Oderinde, A. Adewale and Ibikunle, A .A and Bakre, L. G. and Babarinde, N. A. (2020) Modification of African breadfruit (Treculia africana, Decne) kernel starch: Physicochemical, morphological, pasting, and thermal properties. International Journal of Biological Macromolecules. 79 -87.
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Oderinde et al. - 2020 - Modification of African breadfruit (Treculia africana, Decne) kernel starch Physicochemical, morphological, pas.pdf Download (1MB) |
Abstract
The need for starch to meet the ever-increasing industrial applications and its inherent problems in the native state have led to researches into unconventional starch sources and starch modifications, respectively. In this study, starch was isolated from African breadfruit kernels and modified to produce acetylated, AC, oxidized, OX, and acid-thinned, AT, starches. The effects ofmodifications on the native starch, NA, were examined through physicochemical, pasting, morphological and thermal properties. Modifications caused significant (p b .05) reductions in the NA starch moisture, ash, crude protein, crude fat, and crude fibre compositions. Swelling power had direct relationshipwith increase in temperature. Following modifications, OX starch showed themost significant increase in oil absorption capacity while NA had better water absorption capacity than the modified starches. Acid-thinning significantly improved the gelation and reduced the pasting properties of NA starch.Morphological study using scanning electron micrograph, revealed oblong and oval granuleswith rough surfaces for all the starches with no significant differences. Thermogravimetry of the starches showed single-step decomposition with increased thermal stability of African breadfruit kernel starch following modifications. DSC study showed that gelatinisation transition temperature of NA reduced following modification. The study showed that modification improved African breadfruit kernel starch properties.
| Item Type: | Article |
|---|---|
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Chemistry |
| Depositing User: | Mr. Bolanle Yisau I. |
| Date Deposited: | 16 Jun 2021 19:42 |
| Last Modified: | 16 Jun 2021 19:42 |
| URI: | http://eprints.federalpolyilaro.edu.ng/id/eprint/1742 |
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