Physicochemical and Functional Properties of Dioscorea alata L. cv “Brazo” Starch during post-harvest Storage

Sorh, Souleymane; Libra, Michel Archange; Diby, N.; Dabonne, Soumaila

doi:10.31695/ijasre.2019.33485

Cited by 2 publications

(4 citation statements)

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“…The result indicates that the analysed yam species were significantly different (p≤0.05) with Dioscorea alata having the highest ash content. However, these were different from reports by Sorh et al (2015) that ranged from 1.64±0.03 % to 1.78±0.03 % for Dioscorea alata species. Ash content reveals how heavily the yam cultivars are stuffed with minerals (Akonor et al, 2017).…”

Section: Ash Contentcontrasting

confidence: 99%

Comparative Assessment of the Proximate Composition, Functional Properties and Amino Acid Profile of Dioscorea bulbifera, Dioscorea alata and Dioscorea rotundata Found in Minna, Niger State

Godfrey,

Faith,

Esther

2023

BIOMEDNATPROCH

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The proximate composition, functional properties and amino acid profile of samples of Dioscorea alata, Dioscorea rotundata and Dioscorea bulbifera were investigated using standard analytical methods. The results showed that Dioscorea alata had the highest ash (5.59±0.06 %) and crude fiber content (12.12±0.20 %), indicating that it has more mineral stuffing and is best to reduce the risk of obesity. Dioscorea rotundata had the highest fat content (11.63±0.04 %) as well as the lowest moisture content (7.04±0.06 %), indicating that it is a better source of calories and has a longer shelf-life than other yam species analysed. Dioscorea bulbifera also had the highest crude protein (8.64±0.03 %) and carbohydrates (77.51±0.08 %) than other yam species analysed, indicating high bodybuilding capacity and a better source of energy than other yam samples analysed. Dioscorea alata showed the highest bulk density (0.87±0.02 g/cm3) and swelling capacity (15.25±0.03 g/g). It is indicating its usefulness in the reduction of paste thickness and water-holding capacity of starch granules respectively while Dioscorea rotundata, showed the highest water absorption capacity (164.02±0.02 %), oil absorption capacity (149.76±0.02 %) and dispersibility (72.17±0.01 %). This indicates its importance in the consistency and bulking of products, flavour retaining in food and reconstitution of flour samples in water to give a fine consistent paste during mixing. The yam species were also rich in amino acids which are building blocks of protein. However, Dioscorea rotundata was the richest in amino acid content, as it had 36.32±0.16 g/100g and 36.49±0.16 g/100g, for essential and non-essential amino acids respectively.

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Section: Ash Contentcontrasting

confidence: 99%

Comparative Assessment of the Proximate Composition, Functional Properties and Amino Acid Profile of Dioscorea bulbifera, Dioscorea alata and Dioscorea rotundata Found in Minna, Niger State

Godfrey,

Faith,

Esther

2023

BIOMEDNATPROCH

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“…The result indicates that there was a significant difference (p≤0.05) in the yam species analysed with Dioscorea rotundata showing the highest ash content. However, these results were different from reports by Sorh et al (2015) that ranged from 1.64±0.03 a % to 1.78±0.03 a % for varieties of Dioscorea alata. The ash content is an indication of the extent of mineral stuffing in the Dioscorea species (Akonor et al, 2017).…”

Section: Ash Contentcontrasting

confidence: 99%

“…The result indicates that there was a significant difference (p≤0.05) in the yam species analysed with Dioscorea dumenturom showing the highest calcium concentration. However, this concentration was low when compared to reports by Sorh et al (2015) which ranged from 150±14.50 ab mg/100g to 185±18.14 d mg/100g for varieties of Dioscorea alata. Calcium is necessary for blood clotting, muscle contraction, neurological function, bone and teeth formation (Trailokya et al, 2017).…”

Section: Calcium Concentrationcontrasting

confidence: 66%

“…The result indicates that the analysed yam species were significantly different (p≤0.05) with Dioscorea dumenturom having the highest phosphorous concentration. However, these values are low when compared to those of 410 mg/100g of sweet potato reported by Sorh et al (2015). Furthermore, phosphorous appeared to be the most abundant mineral in all the yam samples analysed.…”

Section: Phosphorous Concentrationcontrasting

confidence: 64%

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Proximate Composition, Levels of Some Essential Mineral Elements and Anti-Nutritional Components of Some Yam Species Found in Minna, Niger State

Godfrey,

Esther,

Faith

2022

BIOMEDNATPROCH

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Samples of Dioscorea dumenturom, Dioscorea rotundata and Dioscorea cayenensis were investigated for their proximate composition, anti-nutritional and mineral contents using standard analytical methods. These varieties of Dioscorea analysed showed a significant difference (Pâ‰¤0.05) amongst them. However, from the results, it was observed that Dioscorea rotundata had the highest ash (8.05Â±0.05 %) and crude fibre content (13.11Â±0.10 %) which indicates that it contains more mineral stuffing and is best for softening of stool. Dioscorea cayenensis had the highest fat content (16.31Â±0.30 %), indicating that it is a better source of calories than other yam species analysed. Dioscorea dumenturom had the lowest moisture content (3.51Â±0.01 %) as well as the highest crude protein (12.29Â±0.01 %) and carbohydrates (69.04Â±0.10 %) than other yam species analysed, indicating its longer shelf-life, high bodybuilding capacity and better source of energy than other yam species analysed. The anti-nutritional constituent of alkaloid and tannin were lowest in Dioscorea cayenensis while Dioscorea rotundata had the least cyanide, phytate and oxalate content. This implies that these particular yams are safer for consumption. The elemental analysis in mg/100g indicated that the yam species contained appreciable levels of essential minerals, with Dioscorea dumenturom having the highest sodium, calcium, iron, potassium, phosphorous and magnesium concentration of 32.05Â±0.07 mg/100g,190.57Â±0.01mg/100g, 5.98Â±0.03 mg/100g, 80.12Â±0.17 mg/100g, 237.10Â±0.48 mg/100g and 100.22Â±0.03 mg/100g respectively. All these mineral concentrations exist within the permissible limit of WHO and hence indicate that the yam species can serve as a good source of minerals.

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Physicochemical and Functional Properties of Dioscorea alata L. cv “Brazo” Starch during post-harvest Storage

Cited by 2 publications

References 0 publications

Comparative Assessment of the Proximate Composition, Functional Properties and Amino Acid Profile of Dioscorea bulbifera, Dioscorea alata and Dioscorea rotundata Found in Minna, Niger State

Comparative Assessment of the Proximate Composition, Functional Properties and Amino Acid Profile of Dioscorea bulbifera, Dioscorea alata and Dioscorea rotundata Found in Minna, Niger State

Proximate Composition, Levels of Some Essential Mineral Elements and Anti-Nutritional Components of Some Yam Species Found in Minna, Niger State

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