Author/Authors :
Noda، نويسنده , , Takahiro and Tsuda، نويسنده , , Shogo and Mori، نويسنده , , Motoyuki and Takigawa، نويسنده , , Shigenobu and Matsuura-Endo، نويسنده , , Chie and Saito، نويسنده , , Katsuichi and Arachichige Mangalika، نويسنده , , Wickramasinghe Hetti and Hanaoka، نويسنده , , Akihiro and Suzuki، نويسنده , , Yasuyuki and Yamauchi، نويسنده , , Hiroaki، نويسنده ,
Abstract :
The effect of harvest dates on the starch properties of six potato cultivars was studied. The focus was on the content of amylose and phosphorus, mean granule size, viscosity analysis by rapid visco analyzer, thermal analysis by differential scanning calorimetry, and chain length distribution of amylopectin. A late harvest date significantly enhanced mean granule size, the phosphorus content, peak viscosity and breakdown. Furthermore, a late harvest date led to significant but slight decreases in amylose content, pasting temperature, and gelatinization temperature. In contrast, harvest date had no influences on gelatinization enthalpy on distribution of the shorter chain lengths of amylopectin. The correlation coefficients were calculated among these starch properties, and starch phosphorus content was found to have positively significant correlations with the peak viscosity and breakdown.
Keywords :
Harvest date , potato starch , Phosphorus content , Pasting properties , Differential scanning calorimetry
