|
KMID : 1024420150190040392
|
|
Food Engineering Progress
2015 Volume.19 No. 4 p.392 ~ p.398
|
|
|
Physicochemical Properties of High-amylose Rice Varieties
|
|
Sim Eun-Yeong
Chung Shin-Kyo
Cho Jun-Hyeon
Woo Koan-Sik
Park Hye-Young
Kim Hyun-Ju
Oh Sea-Kwan
Kim Uk-Han
|
|
|
Abstract
|
|
|
|
The objective of this study was to determine the physico-chemical properties in the high-amylose rice varieties. The rice flours were analyzed by RVA, DSC, HPAEC, resistant starch kit, SEM, spectrophotometer, etc. According to the RVA measurement of rice flours, the pasting temperature of Dodamssal was higher than those of the others. The proportion of amylopectin short chains (DP 6-12) of the Dodamssal was significantly lower than that of the others. The contents of amylose and resistant starch in the high-amylose rice flours ranged from 19.03% to 38.71% and from 0.6% to 12.39%, respectively. In SEM images, starch granules within Ilmibyeo, Mimyeon, Saegoami rice flours displayed polyhedrons different from those (relatively spherical morphology) of Dodamssal rice flour. According to the DSC results of rice flours, there were significant differences in the onset, peak temperatures of the endothermic peak. Gelatinization enthalpy was 4.52-6.3 J/g, with the lowest change in Dodamssal rice flour.
|
|
|
KEYWORD
|
|
|
Dodamssal , high-amylose rice , resistant starch , differential scanning calorimetry ,
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|