Gr. Kereliuk et Fw. Sosulski, COMPARISON OF STARCH FROM FLINT CORN WITH THAT FROM DENT CORN AND POTATO, Lebensmittel-Wissenschaft + Technologie, 29(4), 1996, pp. 349-356
The physical, chemical and functional properties of starch isolated fr
om corn grown in Alberta, predominantly flint, and dent corn grown in
Ontario and U.S.A. were evaluated. Starch isolated from Alberta-grown
potato was used for comparison. Starch from Alberta corn had the small
est amylose content. It also exhibited slightly lower gelatinization t
emperatures and enthalpy of gelatinization. Amylose content positively
influenced enthalpy of gelatinization and syneresis at 4 degrees C, a
nd negatively affected syneresis at -15 degrees C and water binding ca
pacity. Starches from the three locations were similar in their suscep
tibility to alpha-amylase hydrolysis, measured by the release of solub
le carbohydrate, and under scanning electron microscopy. Potato starch
had different properties from the corn starches. (C) 1996 Academic Pr
ess Limited