The present invention relates a nutraceutical or pharmaceutical composition, in combination of 80 unmilled, colored rice varieties. The composition comprises various metabolites, their complete metabolic profiling and study of anti-oxidative capacities of 80 unmilled, colored rice varieties by performing mass spectrometry coupled to liquid chromatography (LC-MS). The present invention further relates to a process for identification and characterization of metabolites using soft ionization method such as electrospray-ionization and fragmentation approach (LC/MS/MS). The present invention also relates to a process for preparing rice seed extract and a process for extraction of protein from 80 unmilled, colored rice varieties. The metabolite composition, extracted seed extracts and extracted protein have high nutritional and medicinal properties in relation to various cosmetic problems, diet disorders, various diseases like - cancer, -inflammatory, diabetic etc.
