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Crystallinity, Thermal and Morphological Characteristics of Resistant Starch Type III Produced by Hydrothermal Treatment of Debranched Cassava Starch

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dc.contributor.authorMutundi C.
dc.contributor.authorRost F.
dc.contributor.authorOnyango C.
dc.contributor.authorHenle D.
dc.contributor.authorRohm H.
dc.date.accessioned2024-07-11T05:53:36Z
dc.date.issued2009-11-25
dc.descriptionFull-text Article
dc.description.abstractCassava starch was debranched using pullulanase and the linear glucans recrystallized by incubation at 60°C or by temperature cycling at 120/60°C, and further subjected to heat-moisture treatment (HMT). Resistant starch (RS III) contents increased from 21.4 g/100 g in the debranched starch (DS) to 67.3 g/100 g in the debranched starch incubated at 60°C (DRS) and 47.8 g/100 g in the debranched starch subjected to temperature cycling (DCS), and further to 84.8 g/100 g and 88.4% g/100 g in HMT-DRS and HMT-DCS, respectively. Total crystallinity varied between 31.4-59.8% and the crystalline type was C in DS and DRS and A in DCS, HMTDRS and HMT-DCS. The melting properties were characterized by broad endotherms, but the exact melting region and enthalpy were dependent on recrystallization method. The main endothermic peaks of DS and DRS occurred at 103.9 and 109.8°C, respectively, whereas DCS exhibited split endotherms at 113.6 and 138.1°C. Heat-moisture treatment broadened the endotherms and increased their enthalpies. Scanning electron micrographs revealed surface topography differences related to size and aggregation of individual crystalline bodies.
dc.description.sponsorshipN/A
dc.identifier.citationMutungi, C., Rost, F., Onyango, C., Jaros, D., & Rohm, H. (2009). Crystallinity, thermal and morphological characteristics of resistant starch type III produced by hydrothermal treatment of debranched cassava starch. Starch‐Stärke, 61(11), 634-645.
dc.identifier.urihttps://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=Crystallinity%2C+Thermal+and+Morphological+Characteristics+of+Resistant+Starch+Type+III+Produced+by+Hydrothermal+Treatment+of+Debranched+Cassava+Starch&btnG=#d=gs_cit&t=1720677091927&u=%2Fscholar%3Fq%3Dinfo%3A89E0t1htgekJ%3Ascholar.google.com%2F%26output%3Dcite%26scirp%3D0%26hl%3Den
dc.identifier.urihttps://repository.nrf.go.ke/handle/123456789/1292
dc.language.isoen
dc.publisherWiley Online Library
dc.subjectResistant Starch Type III
dc.subjectHydrothermal Treatment
dc.subjectDebranched Cassava Starch
dc.subjectCrystallinity
dc.subjectThermal Characteristics
dc.titleCrystallinity, Thermal and Morphological Characteristics of Resistant Starch Type III Produced by Hydrothermal Treatment of Debranched Cassava Starch
dc.typeArticle
dspace.entity.typePublication

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