Abstract: Seven varieties of waxy corn were used to isolate large and small starch granules and constitute the reconstituted starch according to different weight ratio. Pasting and rheological properties of the reconstituted starch were analyzed by dint of Rapid Viso\|Analyzer and rheometer， respectively. The results indicated that peak viscosity， breakdown and consistency coefficient of seven waxy corns in five reconstituted starch treatments exhibited as 3∶0>2∶1>1∶1>1∶2>0∶3， and flow rheological index represented as 3∶0<2∶1<1∶1<1∶2<0∶3. Trough viscosity， final viscosity， setback value， peak time and pasting temperature in the reconstituted starch were different among seven varieties. Correlation analysis showed the percentage of large starch granule in the reconstituted starch was significantly positively correlated with peak viscosity （R2=0.96-0.99）， breakdown （R2=0.92-0.99） and consistency coefficient （R2=0.89-0.98）， while significantly negatively correlated with flow behavior index （R2=-0.93-1.00）. The relations of the percentage of small starch granule and these properties were contrary. Therefore， the higher percentage of large starch granule in the reconstituted starch was， the bigger peak viscosity， breakdown and consistency coefficient were， and the smaller flow behavior index was.

Key words: waxy corn, reconstituted starch, pasting property, rheological property