Retrogradation of Dilute Starch Dispersion

희석 전분 현탁액의 노화

  • 김남수 (농수산물유통공사 종합식품연구원) ;
  • 남영중 (농수산물유통공사 종합식품연구원) ;
  • 신동화 (농수산물유통공사 종합식품연구원)
  • Published : 1988.02.01


Retrogradation characteristics of 1% dilute rice starch dispersion were analyzed. The retrogradation was increased with prolonged storage, however, the trend in increase was more conspicuous during the initial phase of retrogradation period. The Avrami exponent, rate constant, and time constant of 1% dilute Chuchong starch dispersion were 0.96, 0.21 $days^{-1}$, and 4.77 days, respectively As the Avrami exponent approaches unity (n=1), it is confirmed that the dilute rice starch dispersion retrogrades following the formation of a rod-like growth of crystals from instantaneous nuclei. When the retrogradation process of dilute rice starch dispersion was traced, the three-dimensional structure of crystals which had different contour from native stach was formed.