Antioxidant, nutrition, and crystallinity properties from three kind of glutinous rice of Enrekang Regency, South Sulawesi Indonesia

Abstract

This research was carried out using a laboratory experiment method, which analyzed the total phenolic content (TPC), antioxidant activity, total anthocyanin, vitamins and the degree of crystallinity with XRD (X-ray Diffractometer), as additional data, analyzed all the elements contained in rice using the X-ray Fluorescence method. The research results showed that the total of Mandoti Kendenan glutinous rice phenol is higher than the other two glutinous rice, respectively 6.88 mg / g (MKR) and 6.74 mg / g (MSR) and 6.24 mg / g (BGR). Glutinous rice from Mandoti Salunkanan and Kendenan has an anthocyanin total of 5.03 mg / g sample and 3.96 mg / g sample is lower than black glutinous rice ie (119.42 mg / g sample). Evaluation of physicochemical properties obtained 11.6-15.01% moisture content, average protein content of 7.98-8.36%, fat content of 1.74-2.25%, total carbohydrates of 88.07-88.49%, and ash content of 0.86-1.15%. Vitamins obtained in all three types of rice showed vitamin B1 in black glutinous rice, namely (0.22) and Mandoti Salunkananglutinous rice of 0.45 but were not detected in the type of Mandoti Kendenan glutinous rice, vitamin B3 was found in all three types of black glutinous rice with values (2.15, 1.63, and 2.76) average total minerals of Cu (0.11), Fe (0.26) and Zn (0.86) (P ≤ 0.05). The conclusion of this research is that the three types of glutinous rice has antioxidant activity and important components of vitamins and minerals.