Response surface methodology in the optimization of walur (Amorphophallus paeoniifolius var. Sylvestris) starch pregelatinization process

This study aimed to determine the effect of temperature and time of the pregelatinization process on the physical and functional properties of pregelatinized and native walur starch using the central composite design method of response surface methodology (CCD-RSM). Several analyses, including rapid...

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Main Authors: Simon Bambang Widjanarko, Devy Ulandari, Kiki Fibrianto
Format: Article
Language:English
Published: Universitas Brawijaya, Fakultas Teknologi Pertanian 2023-03-01
Series:Advances in Food Science, Sustainable Agriculture, and Agroindustrial Engineering
Subjects:
Online Access:https://afssaae.ub.ac.id/index.php/afssaae/article/view/602/174
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author Simon Bambang Widjanarko
Devy Ulandari
Kiki Fibrianto
author_facet Simon Bambang Widjanarko
Devy Ulandari
Kiki Fibrianto
author_sort Simon Bambang Widjanarko
collection DOAJ
description This study aimed to determine the effect of temperature and time of the pregelatinization process on the physical and functional properties of pregelatinized and native walur starch using the central composite design method of response surface methodology (CCD-RSM). Several analyses, including rapid visco analyzer (RVA), scanning electron microscopy (SEM), and X-ray diffraction (XRD), were used to characterize an optimum pregelatinized walur starch (PWS). The optimum conditions for producing PWS were at 87.51oC and 9.71 minutes. The experimental verification data, repeated three times, were not significantly different (P>0.05) from the prediction optimization data generated by the Design Expert Software 7.1.5 Trial Version, which produces PWS with 19.56 ± 0.68 % swelling, 9.87 ± 0.18 % solubility and 835.62 ± 0.84 % water holding capacity (WHC). The result from RVA analysis showed that the pregelatinization process of walur starch increases the peak, final and setback viscosity, peak time, and pasting temperatures but decreases breakdown viscosity. Native walur starch (NWS) had a more crystalline form than PWS on XRD analysis. The SEM analysis revealed that NWS had smooth surface granules compared to PWS granules.
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spelling doaj.art-7afbbd4b8fff4134864bbc680d319b742023-07-17T04:55:46ZengUniversitas Brawijaya, Fakultas Teknologi PertanianAdvances in Food Science, Sustainable Agriculture, and Agroindustrial Engineering2622-59212023-03-0161627110.21776/ub.afssaae.2023.006.01.6Response surface methodology in the optimization of walur (Amorphophallus paeoniifolius var. Sylvestris) starch pregelatinization processSimon Bambang Widjanarko0Devy Ulandari1Kiki Fibrianto2Universitas BrawijayaUniversitas BrawijayaUniversitas BrawijayaThis study aimed to determine the effect of temperature and time of the pregelatinization process on the physical and functional properties of pregelatinized and native walur starch using the central composite design method of response surface methodology (CCD-RSM). Several analyses, including rapid visco analyzer (RVA), scanning electron microscopy (SEM), and X-ray diffraction (XRD), were used to characterize an optimum pregelatinized walur starch (PWS). The optimum conditions for producing PWS were at 87.51oC and 9.71 minutes. The experimental verification data, repeated three times, were not significantly different (P>0.05) from the prediction optimization data generated by the Design Expert Software 7.1.5 Trial Version, which produces PWS with 19.56 ± 0.68 % swelling, 9.87 ± 0.18 % solubility and 835.62 ± 0.84 % water holding capacity (WHC). The result from RVA analysis showed that the pregelatinization process of walur starch increases the peak, final and setback viscosity, peak time, and pasting temperatures but decreases breakdown viscosity. Native walur starch (NWS) had a more crystalline form than PWS on XRD analysis. The SEM analysis revealed that NWS had smooth surface granules compared to PWS granules.https://afssaae.ub.ac.id/index.php/afssaae/article/view/602/174pregelatinizationresponse surface methodologypasting temperaturepasting timewalur starch
spellingShingle Simon Bambang Widjanarko
Devy Ulandari
Kiki Fibrianto
Response surface methodology in the optimization of walur (Amorphophallus paeoniifolius var. Sylvestris) starch pregelatinization process
Advances in Food Science, Sustainable Agriculture, and Agroindustrial Engineering
pregelatinization
response surface methodology
pasting temperature
pasting time
walur starch
title Response surface methodology in the optimization of walur (Amorphophallus paeoniifolius var. Sylvestris) starch pregelatinization process
title_full Response surface methodology in the optimization of walur (Amorphophallus paeoniifolius var. Sylvestris) starch pregelatinization process
title_fullStr Response surface methodology in the optimization of walur (Amorphophallus paeoniifolius var. Sylvestris) starch pregelatinization process
title_full_unstemmed Response surface methodology in the optimization of walur (Amorphophallus paeoniifolius var. Sylvestris) starch pregelatinization process
title_short Response surface methodology in the optimization of walur (Amorphophallus paeoniifolius var. Sylvestris) starch pregelatinization process
title_sort response surface methodology in the optimization of walur amorphophallus paeoniifolius var sylvestris starch pregelatinization process
topic pregelatinization
response surface methodology
pasting temperature
pasting time
walur starch
url https://afssaae.ub.ac.id/index.php/afssaae/article/view/602/174
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AT devyulandari responsesurfacemethodologyintheoptimizationofwaluramorphophalluspaeoniifoliusvarsylvestrisstarchpregelatinizationprocess
AT kikifibrianto responsesurfacemethodologyintheoptimizationofwaluramorphophalluspaeoniifoliusvarsylvestrisstarchpregelatinizationprocess