Effect of gamma irradiation on the thermal and rheological properties of grain amaranth starch

Xiangli Kong; Stefan Kasapis; Jinsong Bao; Harold Corke

doi:10.1016/j.radphyschem.2009.07.019

Effect of gamma irradiation on the thermal and rheological properties of grain amaranth starch

Xiangli Kong, Stefan Kasapis, Jinsong Bao, Harold Corke^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

52 Scopus citations

Abstract

Physical properties of starch from two cultivars of gamma-irradiated grain amaranth with different amylose content were investigated. Pasting viscosities decreased continuously with the increase in dosages of irradiation. Furthermore, different irradiation dosages resulted in modification of the thermal properties and crystallinity of starch. Dynamic oscillation on shear was also employed, temperature and frequency sweeps showed that changes in storage modulus and loss modulus were significant, with Tibet Yellow producing more elastic gels as compared to Hy030 at different irradiation dosages.

Original language	English
Pages (from-to)	954-960
Number of pages	7
Journal	Radiation Physics and Chemistry
Volume	78
Issue number	11
DOIs	https://doi.org/10.1016/j.radphyschem.2009.07.019
State	Published - Nov 2009
Externally published	Yes

Keywords

Gamma irradiation
Grain amaranth starch
Rheology
X-ray diffraction

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10.1016/j.radphyschem.2009.07.019

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title = "Effect of gamma irradiation on the thermal and rheological properties of grain amaranth starch",

abstract = "Physical properties of starch from two cultivars of gamma-irradiated grain amaranth with different amylose content were investigated. Pasting viscosities decreased continuously with the increase in dosages of irradiation. Furthermore, different irradiation dosages resulted in modification of the thermal properties and crystallinity of starch. Dynamic oscillation on shear was also employed, temperature and frequency sweeps showed that changes in storage modulus and loss modulus were significant, with Tibet Yellow producing more elastic gels as compared to Hy030 at different irradiation dosages.",

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author = "Xiangli Kong and Stefan Kasapis and Jinsong Bao and Harold Corke",

year = "2009",

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AU - Kong, Xiangli

AU - Kasapis, Stefan

AU - Bao, Jinsong

AU - Corke, Harold

PY - 2009/11

Y1 - 2009/11

N2 - Physical properties of starch from two cultivars of gamma-irradiated grain amaranth with different amylose content were investigated. Pasting viscosities decreased continuously with the increase in dosages of irradiation. Furthermore, different irradiation dosages resulted in modification of the thermal properties and crystallinity of starch. Dynamic oscillation on shear was also employed, temperature and frequency sweeps showed that changes in storage modulus and loss modulus were significant, with Tibet Yellow producing more elastic gels as compared to Hy030 at different irradiation dosages.

AB - Physical properties of starch from two cultivars of gamma-irradiated grain amaranth with different amylose content were investigated. Pasting viscosities decreased continuously with the increase in dosages of irradiation. Furthermore, different irradiation dosages resulted in modification of the thermal properties and crystallinity of starch. Dynamic oscillation on shear was also employed, temperature and frequency sweeps showed that changes in storage modulus and loss modulus were significant, with Tibet Yellow producing more elastic gels as compared to Hy030 at different irradiation dosages.

KW - Gamma irradiation

KW - Grain amaranth starch

KW - Rheology

KW - X-ray diffraction

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U2 - 10.1016/j.radphyschem.2009.07.019

DO - 10.1016/j.radphyschem.2009.07.019

M3 - 文章

AN - SCOPUS:68849130914

SN - 0969-806X

VL - 78

SP - 954

EP - 960

JO - Radiation Physics and Chemistry

JF - Radiation Physics and Chemistry

IS - 11

ER -

Effect of gamma irradiation on the thermal and rheological properties of grain amaranth starch

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Keywords

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