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2004•Korean Journal of Food Science and TechnologyRequires access

Rheological Properties of Gamma Irradiated Arrowroot (Pueraria thunbergina. B) Starch

Herena Kuhm, Jin-Hyuk Lim, Eun‐Ju Lee, Kyu‐Seob Chang

Open publisher page 3 citations

Abstract

Rheological properties of gamma-irradiated arrowroot starch was examined to utilize as fundamental research data far processing. Irradiated arrowroot starch solutions (3, 4, 5, 6%) were gelatinized at for 40 min, and its flow properties measured using rheometer at and 10 to 200 rpm rotation rate. Rheological parameters of irradiated arrowroot starch gelatinized solution were calculated using Herschel-Bulkley equation. Gelatinized arrowroot starch solutions irradiated at and 5kGy showed pseudoplastic fluid behavior, while those irradiated at 10, 20, and 30kGy were the dilatant with (yield stress).

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What this paper is about

Rheological properties of gamma-irradiated arrowroot starch was examined to utilize as fundamental research data far processing. Irradiated arrowroot starch solutions (3, 4, 5, 6%) were gelatinized at for 40 min, and its flow properties measured using rheometer at and 10 to 200 rpm rotation rate. Rheological parameters of irradiated arrowroot starch gelatinized solution were calculated using Herschel-Bulkley equation. Gelatinized arrowroot starch solutions irradiated at and 5kGy showed pseudoplastic fluid behavior, while those irradiated at 10, 20, and 30kGy were the dilatant with (yield stress).

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Available abstract

Rheological properties of gamma-irradiated arrowroot starch was examined to utilize as fundamental research data far processing. Irradiated arrowroot starch solutions (3, 4, 5, 6%) were gelatinized at for 40 min, and its flow properties measured using rheometer at and 10 to 200 rpm rotation rate. Rheological parameters of irradiated arrowroot starch gelatinized solution were calculated using Herschel-Bulkley equation. Gelatinized arrowroot starch solutions irradiated at and 5kGy showed pseudoplastic fluid behavior, while those irradiated at 10, 20, and 30kGy were the dilatant with (yield stress).

Key concepts: Rheology, Starch, Shear thinning, Dilatant, Materials science, Rheometer, Irradiation, Modified starch

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