산업식품공학 (Food Engineering Progress)

  • 제13권4호
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  • Pages.335-340
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  • 2009
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  • 1226-4768(pISSN)
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  • 2288-1247(eISSN)
한국산업식품공학회 (Korean Society for Industrial Food Engineering)
권호 표지

초미세분쇄를 이용한 옥수수 변성전분의 물리적 특성 변화 구명

Investigation of Physical Property Change in Modified Corn Starch by Ultra Fine Pulverization

  • 투고 : 2009.10.21
  • 심사 : 2009.11.18
  • 발행 : 2009.11.30
⟨ 이전 논문 다음 논문 ⟩

초록

본 연구는 초미세분쇄기술을 이용하여 옥수수전분의 입자구조파괴가 이루어졌을 때 분자구조적, 물리적 변화가 어떻게 이루어지는지를 구명하고자 하였다. 초미세 분쇄처리 후 옥수수전분의 평균직경은 약 50% 감소가 이루어졌으며 비표면적은 567% 증가하였다. 초미세분쇄처리 전 후의 옥수수전분에 대한 분자량분포를 GPC로 측정한 결과 분쇄 후 저분자량의 Peak II의 면적이 21.0%에서 86.5%로 상승하였다. 손상전분 함량은 각각 9.63%와 83.57%로 초미세분쇄처리에 의하여 크게 증가하였다. 옥수수전분의 경우는 겔(gel)을 형성하였으나 초미세분쇄처리 후에는 전분의 분쇄과정에서 전분입자파괴와 아울러 옥수수전분의 분자량이 저분자화 되면서 겔 형성능력이 크게 저하되었다.

This study was performed to analyze changes in the molecular structural and physical properties of modified corn starch, in which particle structure was broken using high impact planetary mill and ultra fine pulverizing techniques. The average diameter and specific surface area of the modditied corn starch after pulverization decreased 50% and increased 567%, respectively. Content of low molecular substances mersured using gel permeation chromatography (GPC) increased from 21.0% to 86.5% after pulverizing corn starch. Damaged starch content also increased from 9.63% to 83.57% after pulverizing corn starch. After pulverization, gel formation capacity corn starch was reduced compared to that of control by structure breakdown.

키워드

과제정보

연구 과제 주관 기관 : 한국과학재단

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