Grain color measurement and nutrient content of local pigmented rice from South Sulawesi

Abstract

Abstract This study is aimed at measuring the color and nutrient contents of local pigmented rice from South Sulawesi. Five grams of husked rice grains are placed on a 60 mm petri dish before attaching the TES 135 colorimeter. Total protein content was measured using the Kjeldahl method. Total fat content was measured using Soxhlet. Selected varieties were analyzed further for zinc (Zn) and iron (Fe) content using Atomic Absorption. Spectroscopy. Data were analyzed using a one-way ANOVA, followed by the Duncan Multiple Range Test at 5%. The results showed that the Le’leng variety showed the lowest values of L*, a*, and b*, which means that it has the darkest color. The highest protein content is found in Le’leng and Kobo. The protein content of local pigmented rice is higher but tends to be similar in fat content to modern rice. It can be concluded that colorimetry grain color measurement follows the grains’ visual appearance. The darker the grain color, the lower the L*, a*, and b* parameters. Local pigmented rice from South Sulawesi has significant protein, fat, Fe, and Zn. Color appearance can be a preliminary visual indicator of the bioavailability of compounds with health benefits in pigmented rice..