Sensory characteristics of five sweet potato cultivars and their changes during storage under tropical conditions

Oirschot, Q.E.A. van; Rees, D.; Aked, J.

doi:10.1016/s0950-3293(02)00209-4

Cited by 45 publications

(45 citation statements)

References 12 publications

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“…This differs from the findings of van Oirschot et al, 9 who reported that stored roots became sweeter. Considering consumer acceptance, the trend was similar to the sensory panel assessment.…”

Section: Internal Preference Mapping Of Individual Consumer Responsescontrasting

confidence: 99%

“…Another field study 8 in the Mpigi and Luwero districts of central Uganda found that OFSP cultivars generally gave lower yields than pale-fleshed sweetpotato (PFSP) cultivars, and, in acceptability tests, children were reported to find OFSP acceptable, although farmers preferred PFSP. A storage study 9 indicated that sensory differences between PFSP cultivars were mainly determined by textural components and that, during storage, sweet and chestnutty characteristics varied the most. Of these differences, cultivar differences were greater than those occurring during storage.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2007

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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.

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Section: Internal Preference Mapping Of Individual Consumer Responsescontrasting

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

et al. 2007

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“…is an important food security crop in sub-Saharan Africa (van Oirschot et al, 2003). In Ghana, the traditional sweetpotato cultivars are either white or cream-fleshed devoid of β-carotene, a vitamin A precursor.…”

Section: Introductionmentioning

confidence: 99%

“…During curing and storage, certain biochemical changes occur and may either be desirable or undesirable (van Oirschot et al, 2003). For instance, the sensory attributes of roots could be affected by location and sweetpotato management practices (Tomlins et al, 2007b).…”

Section: Introductionmentioning

confidence: 99%

“…George and Kamara (1988) reported that storage of sweetpotato roots in baskets or on earthen floor had a little effect on the sensory qualities of boiled or fried roots of some cultivars. Furthermore, the sensory property of sweetpotato cultivars was not greatly affected by storage under tropical conditions (van Oirschot et al, 2003), but Mpagalile et al (2007) reported that storage in traditional pit affected the sensory qualities of sweetpotato roots.…”

Section: Introductionmentioning

confidence: 99%

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Sensory quality of orange-fleshed sweetpotato cultivars as affected by curing and household-level storage methods

Atuna¹,

Amagloh²,

Carey³

et al. 2017

Afr. J. Food Sci.

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A 2×2×3 factorial design was used to investigate the effect of two orange-fleshed sweetpotato cultivars, three curing treatments and two homestead storage methods on the general appearance, finger-feel firmness, sweetness and overall acceptability of boiled roots. The cultivars were Apomuden and Nane, and the two homestead storage methods were the sand box and the heap storage. In-ground curing (dehaulming) and field-piled curing, for seven days and then uncured treatment were the curing options investigated. A hedonic scale ranging from 1 = extremely dislike to 5 = like extremely was used. For cultivars, the sensory scores ranged from 3.20 to 3.84 (farming season I) and 3.32 to 3.93 (farming season II), indicating good consumer preference. Curing type significantly (p<0.05) influenced the sensory properties of roots in the second farming season. Storage type showed no significant difference (p > 0.05) in all sensory attributes in both farming seasons except for sweetness and the heap storage had significantly higher (3.84 vs. 3.47, p<0.0001; respectively) score relative to sand box in the first year. Apart from general appearance (3.64 vs. 3.32, p = 0.002) and finger-feel firmness (3.51 vs. 3.25; p = 0.006) in which females had a significantly higher score than males in the first farming season, all the other sensory attributes were similarly ranked by males and females for both years. In-ground and field-piled curing methods, there is increased consumer acceptability and it should be encouraged.

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Sweetpotato production practices, constraints, and variety evaluation under different storage types

Abrham

Beshir

Haile

2020

Food and Energy Security

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Sweetpotato plays an important role in ensuring food security and household income sources for local communities in Ethiopia. It is dominantly grown in southern parts of Ethiopia. However, its production and productivity over the last few years has declined due to the limited access of quality planting materials at the onset of the rainy season, disease, and severe pest infestation. Therefore, it was imperative to carry out this study to identify the main constraints related to the recent decline in sweet in Misrak Badawacho District. The survey result revealed that many varieties of sweetpotato were grown in the district; mainly, Awassa‐83, Ogan‐Sagan, and Wolaita‐local were the most preferred variety by producers. The main sweetpotato production and storage constraints in the study district are as follows: rodents, disease and insect pests, heat and drought, shortage of quality planting materials, and absence of best methods for long‐term storage. Ogan‐Sagan and Wolaita‐local were evaluated under different storage types (straw, soil, ash, sawdust, and sand storage). The combination of Awassa‐83 variety and sand storage was performed better in percentage of decay, weight loss, and weevil damage, whereas length and number of vine per storage roots were performed better in the separate treatment. Thus, Awassa‐83 variety and sand storage can be recommended for maintaining the storage roots during dry periods and access of quality vines at the onset of the rainy season. More importantly, sand storage provides an opportunity to maintain the quality of sweetpotato storage roots for a long period of time and producers can easily and timely access quality vines at the onset of rainy season.

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Sensory characteristics of five sweet potato cultivars and their changes during storage under tropical conditions

Cited by 45 publications

References 12 publications

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

Sensory quality of orange-fleshed sweetpotato cultivars as affected by curing and household-level storage methods

Sweetpotato production practices, constraints, and variety evaluation under different storage types

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