Physicochemical Properties of Wild Yam (Dioscorea villosa) Starch
Native starch extracted from wild yam (Dioscorea villosa) was evaluated for its intrinsic physicochemical properties. From the results, essential metals such as K, Ca, P, and Fe were detected along with some nonessential heavy metals below the WHO permissible limits. Bulk density was 0.13–0.63 g/mL....
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| Format: | Article |
| Language: | English |
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Wiley
2023-01-01
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| Series: | International Journal of Food Science |
| Online Access: | http://dx.doi.org/10.1155/2023/8868218 |
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| _version_ | 1849470379466162176 |
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| author | Abraham Olasupo Oladebeye Aderonke Adenike Oladebeye Jacob Olalekan Arawande |
| author_facet | Abraham Olasupo Oladebeye Aderonke Adenike Oladebeye Jacob Olalekan Arawande |
| author_sort | Abraham Olasupo Oladebeye |
| collection | DOAJ |
| description | Native starch extracted from wild yam (Dioscorea villosa) was evaluated for its intrinsic physicochemical properties. From the results, essential metals such as K, Ca, P, and Fe were detected along with some nonessential heavy metals below the WHO permissible limits. Bulk density was 0.13–0.63 g/mL. The water absorption capacity, oil absorption capacity, swelling power, and solubility of the starch were pH-responsive. Thermal profiles showed onset temperature, To (59.21 °C), peak temperature, Tp (60.22 °C), endset temperature, Tc (63.12 °C), gelatinization enthalpy, ΔHgel (0.54 J/g), temperature range of gelatinization, R (3.91 °C), and peak height index, PHI (1.87 J/g °C). Exhibiting a crystallite size of 0.03 nm, absorption peaks of 15.3119°, 24.4120°, and 18.4170°, corresponding to interplanar d-spacings of 3.7500 Ǻ, 5.14000 Ǻ, and 4.954610 Ǻ, were obtained. Evidence of C–H at 1338.1 cm-1, C–O at 640.0 cm-1, C–H stretch at 2829.7 cm-1, and a strong and broad O–H group at 3291.2 cm-1 were obtained. The starch granules had low particle sizes, were homogeneous, and were aggregates of irregular shapes. At a lower pH (2-4), the wild yam starch studied could be a potential absorbent material in the production of disposable diapers and female napkins and as biodegradable films due to its high hydrophobicity at a high pH (8-12). |
| format | Article |
| id | doaj-art-d0b41fe18cc6469d9c77683ff5bb176f |
| institution | Kabale University |
| issn | 2314-5765 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Food Science |
| spelling | doaj-art-d0b41fe18cc6469d9c77683ff5bb176f2025-08-20T03:25:08ZengWileyInternational Journal of Food Science2314-57652023-01-01202310.1155/2023/8868218Physicochemical Properties of Wild Yam (Dioscorea villosa) StarchAbraham Olasupo Oladebeye0Aderonke Adenike Oladebeye1Jacob Olalekan Arawande2Department of Science Laboratory TechnologyDepartment of Food TechnologyDepartment of Science Laboratory TechnologyNative starch extracted from wild yam (Dioscorea villosa) was evaluated for its intrinsic physicochemical properties. From the results, essential metals such as K, Ca, P, and Fe were detected along with some nonessential heavy metals below the WHO permissible limits. Bulk density was 0.13–0.63 g/mL. The water absorption capacity, oil absorption capacity, swelling power, and solubility of the starch were pH-responsive. Thermal profiles showed onset temperature, To (59.21 °C), peak temperature, Tp (60.22 °C), endset temperature, Tc (63.12 °C), gelatinization enthalpy, ΔHgel (0.54 J/g), temperature range of gelatinization, R (3.91 °C), and peak height index, PHI (1.87 J/g °C). Exhibiting a crystallite size of 0.03 nm, absorption peaks of 15.3119°, 24.4120°, and 18.4170°, corresponding to interplanar d-spacings of 3.7500 Ǻ, 5.14000 Ǻ, and 4.954610 Ǻ, were obtained. Evidence of C–H at 1338.1 cm-1, C–O at 640.0 cm-1, C–H stretch at 2829.7 cm-1, and a strong and broad O–H group at 3291.2 cm-1 were obtained. The starch granules had low particle sizes, were homogeneous, and were aggregates of irregular shapes. At a lower pH (2-4), the wild yam starch studied could be a potential absorbent material in the production of disposable diapers and female napkins and as biodegradable films due to its high hydrophobicity at a high pH (8-12).http://dx.doi.org/10.1155/2023/8868218 |
| spellingShingle | Abraham Olasupo Oladebeye Aderonke Adenike Oladebeye Jacob Olalekan Arawande Physicochemical Properties of Wild Yam (Dioscorea villosa) Starch International Journal of Food Science |
| title | Physicochemical Properties of Wild Yam (Dioscorea villosa) Starch |
| title_full | Physicochemical Properties of Wild Yam (Dioscorea villosa) Starch |
| title_fullStr | Physicochemical Properties of Wild Yam (Dioscorea villosa) Starch |
| title_full_unstemmed | Physicochemical Properties of Wild Yam (Dioscorea villosa) Starch |
| title_short | Physicochemical Properties of Wild Yam (Dioscorea villosa) Starch |
| title_sort | physicochemical properties of wild yam dioscorea villosa starch |
| url | http://dx.doi.org/10.1155/2023/8868218 |
| work_keys_str_mv | AT abrahamolasupooladebeye physicochemicalpropertiesofwildyamdioscoreavillosastarch AT aderonkeadenikeoladebeye physicochemicalpropertiesofwildyamdioscoreavillosastarch AT jacobolalekanarawande physicochemicalpropertiesofwildyamdioscoreavillosastarch |