Total anthocyanin, flavonoid and phenolic content of pigmented rice landraces from South Sulawesi

Abstract

The precious traits in the coloured grains of red, deep purple, or black has attracted more attention due to its health benefits. These health benefits have been attributed in part to phytochemicals in the rice seed, including phenolic, flavonoid and anthocyanins which are known as source of antioxidants. This study was aimed to investigate the content of total phenolic, flavonoid and anthocyanin from seventeen pigmented rice collected from the upland regions of Toraja, Enrekang and from lowland of Jeneponto, South Sulawesi. The grains were dehusked using handheld rice husker (Kett TR130) then were grinded into fine powder before extraction. Flavonoids and anthocyanins were quantified by UV-Vis spectrophometry and total phenolic content was determined using Folin-Ciocalteu method. Results showed that black rice glutinous rice varieties from lowland (Le 'leng) had the highest content of total anthocyanins, flavonoids and phenolics.