Qualidade nutricional e valor protéico das amêndoas de baru, de pequi e da castanha-de-caju-do-cerrado em relação ao amendoim
Carregando...
Data
2011-04-01
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Federal de Goiás
Resumo
The aim of this study was to determine the nutritional quality and protein value of the baru almond, pequi almond, and cerrado cashew nut, native fruits from the Brazilian Savanna, compared to the peanut. Standardized methods were used to determine centesimal composition, amino acid profile, fatty acids and mineral content. The experiment was carried out with 42 male weanling Wistar rats. The animals were randomly assigned into seven groups. The experiment lasted fourteen days. The diets were formulated according to AIN-93G, six diets with 10% protein: CAS7 (7% lipid casein), CAS15 (15% lipid casein), AMB (baru almond), AMP (pequi almond), CJC (cerrado cashew nut), AMD (peanut) and a protein-free diet. A biological assay was carried out to assess the protein value, by Net Protein Ratio (NPR), Relative Net Protein Ratio (RNPR), and Protein Digestibility-Corrected Amino Acid Score (PDCAAS) methods. We found that the exotic almonds and the nut are rich in proteins (22.7 29.9 g/100 g), lipids (41.9 50.0 g/100 g), fibres (baru and pequi almonds, around 10.0 g/100 g), iron and zinc (4.3 7.4 mg/100 g). Baru almond s protein did not show deficiency in essential amino acids and lysine was the first limiting amino acid in the proteins of the pequi almond and cerrado cashew nut. The baru almond showed a RNPR of 86%, similar to that of the cerrado cashew nut (78%), but higher than that of the peanut (72%) and of the pequi almond (54%). The PDCAAS value of the baru almond (91%) was the highest and cerrado cashew nut and peanut presented similar values of this index (82%), which were higher than that of the pequi almond (55%). The baru almond has the highest protein quality, but the cerrado cashew nut and peanut are sources of good quality protein, too. We recommend the inclusion of these exotic foods in healthy diets and in food industry, and the baru almond and cerrado cashew nut as sources of complementary protein.
Descrição
Palavras-chave
Citação
SOUSA, Amanda Goulart de Oliveira. Nutritional quality and protein value of exotic almonds and nut from the Brazilian Savanna compared to peanut. 2011. 57 f. Dissertação (Mestrado em Ciencias da Saude) - Universidade Federal de Goiás, Goiânia, 2011.