Correlation of Total Flavonoid Contents and Total Polyphenol Contents in Colored Rice Accessions Collected from Different Countries

Rice is the one of major food crop and serve as important source of daily caloric intake around the world. Therefore, identification of promising traits (e.g. seed color and bioactive compounds etc.) in its gene-bank is very important for production and breeding purposes. Especially, the colored rice has better germinability and resistance to biotic and abiotic stresses. In humans, colored rice consumption proved helpful in suppressing aging, eyesight protection with escalated anti-cancer and anti-obesity activities and these functions are associated with antioxidant activity. Presence of antioxidant compounds such as polyphenols and flavonoids trigger the antioxidant activities in the plants and these compounds are abundant in the colored rice than white rice; suggesting the significance to identify rice accessions rich in these compounds. Therefore, this study was focused on the identification of correlation between total flavonoid and polyphenol contents of colored rice accessions from different ecological origins.