Correlation Analysis Between RVA Profile Characteristics and Quality in Rice

A total of 106 rice varieties were employed to study the relationship between RVA profile characteristics and rice quality,including the appearance quality and cooking quality.Results indicated that chalky grain rate was positively correlated with breakdown and setback of RVA profile,with correlation coefficients of-0.43 and 0.40,respectively.RVA profile characteristics had significant correlations with amylose content and gel consistency in the varieties with low amylose content or waxy varieties,whereas not significant in the varieties with high or medium amylose content.Amylose content was positively correlated with RVA profile characteristics except for breakdown and setback in waxy varieties,with correlation coefficients over 0.85.Thus,it is concluded that the less amylose content is,the more significant correlation between amylose content and RVA profile in rice.