RESUMO

The protein content (N x 6.25) of the seeds of Erythrina edulis (balú) varies between 18-21%; when the fraction corresponding to non-protein nitrogen is extracted with trichloroacetic acid (10%), this value decreases to 14-15%. Remarkable differences in the distribution of the protein fractions are observed when two schemes of extraction are assayed. The amino acid analysis shows that this legume has similar or higher amounts of most amino acids than those present in other leguminosae; the calculated chemical score and protein score show that methionine is the first limiting amino acid and tryptophan, the second. The protein efficiency ratio (PER) of thermically-treated flours has the highest value at 30 minutes of treatment (1.15).

Assuntos

Proteínas Alimentares/análise , Erythrina/análise , Proteínas de Plantas/análise , Plantas Medicinais , Aminoácidos Essenciais/análise , Proteínas Alimentares/normas , Nitrogênio/análise , Valor Nutritivo

Assuntos

Alcaloides/análise , Erythrina/análise , Plantas Medicinais , Brasil , América Central , Fenômenos Químicos , Química , Cromatografia Gasosa , Espectrometria de Massas , América do Norte , Sementes/análise , Especificidade da Espécie