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논문 기본 정보

자료유형
학술저널
저자정보
Bum-Keun Kim (Korea Food Research Institute) Jun-Soo Lee (Korea Food Research Institute) Yong-Jin Cho (Korea Food Research Institute) Dong-June Park (Korea Food Research Institute)
저널정보
한국식품과학회 Food Science and Biotechnology Food Science and Biotechnology vol 17. no 4
발행연도
2008.8
수록면
814 - 818 (5page)

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초록· 키워드

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Corn and rice starches were physically modified by planetary mill. While native starches showed high peak viscosities (1,001 and 563 cp), it decreased largely (42 and 20 cp for rice and corn starch, respectively) after 2 hr of physical modification. When two starches were co-ground, peak viscosities decreased more largely than single ground one only in 30 min, indicating the pasting properties could be easily changed by co-grinding. Especially, the higher the amount of corn starch, the viscosity decreased more largely, which means that paste stability could be controlled also by changing the ratio of corn and rice starch. Mean particle size increased with physical modification time since particles became spread because of shear force. There were also changes in surface morphology after physical modification. Fluid property, such as mean time to avalanche (MTA), was improved (from 6.16±0.47 and 8.37±1.23 sec to 5.47±0.78 and 5.26±1.37 sec for rice and corn starch, respectively) by physical modification. Pasting property, such as swelling power, was also improved by physical modification. These mean that native starches can be applied to both conventional powder and new paste-food industry more efficiently by physical modification.

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Abstract
Introduction
Materials and Methods
Results and Discussion
Acknowledgments
References

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