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Studies on the Rice RVA Profile Characteristics and Its Correlation with the Quality

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2005

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Abstract

Rice quality is a key factor and widely concerned by rice breeders and consumers, but it is difficult to evaluate it only through physical and chemical indices. In this study, 114 and 105 varieties including indica, japonica and waxy varieties were employed in two replicates to study the relationship between RVA profile characteristics and rice quality, including the appearance quality, cooking physico-chemical factor and cooking quality. The main results were as follows: (1) RVA profiles characteristics had close relationships with translucency and chalkiness. Rice varieties with higher chalkiness had significant AAC, HPV, CPV, SBV and CSV. (2) RVA profiles characteristics had significant correlation with AAC and GC, but no significant with GT. (3) With the exception to PKV, all the other RVA profiles characteristics correlated significantly with eating quality. These results showed that RVA profiles characteristics could be used as indices to assist in varietal selection for good cooking rice quality.