Análise de proteínas e fósforo em cereais e leguminosas das províncias de Maputo, Inhambane e Zambézia

Abstract

In the present work, the levels of phosphorus and proteins were determined in samples of legumes and cereals grown in the provinces of Maputo, Inhambane and Zambézia. However, the determination of phosphorus was by spectrophotometry in the Ultraviolet and Visible region and the proteins were determined by the Kjeldahl method. The accuracy of the methods was good with% RSD ranging from 0.00 to 16.82%. In determining protein levels, the levels obtained were: in corn (8.75% -PM, 9.70% -PI), cowpeas (20.3% -PM, 24.2% -PZ, 20.7% -PI), sorghum (9.43% -PZ, 9.40% -PI), millet (11.3% - PI), pigeon peas (20.1% -PZ), rice (8.34% -PM, 11.7% -PZ), yugo beans (17.6% -PM, 17.5% -PZ, 16.9% - PI), peanuts (27.8% -PM, 27.8% -PZ, 25.9% -PI). In determining phosphorus levels, the levels obtained were: in corn (0.18% -PM, 0.40% -PI), cowpeas (0.23% -PM, 0.28% -PZ, 0.28% -PI), sorghum (0.23% -PZ, 0.26% -PI), millet (0.28% - PI), pigeon peas (0.26% -PZ), rice (0.22% -PM, 0.12% -PZ), yoke beans (0.18% -PM, 0.21% -PZ, 0, 26% - PI), peanuts (0.25% -PM, 0.22% -PZ, 0.30% -PI).