Alkali Gelatinization of Corn Starch Suspension

옥수수전분 현탁액의 알칼리 호화

  • Shin, Hae-Hun (Division of Foodservice Industry, Baekseok College of Cultural Studies) ;
  • Cha, Yun-Hwan (Biovan Co. Ltd. and Department of Biotechnology, Yonsei University) ;
  • Pyun, Yu-Ryang (Biovan Co. Ltd. and Department of Biotechnology, Yonsei University) ;
  • Cho, Seok-Cheol (Biovan Co. Ltd. and Department of Biotechnology, Yonsei University)
  • 신해헌 (백석문화대학 외식산업학부) ;
  • 차윤환 ((주)바이오벤 및 연세대학교 생명공학과) ;
  • 변유량 ((주)바이오벤 및 연세대학교 생명공학과) ;
  • 조석철 ((주)바이오벤 및 연세대학교 생명공학과)
  • Published : 2007.04.30


In this study, we examined the characteristics of alkali gelatinization of corn starch. Here, the degree of corn starch gelatinization increased exponentially with the NaOH concentration of the starch slurry. The alkali gelatinization initiation point (AGIP) was obtained from the intersection point of gelatinization slope line, which resulted from the regression of the logarithmic degree of gelatinization, and was markedly changed. The effects of temperature and corn starch concentration on alkali gelatinization were studied with a 10%(w/w) corn starch suspension. We found that this corn starch suspension gelatinized in 24.1 meq/g starch of NaOH at $40^{\circ}C$, and in 9.8 meq NaOH/g starch at $60^{\circ}C$. Moreover, a 40%(w/w) corn starch suspension gelatinized with 9.5 meq NaOH/g starch, even at $40^{\circ}C$. These results indicate that the amount of alkali added for the gelatinization of corn starch has an inverse relationship with the temperature and concentration of corn starch.


  1. Donovan JW. Phase transitions of the starch-water system. Biopolymers 18: 263-275 (1979)
  2. Biliaderis CG. Structures and phase transitions of starch polymers. Food Sci. Technol. 87: 57-168 (1998)
  3. Evans ID, Haisman DR. The effect of solutes on the gelatinization temperature range of potato starch. Starch-Starke 34: 224-231 (1982)
  4. Whistler RL, Spencer WW. Distribution of substituents in corn starch granules with low degrees of substitution. Arch. Biochem. Biophys. 87: 137-139 (1960)
  5. Rendleman JA. Complexes of alkali metals and alkaline-earth metals with carbohydrates. pp. 209-220. In: Advances in Carbohydrate Chemistry. Academic Press, New York-London (1966)
  6. Banks W, Greenwood CT, Hourston DJ, Proctor AR. Amylose in aqueous solution-a viscometric study. Polymer 12: 452-466 (1971)
  7. Roberts HJ. Nondegradative reactions of starch, pp. 575-590. In: Starch, Chemistry and Technology. Vol 1. Whistler RL, Paschall EF (eds). Academic Press, New York-London (1965)
  8. Jane J, Craig SAS, Seib PA, Hoseney RC. Characterization of granular cold water-soluble starch, Starch-Starke 38: 258-263 (1986)
  9. Doppert HL. The behavior of amylose in aqueous salt solutions. PhD thesis, State University, Leiden, Netherland (1963)
  10. Helfferich F. Ion Exchange. McGraw-Hill Book Company, Inc., London, UK. pp.134 (1962)
  11. Ohshimal H, Miyajima T. Evaluation of the Donnan model for polyelectrolytes using the composite Poisson-Boltzmann equations. Colloid Polym. Sci. 272: 803-811 (1994)
  12. Helfferich F. Ion Exchange. McGraw-Hill Book Company, Inc., London, UK. p. 157 (1962)
  13. McPherson R. Preparation and use of corrugating adhesive made without borax. Tappi J. 72: 135-138 (1989)
  14. Ragheb AA, Abd EI-Thalouth I, Tawfik S. Gelatinization of starch in aquous alkaline solutions. Starch-Starke 47: 338-345 (1995)
  15. Ragheb AA, Abd El-Thalouth I, Tawfik S. Gelatinization of thermally treated starch with sodium hydroxide in the solid state. Starch-Starke 48: 57-64 (1996)
  16. Jane JL. Mechanism of starch gelatinization in neural salt solutions. Starch-Starke 45: 161-166 (1993)
  17. Bryant CM, Bruce RH. Effect of lime on gelatinization of corn flour and starch. Cereal Chem. 74: 171-185 (1997)
  18. Wootton M, Weeden D, Munk M. A rapid method for the estimation of starch gelatinization in processed foods. Food Aust. 23: 612-615 (1971)
  19. Wootton M, Ho P. Alkali gelatinization of wheat starch. Starch-Starke 41: 261-265 (1989)
  20. De Willigen AHA, De Groot PW. Adsorption of electrolytes on potato starch. Starch-Starke 23: 37-42 (1971)
  21. Maher GG. Alkali gelatinization of starches. Starch-Starke 35: 226-234 (1983)
  22. Wootton M, Bamunarachchi A. Application of differential scanning calorimetry to starch gelatinization. I. Commercial native and modified starches. Starch-Starke 31: 201-204 (1979)