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In this study, we isolated starches from non-traditional sources, including quinoa, lentil, arrowhead, gorgon fruit, sorghum, chickpea, proso millet, and purple potato and investigated their morphology, physicochemical, and functional properties. Significant differences in starch particle morphology, swelling power, solubility, syneresis, crystalline pattern, and pasting viscosity were observed among the starches from these non-traditional sources. Further, all these isolated starches had unique properties because of their characteristic distinct granules when seen under scanning electron microscopy (SEM). The amylose content of the isolated starches shown significant difference (P < 0.05), and the values ranged between 11.46% and 37.61%. Results demonstrated that the isolated starches contained between 79.82% to 86.56% starch, indicating that the isolated starches had high purity. X-ray diffraction (XRD) patterns of starches isolated from sorghum, proso millet, quinoa, purple potato, and gorgon fruit presented A-type diffraction pattern; while lentil seeds, arrowhead, and chickpea starches presented C-type diffraction pattern. Overall, these results will promote the development of products based on starch isolated from non-traditional starches.


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Physicochemical and structural properties of starches from non-traditional sources in China

Show Author's information Yang Jingyia,1Chagam Koteswara Reddyb,1Zhili FanaBaojun Xua( )
Food Science and Technology Program, BNU-HKBU United International College, Zhuhai 519087, China
Department of Biochemistry and Bioinformatics, Institute of Science, GITAM (Deemed to be University), Visakhapatnam 530045, India

1 Two authors have equal contribution to this paper.Peer review under responsibility of KeAi Communications Co., Ltd.]]>

Abstract

In this study, we isolated starches from non-traditional sources, including quinoa, lentil, arrowhead, gorgon fruit, sorghum, chickpea, proso millet, and purple potato and investigated their morphology, physicochemical, and functional properties. Significant differences in starch particle morphology, swelling power, solubility, syneresis, crystalline pattern, and pasting viscosity were observed among the starches from these non-traditional sources. Further, all these isolated starches had unique properties because of their characteristic distinct granules when seen under scanning electron microscopy (SEM). The amylose content of the isolated starches shown significant difference (P < 0.05), and the values ranged between 11.46% and 37.61%. Results demonstrated that the isolated starches contained between 79.82% to 86.56% starch, indicating that the isolated starches had high purity. X-ray diffraction (XRD) patterns of starches isolated from sorghum, proso millet, quinoa, purple potato, and gorgon fruit presented A-type diffraction pattern; while lentil seeds, arrowhead, and chickpea starches presented C-type diffraction pattern. Overall, these results will promote the development of products based on starch isolated from non-traditional starches.

Keywords: Morphology, Viscosity, Starch, Quinoa, Sorghum, Proso millet

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Publication history

Received: 16 February 2021
Revised: 03 March 2021
Accepted: 04 July 2021
Published: 07 September 2022
Issue date: March 2023

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© 2023 Beijing Academy of Food Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co., Ltd.

Acknowledgements

Acknowledgements

This research was jointly supported by two research grants (R202016 and R202017) from Beijing Normal University-Hong Kong Baptist University United International College, China.

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This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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