Pectin interaction with thermally modified starch affects physicochemical properties and digestibility of starch as revealed by logarithm of slop plot

Interaction of pectin with starch modified by heat-moisture treatment (HMT) was evaluated. HMT preserved the presence of starch fractions with k1 and k2 (digestion rate constants at rapid and slow phase, respectively) being 4.5 and 0.42 × 10−2 min−1. Compared to the native starch, HMT starch had low...

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Main Authors: Herlina Marta, Yana Cahyana, Mohamad Djali
Format: Article
Language:English
Published: Taylor & Francis Group 2021-01-01
Series:CyTA - Journal of Food
Subjects:
Online Access:http://dx.doi.org/10.1080/19476337.2020.1858969
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author Herlina Marta
Yana Cahyana
Mohamad Djali
author_facet Herlina Marta
Yana Cahyana
Mohamad Djali
author_sort Herlina Marta
collection DOAJ
description Interaction of pectin with starch modified by heat-moisture treatment (HMT) was evaluated. HMT preserved the presence of starch fractions with k1 and k2 (digestion rate constants at rapid and slow phase, respectively) being 4.5 and 0.42 × 10−2 min−1. Compared to the native starch, HMT starch had lower k1 and k2 probably due to the change in crystalline type. HMT increased total digestible starch from 1.02% in native to 27.23% in HMT starch. The decrease in k1 and/or k2 with the increase in pectin might be linked to the effect of viscosity or pectin–amylase interaction, while the decrease in digestible starch at rapid phase (C1∞) could be attributed to pectin–starch interaction. Pectin affected significantly water absorption capacity, syneresis, cohesiveness and gumminess of HMT starch but did not alter those of native starch. The effect of HMT on functional, textural and pasting properties was more remarkable than the effect of pectin.
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spelling doaj.art-69302bb5cdc14f5b94d6b6ea29f3831f2022-12-21T19:38:54ZengTaylor & Francis GroupCyTA - Journal of Food1947-63371947-63452021-01-01191637110.1080/19476337.2020.18589691858969Pectin interaction with thermally modified starch affects physicochemical properties and digestibility of starch as revealed by logarithm of slop plotHerlina Marta0Yana Cahyana1Mohamad Djali2Universitas PadjadjaranUniversitas PadjadjaranUniversitas PadjadjaranInteraction of pectin with starch modified by heat-moisture treatment (HMT) was evaluated. HMT preserved the presence of starch fractions with k1 and k2 (digestion rate constants at rapid and slow phase, respectively) being 4.5 and 0.42 × 10−2 min−1. Compared to the native starch, HMT starch had lower k1 and k2 probably due to the change in crystalline type. HMT increased total digestible starch from 1.02% in native to 27.23% in HMT starch. The decrease in k1 and/or k2 with the increase in pectin might be linked to the effect of viscosity or pectin–amylase interaction, while the decrease in digestible starch at rapid phase (C1∞) could be attributed to pectin–starch interaction. Pectin affected significantly water absorption capacity, syneresis, cohesiveness and gumminess of HMT starch but did not alter those of native starch. The effect of HMT on functional, textural and pasting properties was more remarkable than the effect of pectin.http://dx.doi.org/10.1080/19476337.2020.1858969banana starchpectinheat-moisture treatmentlos-plotdigestibilityphysicochemical properties
spellingShingle Herlina Marta
Yana Cahyana
Mohamad Djali
Pectin interaction with thermally modified starch affects physicochemical properties and digestibility of starch as revealed by logarithm of slop plot
CyTA - Journal of Food
banana starch
pectin
heat-moisture treatment
los-plot
digestibility
physicochemical properties
title Pectin interaction with thermally modified starch affects physicochemical properties and digestibility of starch as revealed by logarithm of slop plot
title_full Pectin interaction with thermally modified starch affects physicochemical properties and digestibility of starch as revealed by logarithm of slop plot
title_fullStr Pectin interaction with thermally modified starch affects physicochemical properties and digestibility of starch as revealed by logarithm of slop plot
title_full_unstemmed Pectin interaction with thermally modified starch affects physicochemical properties and digestibility of starch as revealed by logarithm of slop plot
title_short Pectin interaction with thermally modified starch affects physicochemical properties and digestibility of starch as revealed by logarithm of slop plot
title_sort pectin interaction with thermally modified starch affects physicochemical properties and digestibility of starch as revealed by logarithm of slop plot
topic banana starch
pectin
heat-moisture treatment
los-plot
digestibility
physicochemical properties
url http://dx.doi.org/10.1080/19476337.2020.1858969
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AT mohamaddjali pectininteractionwiththermallymodifiedstarchaffectsphysicochemicalpropertiesanddigestibilityofstarchasrevealedbylogarithmofslopplot