensory profile. Mean
consumer responses indicated that OFSP were more acceptable than PFSP; mothers differed from school children
by giving higher acceptance scores. Mothers did not score the perceived acceptability for their preschool children
different from themselves. Segmentation appeared to suggest three distinct patterns of consumer acceptability
among school children and mothers. The majority gave high acceptability scores to both OFSP and PFSP. Those
in the smaller second group gave higher scores to OFSP than to PFSP, while those (particularly school children)
in the third segment gave lower scores to the OFSP cultivar Karote DSM. There was evidence that school children
and mothers viewed the sweetpotato cultivars differently with respect to fibrous texture. A preliminary storage
trial where the sweetpotato cultivars were kept for 12 weeks in pit structures indicated that the acceptability and
sensory profile of the cultivars did not differ with storage.

Item Type: Article
Uncontrolled Keywords: sweetpotato, Ipomea batatas, β-carotene, vitamin A, sensory evaluation, consumer acceptability
Subjects: T Technology > TP Chemical technology
T Technology > TX Home economics
Faculty / Department / Research Group: Faculty of Engineering & Science > Natural Resources Institute
Faculty of Engineering & Science > Natural Resources Institute > Food & Markets Department
Related URLs:
Last Modified: 11 Nov 2011 12:06
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/2402

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