Variation in the Mineral Content of 8 Cultivars of Pigmented Brown Rice

Abstract

We measured the concentrations of 7 minerals in 8 cultivars of pigmented brown rice grown between 2002-2005, then compared these concentrations with those in Koshihikari rice cultivated in the same field. The results showed that the calcium content of pigmented brown rice was higher than that of the Koshihikari cultivar. These results raise the possibility that the potassium, magnesium and phosphorus content of the pigmented rice may be higher than in the Koshihikari cultivar, whereas its zinc concentration might be lower than in the Koshihikari cultivar.