In-Depth Assessment of Proximate, Vitamin, and Mineral Composition Analysis of Locally Cultivated Rice Varieties in South-Eastern Nigeria

Abstract

In this research, the aim was to assess the proximate analysis, as well as the vitamin and mineral composition analysis of locally cultivated rice varieties in rice south-eastern Nigeria with a focus on the location-based effect and grain-length-based effect on proximate analysis, mineral, and vitamin contents of FARO 44 rice species farmed in Southeast Nigeria. The study area includes several locations in southeast Nigeria: Omasi (Latitude: 6° 42' 14" N, Longitude: 6°58' 46" E), Omar (Latitude: 6° 30' 37" N, Longitude: 6° 57' 32" E), Ikwo (Latitude: 6.0659° N, longitude: 8.0953° E), Izzi (Latitude: 6.5792° N, Longitude: 8.0475° E), Adani (Latitude: 6.7340° N, longitude: 7.0095° E), and Eha-Amufu (Latitude: 6.6590° N, Longitude: 7.7607°E). Standard methods were followed during sampling and laboratory analysis. The study found that the main effect of locations on the proximate analysis of FARO 44 rice species was not significant, except for protein, moisture, and carbohydrate (CHO) content. The highest protein content was observed in the Ikwo location, while moisture content was similar among several locations except for Eha-Amufu, which had the lowest moisture content. Regarding vitamin content, the location had a significant influence, with variations observed in different locations for vitamin E, B1, B2, vitamin C, and B-Carotene. Furthermore, both location and grain length had a significant effect on mineral content, particularly copper, zinc, and potassium, with variations observed among different locations and grain lengths.

Keywords: mineral composition, proximate analysis, vitamin, rice, south-east Nigeria

DOI: 10.7176/JBAH/13-14-02

Publication date:August 31^st 2023