Proximate and mineral content of maize landrace (tunu’ana’) from East Nusa Tenggara

Abstract

Abstract. Murningsih T, Yulita KS, Bora CY, Arsa IGB. 2018. Proximate and mineral content of maize landrace (tunu’ana’) from East Nusa Tengga. Pros Sem Nas Masy Biodiv Indon 5: 107-111. In this study, we carried out analysis of the proximate and mineral content of maize landrace (tunu’ana’ ) based on the method recommended by AOAC (Association of Official Analytical Chemists). Three superior varieties (Piet Kuning, Gumarang and Lamuru) are used as a standard comparison. The proximate analysis results showed that tunu'ana' contained water (10.49±0.01%), ash (1.45±0.01%), protein (11.78±0.05%), fat (5, 59±0.22%), crude fiber (6.84±0.07%), total carbohydrate (70.69±0.21%) and energy (380.19±1.56 kcal / 100g) based on dry weight. The results of mineral analysis showed that the tunu'ana' contained magnesium 127.50±0.00 mg, iron (7.19±0.67 mg), calcium (11.50±0.01 mg), potassium (310.00±0.01 mg), phosphorus (450.00±0.00 mg), copper (40.20±0.45 mg), manganese (0.669±0.23 mg) and zinc (3.29±0.61 mg) per 100 g of dry weight. Based on the results of the analysis, it was shown that the tunu'ana' contained higher nutrients and minerals than the three superior varieties but the highest water (12.05±0.01%) and calcium content (19.50±0.01) mg / 100g were in Lamuru, while the highest carbohydrate (12.05±0.01%) was in Gumarang.