Rheological and textural studies of fresh and freeze-thawed native sago starche.

The viscoelastic and textural properties of freshly prepared and freeze-thawed sago starch–sugar gels were studied in comparison with other native starches from corn, wheat, tapioca, and potato. The gelatinisation and retrogradation properties of starches were studied using a DSC while the pasting p...

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Main Authors: Chin, Nyuk Ling, Yusof, Yus Aniza, Teng, Li Yuen
Format: Article
Language:English
English
Published: 2013
Online Access:http://psasir.upm.edu.my/id/eprint/28425/
http://psasir.upm.edu.my/id/eprint/28425/1/Rheological%20and%20textural%20studies%20of%20fresh%20and%20freeze.pdf
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author Chin, Nyuk Ling
Yusof, Yus Aniza
Teng, Li Yuen
author_facet Chin, Nyuk Ling
Yusof, Yus Aniza
Teng, Li Yuen
author_sort Chin, Nyuk Ling
building UPM Institutional Repository
collection Online Access
description The viscoelastic and textural properties of freshly prepared and freeze-thawed sago starch–sugar gels were studied in comparison with other native starches from corn, wheat, tapioca, and potato. The gelatinisation and retrogradation properties of starches were studied using a DSC while the pasting properties of starch–sugar mixtures during the cooking period were studied using a starch pasting cell. The freeze-thaw stability of gels was evaluated by gravimetric measurements of the water of syneresis. The different starches gave properties which varied following to their botanical sources. High-amylose cereal starches (wheat and corn) produced harder gels, while low-amylose root starch (tapioca) produced softer gels. Sago and potato gels showed close similarities in their viscoelastic and textural characteristics. Although the freeze-thaw cycle greatly increased the viscoelasticity and hardness of these two gels, reheating at high temperature significantly reduced these negative effects and resulted in partial recovery of the gel structures. Sago starch produced gels with very low syneresis and high cohesiveness, implying its potential use as a gelling agent in the frozen food industries.
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spelling upm-284252015-09-15T01:35:01Z http://psasir.upm.edu.my/id/eprint/28425/ Rheological and textural studies of fresh and freeze-thawed native sago starche. Chin, Nyuk Ling Yusof, Yus Aniza Teng, Li Yuen The viscoelastic and textural properties of freshly prepared and freeze-thawed sago starch–sugar gels were studied in comparison with other native starches from corn, wheat, tapioca, and potato. The gelatinisation and retrogradation properties of starches were studied using a DSC while the pasting properties of starch–sugar mixtures during the cooking period were studied using a starch pasting cell. The freeze-thaw stability of gels was evaluated by gravimetric measurements of the water of syneresis. The different starches gave properties which varied following to their botanical sources. High-amylose cereal starches (wheat and corn) produced harder gels, while low-amylose root starch (tapioca) produced softer gels. Sago and potato gels showed close similarities in their viscoelastic and textural characteristics. Although the freeze-thaw cycle greatly increased the viscoelasticity and hardness of these two gels, reheating at high temperature significantly reduced these negative effects and resulted in partial recovery of the gel structures. Sago starch produced gels with very low syneresis and high cohesiveness, implying its potential use as a gelling agent in the frozen food industries. 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/28425/1/Rheological%20and%20textural%20studies%20of%20fresh%20and%20freeze.pdf Chin, Nyuk Ling and Yusof, Yus Aniza and Teng, Li Yuen (2013) Rheological and textural studies of fresh and freeze-thawed native sago starche. Food Hydrocolloids, 31 (2). pp. 156-165. ISSN 0268-005X 10.1016/j.foodhyd.2012.11.002 English
spellingShingle Chin, Nyuk Ling
Yusof, Yus Aniza
Teng, Li Yuen
Rheological and textural studies of fresh and freeze-thawed native sago starche.
title Rheological and textural studies of fresh and freeze-thawed native sago starche.
title_full Rheological and textural studies of fresh and freeze-thawed native sago starche.
title_fullStr Rheological and textural studies of fresh and freeze-thawed native sago starche.
title_full_unstemmed Rheological and textural studies of fresh and freeze-thawed native sago starche.
title_short Rheological and textural studies of fresh and freeze-thawed native sago starche.
title_sort rheological and textural studies of fresh and freeze-thawed native sago starche.
url http://psasir.upm.edu.my/id/eprint/28425/
http://psasir.upm.edu.my/id/eprint/28425/
http://psasir.upm.edu.my/id/eprint/28425/1/Rheological%20and%20textural%20studies%20of%20fresh%20and%20freeze.pdf