Study on Starch Properties of Rice Enriched wil Resistant Starch |
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| Affiliation: | Jing LIN, Baoxia SUN, Xianwen FANG, Yanping WANG, Suobing ZHANG, Yinjie WANG 1. Institute of Food Crops, Jiangsu Academy of Agricultural Sciences / Research Center for Protection and Utilization of Agricul- tural Germplasm Resource in Jiangsu Province / Jiangsu High Quality Rice R ＆ D Center / Nanjing Branch of China National Center for Rice Improvement, Nanjing 210014, China 2. Yazhou Town Agricultural Service Center in Jiangsu Province, Haian 226641, China |
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| Abstract: | This study aimed to compare starch properties among rice germplasms with different contents of resistant starch. Rice germplasms with significant differ- ences in resistant starch content were screened by the rice germplasm resource project team in Jiangsu Academy of Agricultural Sciences, to analyze the differences in RVA eigenvalues and starch crystal thermodynamic properties using differential scanning calorimeter （DSC）. The result showed that three rice materials with high contents of resistant starch exhibited low breakdown viscosity and high setback vis- cosity; three rice materials with low contents of resistant starch exhibited high breakdown viscosity and low setback viscosity. Significant differences were observed in RVA eigenvalues and starch crystal thermodynamic properties among rice germplasms with different contents of resistant starch, which provided new indices for breeding functional rice cultivars with high resistant starch content. |
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| Keywords: | Rice Resistant starch RVA eigenvalue Starch crystal thermodynamics |
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