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KMID : 1007520030120050508
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Food Science and Biotechnology
2003 Volume.12 No. 5 p.508 ~ p.512
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Effects of Gamma Irradiation on Physicochemical and Textural Properties of Starches
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Lee, You-Seok
Oh, Sang-Hee/Lee, Ju-Woon/Kim, Jang-Ho/Kim, Dong-Soo/Byun, Myung-Woo
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Abstract
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The effects of irradiation dose levels (0,5,10,15 and 20k㏉) on the physicochemical and textural properties of wheat, corn, potato, and rice starches were investigated. For wheat and corn starches, Hunter color lightness decreased while yellowness increased in all samples by irradiation. The transmittance of irradiated starches increased more than that of non-irradiated starches. Starches consistently increased the reducing sugar content in starches by irradiation. The swelling power of starches decreased in proportion to irradiation dose, while the solubility increased. Also firmness, consistency, cohesiveness, and viscosity significantly decreased in all starches by irradiation. Irradiated starch showed significant differences in physico-chemical and textural properties compared with non-irradiated. The results indicated that irradiation to starch could be applied to related industry.
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KEYWORD
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