Evaluation of the nutritional content of landrace beans in the Southern Amazon: implications for family agriculture and food security

Abstract

ABSTRACT Bean cultivation serves as a crucial food source for humans, supplying essential nutrients like proteins, vitamins, and iron. Hence, its significance is paramount, particularly for the Brazilian populace, where it's consumed across all regions of the country. This study evaluates the nutritional content of various landrace bean genotypes cultivated in Alta Floresta, Mato Grosso, Brazil, located in the southern Amazon region. By analyzing nine samples from local smallholder farmers, the study determines the levels of essential nutrients such as iron, zinc, calcium, magnesium, phosphorus, potassium, sulfur, boron, copper, and manganese. Results indicate significant variability in nutrient content across different genotypes, with iron levels ranging from 36 to 78 mg/kg and zinc levels from 29 to 48 mg/kg. These findings highlight the potential of landrace beans to enhance dietary nutrient intake, particularly in regions where food security is a concern. The study underscores the importance of preserving genetic diversity in beans, which can be leveraged for crop improvement programs aimed at boosting nutritional quality. Additionally, this research is crucial for promoting sustainable agricultural practices and ensuring food security in the southern Amazon region.